diff options
Diffstat (limited to 'source/blender/gpu/shaders')
111 files changed, 4420 insertions, 267 deletions
diff --git a/source/blender/gpu/shaders/common/gpu_shader_common_color_utils.glsl b/source/blender/gpu/shaders/common/gpu_shader_common_color_utils.glsl index fe89985ae7f..33108d3a989 100644 --- a/source/blender/gpu/shaders/common/gpu_shader_common_color_utils.glsl +++ b/source/blender/gpu/shaders/common/gpu_shader_common_color_utils.glsl @@ -140,6 +140,84 @@ void hsl_to_rgb(vec4 hsl, out vec4 outcol) outcol = vec4((nr - 0.5) * chroma + l, (ng - 0.5) * chroma + l, (nb - 0.5) * chroma + l, hsl.w); } +/* ** YCCA to RGBA ** */ + +void ycca_to_rgba_itu_601(vec4 ycca, out vec4 color) +{ + ycca.xyz *= 255.0; + ycca.xyz -= vec3(16.0, 128.0, 128.0); + color.rgb = mat3(vec3(1.164), 0.0, -0.392, 2.017, 1.596, -0.813, 0.0) * ycca.xyz; + color.rgb /= 255.0; + color.a = ycca.a; +} + +void ycca_to_rgba_itu_709(vec4 ycca, out vec4 color) +{ + ycca.xyz *= 255.0; + ycca.xyz -= vec3(16.0, 128.0, 128.0); + color.rgb = mat3(vec3(1.164), 0.0, -0.213, 2.115, 1.793, -0.534, 0.0) * ycca.xyz; + color.rgb /= 255.0; + color.a = ycca.a; +} + +void ycca_to_rgba_jpeg(vec4 ycca, out vec4 color) +{ + ycca.xyz *= 255.0; + color.rgb = mat3(vec3(1.0), 0.0, -0.34414, 1.772, 1.402, -0.71414, 0.0) * ycca.xyz; + color.rgb += vec3(-179.456, 135.45984, -226.816); + color.rgb /= 255.0; + color.a = ycca.a; +} + +/* ** RGBA to YCCA ** */ + +void rgba_to_ycca_itu_601(vec4 rgba, out vec4 ycca) +{ + rgba.rgb *= 255.0; + ycca.xyz = mat3(0.257, -0.148, 0.439, 0.504, -0.291, -0.368, 0.098, 0.439, -0.071) * rgba.rgb; + ycca.xyz += vec3(16.0, 128.0, 128.0); + ycca.xyz /= 255.0; + ycca.a = rgba.a; +} + +void rgba_to_ycca_itu_709(vec4 rgba, out vec4 ycca) +{ + rgba.rgb *= 255.0; + ycca.xyz = mat3(0.183, -0.101, 0.439, 0.614, -0.338, -0.399, 0.062, 0.439, -0.040) * rgba.rgb; + ycca.xyz += vec3(16.0, 128.0, 128.0); + ycca.xyz /= 255.0; + ycca.a = rgba.a; +} + +void rgba_to_ycca_jpeg(vec4 rgba, out vec4 ycca) +{ + rgba.rgb *= 255.0; + ycca.xyz = mat3(0.299, -0.16874, 0.5, 0.587, -0.33126, -0.41869, 0.114, 0.5, -0.08131) * + rgba.rgb; + ycca.xyz += vec3(0.0, 128.0, 128.0); + ycca.xyz /= 255.0; + ycca.a = rgba.a; +} + +/* ** YUVA to RGBA ** */ + +void yuva_to_rgba_itu_709(vec4 yuva, out vec4 color) +{ + color.rgb = mat3(vec3(1.0), 0.0, -0.21482, 2.12798, 1.28033, -0.38059, 0.0) * yuva.xyz; + color.a = yuva.a; +} + +/* ** RGBA to YUVA ** */ + +void rgba_to_yuva_itu_709(vec4 rgba, out vec4 yuva) +{ + yuva.xyz = mat3(0.2126, -0.09991, 0.615, 0.7152, -0.33609, -0.55861, 0.0722, 0.436, -0.05639) * + rgba.rgb; + yuva.a = rgba.a; +} + +/* ** Alpha Handling ** */ + void color_alpha_clear(vec4 color, out vec4 result) { result = vec4(color.rgb, 1.0); @@ -147,15 +225,50 @@ void color_alpha_clear(vec4 color, out vec4 result) void color_alpha_premultiply(vec4 color, out vec4 result) { - result = vec4(color.rgb * color.a, 1.0); + result = vec4(color.rgb * color.a, color.a); } void color_alpha_unpremultiply(vec4 color, out vec4 result) { if (color.a == 0.0 || color.a == 1.0) { - result = vec4(color.rgb, 1.0); + result = color; } else { - result = vec4(color.rgb / color.a, 1.0); + result = vec4(color.rgb / color.a, color.a); + } +} + +float linear_rgb_to_srgb(float color) +{ + if (color < 0.0031308) { + return (color < 0.0) ? 0.0 : color * 12.92; + } + + return 1.055 * pow(color, 1.0 / 2.4) - 0.055; +} + +vec3 linear_rgb_to_srgb(vec3 color) +{ + return vec3( + linear_rgb_to_srgb(color.r), linear_rgb_to_srgb(color.g), linear_rgb_to_srgb(color.b)); +} + +float srgb_to_linear_rgb(float color) +{ + if (color < 0.04045) { + return (color < 0.0) ? 0.0 : color * (1.0 / 12.92); } + + return pow((color + 0.055) * (1.0 / 1.055), 2.4); +} + +vec3 srgb_to_linear_rgb(vec3 color) +{ + return vec3( + srgb_to_linear_rgb(color.r), srgb_to_linear_rgb(color.g), srgb_to_linear_rgb(color.b)); +} + +float get_luminance(vec3 color, vec3 luminance_coefficients) +{ + return dot(color, luminance_coefficients); } diff --git a/source/blender/gpu/shaders/common/gpu_shader_common_curves.glsl b/source/blender/gpu/shaders/common/gpu_shader_common_curves.glsl index 8948ed77557..e68c173c055 100644 --- a/source/blender/gpu/shaders/common/gpu_shader_common_curves.glsl +++ b/source/blender/gpu/shaders/common/gpu_shader_common_curves.glsl @@ -26,9 +26,29 @@ vec3 extrapolate_if_needed(vec3 parameters, vec3 values, vec3 start_slopes, vec3 return values + parameters * slopes; } -/* Curve maps are stored in sampler objects that are evaluated in the [0, 1] range, so normalize - * parameters accordingly. */ -#define NORMALIZE_PARAMETER(parameter, minimum, range) ((parameter - minimum) * range) +/* Curve maps are stored in texture samplers that are evaluated in the [0, 1] range, so normalize + * the parameters accordingly. Additionally, ensure that the parameters evaluate the sampler at the + * center of the pixels, because samplers are evaluated using linear interpolation. */ +float normalize_parameter(float parameter, float minimum, float range_divider) +{ + float normalized_parameter = (parameter - minimum) * range_divider; + + /* Curve maps have a fixed width of 257. We offset by the equivalent of half a pixel and scale + * down such that the normalized parameter 1.0 corresponds to the center of the last pixel. */ + float sampler_offset = 0.5 / 257.0; + float sampler_scale = 1.0 - (1.0 / 257.0); + return normalized_parameter * sampler_scale + sampler_offset; +} + +/* Same as normalize_parameter but vectorized. */ +vec3 normalize_parameters(vec3 parameters, vec3 minimums, vec3 range_dividers) +{ + vec3 normalized_parameters = (parameters - minimums) * range_dividers; + + float sampler_offset = 0.5 / 257.0; + float sampler_scale = 1.0 - (1.0 / 257.0); + return normalized_parameters * sampler_scale + sampler_offset; +} void curves_combined_rgb(float factor, vec4 color, @@ -46,7 +66,7 @@ void curves_combined_rgb(float factor, /* First, evaluate alpha curve map at all channels. The alpha curve is the Combined curve in the * UI. */ - vec3 parameters = NORMALIZE_PARAMETER(balanced.rgb, range_minimums.aaa, range_dividers.aaa); + vec3 parameters = normalize_parameters(balanced.rgb, range_minimums.aaa, range_dividers.aaa); result.r = texture(curve_map, vec2(parameters.x, layer)).a; result.g = texture(curve_map, vec2(parameters.y, layer)).a; result.b = texture(curve_map, vec2(parameters.z, layer)).a; @@ -55,13 +75,14 @@ void curves_combined_rgb(float factor, result.rgb = extrapolate_if_needed(parameters, result.rgb, start_slopes.aaa, end_slopes.aaa); /* Then, evaluate each channel on its curve map. */ - parameters = NORMALIZE_PARAMETER(result.rgb, range_minimums.rgb, range_dividers.rgb); + parameters = normalize_parameters(result.rgb, range_minimums.rgb, range_dividers.rgb); result.r = texture(curve_map, vec2(parameters.r, layer)).r; result.g = texture(curve_map, vec2(parameters.g, layer)).g; result.b = texture(curve_map, vec2(parameters.b, layer)).b; /* Then, extrapolate again if needed. */ result.rgb = extrapolate_if_needed(parameters, result.rgb, start_slopes.rgb, end_slopes.rgb); + result.a = color.a; result = mix(color, result, factor); @@ -83,18 +104,95 @@ void curves_combined_only(float factor, /* Evaluate alpha curve map at all channels. The alpha curve is the Combined curve in the * UI. */ - vec3 parameters = NORMALIZE_PARAMETER(balanced.rgb, range_minimum, range_divider); + vec3 parameters = normalize_parameters(balanced.rgb, vec3(range_minimum), vec3(range_divider)); result.r = texture(curve_map, vec2(parameters.x, layer)).a; result.g = texture(curve_map, vec2(parameters.y, layer)).a; result.b = texture(curve_map, vec2(parameters.z, layer)).a; /* Then, extrapolate if needed. */ result.rgb = extrapolate_if_needed(parameters, result.rgb, vec3(start_slope), vec3(end_slope)); + result.a = color.a; result = mix(color, result, factor); } +/* Contrary to standard tone curve implementations, the film-like implementation tries to preserve + * the hue of the colors as much as possible. To understand why this might be a problem, consider + * the violet color (0.5, 0.0, 1.0). If this color was to be evaluated at a power curve x^4, the + * color will be blue (0.0625, 0.0, 1.0). So the color changes and not just its luminosity, which + * is what film-like tone curves tries to avoid. + * + * First, the channels with the lowest and highest values are identified and evaluated at the + * curve. Then, the third channel---the median---is computed while maintaining the original hue of + * the color. To do that, we look at the equation for deriving the hue from RGB values. Assuming + * the maximum, minimum, and median channels are known, and ignoring the 1/3 period offset of the + * hue, the equation is: + * + * hue = (median - min) / (max - min) [1] + * + * Since we have the new values for the minimum and maximum after evaluating at the curve, we also + * have: + * + * hue = (new_median - new_min) / (new_max - new_min) [2] + * + * Since we want the hue to be equivalent, by equating [1] and [2] and rearranging: + * + * (new_median - new_min) / (new_max - new_min) = (median - min) / (max - min) + * new_median - new_min = (new_max - new_min) * (median - min) / (max - min) + * new_median = new_min + (new_max - new_min) * (median - min) / (max - min) + * new_median = new_min + (median - min) * ((new_max - new_min) / (max - min)) [QED] + * + * Which gives us the median color that preserves the hue. More intuitively, the median is computed + * such that the change in the distance from the median to the minimum is proportional to the + * change in the distance from the minimum to the maximum. Finally, each of the new minimum, + * maximum, and median values are written to the color channel that they were originally extracted + * from. */ +void curves_film_like(float factor, + vec4 color, + vec4 black_level, + vec4 white_level, + sampler1DArray curve_map, + const float layer, + float range_minimum, + float range_divider, + float start_slope, + float end_slope, + out vec4 result) +{ + vec4 balanced = white_balance(color, black_level, white_level); + + /* Find the maximum, minimum, and median of the color channels. */ + float minimum = min(balanced.r, min(balanced.g, balanced.b)); + float maximum = max(balanced.r, max(balanced.g, balanced.b)); + float median = max(min(balanced.r, balanced.g), min(balanced.b, max(balanced.r, balanced.g))); + + /* Evaluate alpha curve map at the maximum and minimum channels. The alpha curve is the Combined + * curve in the UI. */ + float min_parameter = normalize_parameter(minimum, range_minimum, range_divider); + float max_parameter = normalize_parameter(maximum, range_minimum, range_divider); + float new_min = texture(curve_map, vec2(min_parameter, layer)).a; + float new_max = texture(curve_map, vec2(max_parameter, layer)).a; + + /* Then, extrapolate if needed. */ + new_min = extrapolate_if_needed(min_parameter, new_min, start_slope, end_slope); + new_max = extrapolate_if_needed(max_parameter, new_max, start_slope, end_slope); + + /* Compute the new median using the ratio between the new and the original range. */ + float scaling_ratio = (new_max - new_min) / (maximum - minimum); + float new_median = new_min + (median - minimum) * scaling_ratio; + + /* Write each value to its original channel. */ + bvec3 channel_is_min = equal(balanced.rgb, vec3(minimum)); + vec3 median_or_min = mix(vec3(new_median), vec3(new_min), channel_is_min); + bvec3 channel_is_max = equal(balanced.rgb, vec3(maximum)); + result.rgb = mix(median_or_min, vec3(new_max), channel_is_max); + + result.a = color.a; + + result = mix(color, result, clamp(factor, 0.0, 1.0)); +} + void curves_vector(vec3 vector, sampler1DArray curve_map, const float layer, @@ -105,7 +203,7 @@ void curves_vector(vec3 vector, out vec3 result) { /* Evaluate each component on its curve map. */ - vec3 parameters = NORMALIZE_PARAMETER(vector, range_minimums, range_dividers); + vec3 parameters = normalize_parameters(vector, range_minimums, range_dividers); result.x = texture(curve_map, vec2(parameters.x, layer)).x; result.y = texture(curve_map, vec2(parameters.y, layer)).y; result.z = texture(curve_map, vec2(parameters.z, layer)).z; @@ -139,7 +237,7 @@ void curves_float(float value, out float result) { /* Evaluate the normalized value on the first curve map. */ - float parameter = NORMALIZE_PARAMETER(value, range_minimum, range_divider); + float parameter = normalize_parameter(value, range_minimum, range_divider); result = texture(curve_map, vec2(parameter, layer)).x; /* Then, extrapolate if needed. */ diff --git a/source/blender/gpu/shaders/common/gpu_shader_common_math_utils.glsl b/source/blender/gpu/shaders/common/gpu_shader_common_math_utils.glsl index 124654963fd..1ba22b4c5da 100644 --- a/source/blender/gpu/shaders/common/gpu_shader_common_math_utils.glsl +++ b/source/blender/gpu/shaders/common/gpu_shader_common_math_utils.glsl @@ -34,6 +34,17 @@ float compatible_pow(float x, float y) return pow(x, y); } +/* A version of pow that returns a fallback value if the computation is undefined. From the spec: + * The result is undefined if x < 0 or if x = 0 and y is less than or equal 0. */ +float fallback_pow(float x, float y, float fallback) +{ + if (x < 0.0 || (x == 0.0 && y <= 0.0)) { + return fallback; + } + + return pow(x, y); +} + float wrap(float a, float b, float c) { float range = b - c; @@ -114,8 +125,24 @@ void vector_copy(vec3 normal, out vec3 outnormal) outnormal = normal; } +vec3 fallback_pow(vec3 a, float b, vec3 fallback) +{ + return vec3(fallback_pow(a.x, b, fallback.x), + fallback_pow(a.y, b, fallback.y), + fallback_pow(a.z, b, fallback.z)); +} + /* Matirx Math */ +/* Return a 2D rotation matrix with the angle that the input 2D vector makes with the x axis. */ +mat2 vector_to_rotation_matrix(vec2 vector) +{ + vec2 normalized_vector = normalize(vector); + float cos_angle = normalized_vector.x; + float sin_angle = normalized_vector.y; + return mat2(cos_angle, sin_angle, -sin_angle, cos_angle); +} + mat3 euler_to_mat3(vec3 euler) { float cx = cos(euler.x); diff --git a/source/blender/gpu/shaders/common/gpu_shader_common_mix_rgb.glsl b/source/blender/gpu/shaders/common/gpu_shader_common_mix_rgb.glsl index f9652f1150b..39f3c722dd2 100644 --- a/source/blender/gpu/shaders/common/gpu_shader_common_mix_rgb.glsl +++ b/source/blender/gpu/shaders/common/gpu_shader_common_mix_rgb.glsl @@ -2,28 +2,24 @@ void mix_blend(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); outcol = mix(col1, col2, fac); outcol.a = col1.a; } void mix_add(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); outcol = mix(col1, col1 + col2, fac); outcol.a = col1.a; } void mix_mult(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); outcol = mix(col1, col1 * col2, fac); outcol.a = col1.a; } void mix_screen(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); float facm = 1.0 - fac; outcol = vec4(1.0) - (vec4(facm) + fac * (vec4(1.0) - col2)) * (vec4(1.0) - col1); @@ -32,7 +28,6 @@ void mix_screen(float fac, vec4 col1, vec4 col2, out vec4 outcol) void mix_overlay(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); float facm = 1.0 - fac; outcol = col1; @@ -61,14 +56,30 @@ void mix_overlay(float fac, vec4 col1, vec4 col2, out vec4 outcol) void mix_sub(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); outcol = mix(col1, col1 - col2, fac); outcol.a = col1.a; } void mix_div(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); + float facm = 1.0 - fac; + + outcol = vec4(vec3(0.0), col1.a); + + if (col2.r != 0.0) { + outcol.r = facm * col1.r + fac * col1.r / col2.r; + } + if (col2.g != 0.0) { + outcol.g = facm * col1.g + fac * col1.g / col2.g; + } + if (col2.b != 0.0) { + outcol.b = facm * col1.b + fac * col1.b / col2.b; + } +} + +/* A variant of mix_div that fallback to the first color upon zero division. */ +void mix_div_fallback(float fac, vec4 col1, vec4 col2, out vec4 outcol) +{ float facm = 1.0 - fac; outcol = col1; @@ -86,28 +97,24 @@ void mix_div(float fac, vec4 col1, vec4 col2, out vec4 outcol) void mix_diff(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); outcol = mix(col1, abs(col1 - col2), fac); outcol.a = col1.a; } void mix_dark(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); outcol.rgb = mix(col1.rgb, min(col1.rgb, col2.rgb), fac); outcol.a = col1.a; } void mix_light(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); outcol.rgb = mix(col1.rgb, max(col1.rgb, col2.rgb), fac); outcol.a = col1.a; } void mix_dodge(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); outcol = col1; if (outcol.r != 0.0) { @@ -150,7 +157,6 @@ void mix_dodge(float fac, vec4 col1, vec4 col2, out vec4 outcol) void mix_burn(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); float tmp, facm = 1.0 - fac; outcol = col1; @@ -200,7 +206,6 @@ void mix_burn(float fac, vec4 col1, vec4 col2, out vec4 outcol) void mix_hue(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); float facm = 1.0 - fac; outcol = col1; @@ -220,7 +225,6 @@ void mix_hue(float fac, vec4 col1, vec4 col2, out vec4 outcol) void mix_sat(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); float facm = 1.0 - fac; outcol = col1; @@ -238,7 +242,6 @@ void mix_sat(float fac, vec4 col1, vec4 col2, out vec4 outcol) void mix_val(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); float facm = 1.0 - fac; vec4 hsv, hsv2; @@ -251,7 +254,6 @@ void mix_val(float fac, vec4 col1, vec4 col2, out vec4 outcol) void mix_color(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); float facm = 1.0 - fac; outcol = col1; @@ -272,22 +274,26 @@ void mix_color(float fac, vec4 col1, vec4 col2, out vec4 outcol) void mix_soft(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); float facm = 1.0 - fac; vec4 one = vec4(1.0); vec4 scr = one - (one - col2) * (one - col1); outcol = facm * col1 + fac * ((one - col1) * col2 * col1 + col1 * scr); + outcol.a = col1.a; } void mix_linear(float fac, vec4 col1, vec4 col2, out vec4 outcol) { - fac = clamp(fac, 0.0, 1.0); - outcol = col1 + fac * (2.0 * (col2 - vec4(0.5))); + outcol.a = col1.a; } -void clamp_color(vec3 vec, vec3 min, vec3 max, out vec3 out_vec) +void clamp_color(vec4 vec, const vec4 min, const vec4 max, out vec4 out_vec) { out_vec = clamp(vec, min, max); } + +void multiply_by_alpha(float factor, vec4 color, out float result) +{ + result = factor * color.a; +} diff --git a/source/blender/gpu/shaders/compositor/compositor_alpha_crop.glsl b/source/blender/gpu/shaders/compositor/compositor_alpha_crop.glsl new file mode 100644 index 00000000000..d55c8efd4c6 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_alpha_crop.glsl @@ -0,0 +1,11 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + /* The lower bound is inclusive and upper bound is exclusive. */ + bool is_inside = all(greaterThanEqual(texel, lower_bound)) && all(lessThan(texel, upper_bound)); + /* Write the pixel color if it is inside the cropping region, otherwise, write zero. */ + vec4 color = is_inside ? texture_load(input_tx, texel) : vec4(0.0); + imageStore(output_img, texel, color); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_bilateral_blur.glsl b/source/blender/gpu/shaders/compositor/compositor_bilateral_blur.glsl new file mode 100644 index 00000000000..c7c5ada7a9f --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_bilateral_blur.glsl @@ -0,0 +1,31 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + vec4 center_determinator = texture_load(determinator_tx, texel); + + /* Go over the pixels in the blur window of the specified radius around the center pixel, and for + * pixels whose determinator is close enough to the determinator of the center pixel, accumulate + * their color as well as their weights. */ + float accumulated_weight = 0.0; + vec4 accumulated_color = vec4(0.0); + for (int y = -radius; y <= radius; y++) { + for (int x = -radius; x <= radius; x++) { + vec4 determinator = texture_load(determinator_tx, texel + ivec2(x, y)); + float difference = dot(abs(center_determinator - determinator).rgb, vec3(1.0)); + + if (difference < threshold) { + accumulated_weight += 1.0; + accumulated_color += texture_load(input_tx, texel + ivec2(x, y)); + } + } + } + + /* Write the accumulated color divided by the accumulated weight if any pixel in the window was + * accumulated, otherwise, write a fallback black color. */ + vec4 fallback = vec4(vec3(0.0), 1.0); + vec4 color = (accumulated_weight != 0.0) ? (accumulated_color / accumulated_weight) : fallback; + imageStore(output_img, texel, color); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_blur.glsl b/source/blender/gpu/shaders/compositor/compositor_blur.glsl new file mode 100644 index 00000000000..4f981c84f59 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_blur.glsl @@ -0,0 +1,55 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_math_utils.glsl) +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +vec4 load_input(ivec2 texel) +{ + vec4 color; + if (extend_bounds) { + /* If bounds are extended, then we treat the input as padded by a radius amount of pixels. So + * we load the input with an offset by the radius amount and fallback to a transparent color if + * it is out of bounds. */ + color = texture_load(input_tx, texel - radius, vec4(0.0)); + } + else { + color = texture_load(input_tx, texel); + } + + return color; +} + +/* Given the texel in the range [-radius, radius] in both axis, load the appropriate weight from + * the weights texture, where the texel (0, 0) is considered the center of weights texture. */ +vec4 load_weight(ivec2 texel) +{ + /* Add the radius to transform the texel into the range [0, radius * 2], then divide by the upper + * bound plus one to transform the texel into the normalized range [0, 1] needed to sample the + * weights sampler. Finally, also add 0.5 to sample at the center of the pixels. */ + return texture(weights_tx, (texel + vec2(radius + 0.5)) / (radius * 2 + 1)); +} + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* The mask input is treated as a boolean. If it is zero, then no blurring happens for this + * pixel. Otherwise, the pixel is blurred normally and the mask value is irrelevant. */ + float mask = texture_load(mask_tx, texel).x; + if (mask == 0.0) { + imageStore(output_img, texel, texture_load(input_tx, texel)); + return; + } + + /* Go over the window of the given radius and accumulate the colors multiplied by their + * respective weights as well as the weights themselves. */ + vec4 accumulated_color = vec4(0.0); + vec4 accumulated_weight = vec4(0.0); + for (int y = -radius; y <= radius; y++) { + for (int x = -radius; x <= radius; x++) { + vec4 weight = load_weight(ivec2(x, y)); + accumulated_color += load_input(texel + ivec2(x, y)) * weight; + accumulated_weight += weight; + } + } + + imageStore(output_img, texel, safe_divide(accumulated_color, accumulated_weight)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_bokeh_image.glsl b/source/blender/gpu/shaders/compositor/compositor_bokeh_image.glsl new file mode 100644 index 00000000000..6e98aa9fe17 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_bokeh_image.glsl @@ -0,0 +1,118 @@ +#pragma BLENDER_REQUIRE(common_math_lib.glsl) +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +/* Get the 2D vertex position of the vertex with the given index in the regular polygon + * representing this bokeh. The polygon is rotated by the rotation amount and have a unit + * circumradius. The regular polygon is one whose vertices' exterior angles are given by + * exterior_angle. See the bokeh function for more information. */ +vec2 get_regular_polygon_vertex_position(int vertex_index) +{ + float angle = exterior_angle * vertex_index - rotation; + return vec2(cos(angle), sin(angle)); +} + +/* Find the closest point to the given point on the given line. This assumes the length of the + * given line is not zero. */ +vec2 closest_point_on_line(vec2 point, vec2 line_start, vec2 line_end) +{ + vec2 line_vector = line_end - line_start; + vec2 point_vector = point - line_start; + float line_length_squared = dot(line_vector, line_vector); + float parameter = dot(point_vector, line_vector) / line_length_squared; + return line_start + line_vector * parameter; +} + +/* Compute the value of the bokeh at the given point. The computed bokeh is essentially a regular + * polygon centered in space having the given circumradius. The regular polygon is one whose + * vertices' exterior angles are given by "exterior_angle", which relates to the number of vertices + * n through the equation "exterior angle = 2 pi / n". The regular polygon may additionally morph + * into a shape with the given properties: + * + * - The regular polygon may have a circular hole in its center whose radius is controlled by the + * "catadioptric" value. + * - The regular polygon is rotated by the "rotation" value. + * - The regular polygon can morph into a circle controlled by the "roundness" value, such that it + * becomes a full circle at unit roundness. + * + * The function returns 0 when the point lies inside the regular polygon and 1 otherwise. However, + * at the edges, it returns a narrow band gradient as a form of anti-aliasing. */ +float bokeh(vec2 point, float circumradius) +{ + /* Get the index of the vertex of the regular polygon whose polar angle is maximum but less than + * the polar angle of the given point, taking rotation into account. This essentially finds the + * vertex closest to the given point in the clock-wise direction. */ + float angle = mod(atan(point.y, point.x) + rotation, M_2PI); + int vertex_index = int(angle / exterior_angle); + + /* Compute the shortest distance between the origin and the polygon edge composed from the + * previously selected vertex and the one following it. */ + vec2 first_vertex = get_regular_polygon_vertex_position(vertex_index) * circumradius; + vec2 second_vertex = get_regular_polygon_vertex_position(vertex_index + 1) * circumradius; + vec2 closest_point = closest_point_on_line(point, first_vertex, second_vertex); + float distance_to_edge = length(closest_point); + + /* Mix the distance to the edge with the circumradius, making it tend to the distance to a + * circle when roundness tends to 1. */ + float distance_to_edge_round = mix(distance_to_edge, circumradius, roundness); + + /* The point is outside of the bokeh, so we return 0. */ + float distance = length(point); + if (distance > distance_to_edge_round) { + return 0.0; + } + + /* The point is inside the catadioptric hole and is not part of the bokeh, so we return 0. */ + float catadioptric_distance = distance_to_edge_round * catadioptric; + if (distance < catadioptric_distance) { + return 0.0; + } + + /* The point is very close to the edge of the bokeh, so we return the difference between the + * distance to the edge and the distance as a form of anti-aliasing. */ + if (distance_to_edge_round - distance < 1.0) { + return distance_to_edge_round - distance; + } + + /* The point is very close to the edge of the catadioptric hole, so we return the difference + * between the distance to the hole and the distance as a form of anti-aliasing. */ + if (catadioptric != 0.0 && distance - catadioptric_distance < 1.0) { + return distance - catadioptric_distance; + } + + /* Otherwise, the point is part of the bokeh and we return 1. */ + return 1.0; +} + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* Since we need the regular polygon to occupy the entirety of the output image, the circumradius + * of the regular polygon is half the width of the output image. */ + float circumradius = float(imageSize(output_img).x) / 2.0; + + /* Move the texel coordinates such that the regular polygon is centered. */ + vec2 point = vec2(texel) - circumradius; + + /* Each of the color channels of the output image contains a bokeh with a different circumradius. + * The largest one occupies the whole image as stated above, while the other two have circumradii + * that are shifted by an amount that is proportional to the "lens_shift" value. The alpha + * channel of the output is the average of all three values. */ + float min_shift = abs(lens_shift * circumradius); + float min = mix(bokeh(point, circumradius - min_shift), 0.0, min_shift == circumradius); + + float median_shift = min_shift / 2.0; + float median = bokeh(point, circumradius - median_shift); + + float max = bokeh(point, circumradius); + vec4 bokeh = vec4(min, median, max, (max + median + min) / 3.0); + + /* If the lens shift is negative, swap the min and max bokeh values, which are stored in the red + * and blue channels respectively. Note that we take the absolute value of the lens shift above, + * so the sign of the lens shift only controls this swap. */ + if (lens_shift < 0) { + bokeh = bokeh.zyxw; + } + + imageStore(output_img, texel, bokeh); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_box_mask.glsl b/source/blender/gpu/shaders/compositor/compositor_box_mask.glsl new file mode 100644 index 00000000000..fad23f28fde --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_box_mask.glsl @@ -0,0 +1,27 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + vec2 uv = vec2(texel) / vec2(domain_size - ivec2(1)); + uv -= location; + uv.y *= float(domain_size.y) / float(domain_size.x); + uv = mat2(cos_angle, -sin_angle, sin_angle, cos_angle) * uv; + bool is_inside = all(lessThan(abs(uv), size)); + + float base_mask_value = texture_load(base_mask_tx, texel).x; + float value = texture_load(mask_value_tx, texel).x; + +#if defined(CMP_NODE_MASKTYPE_ADD) + float output_mask_value = is_inside ? max(base_mask_value, value) : base_mask_value; +#elif defined(CMP_NODE_MASKTYPE_SUBTRACT) + float output_mask_value = is_inside ? clamp(base_mask_value - value, 0.0, 1.0) : base_mask_value; +#elif defined(CMP_NODE_MASKTYPE_MULTIPLY) + float output_mask_value = is_inside ? base_mask_value * value : 0.0; +#elif defined(CMP_NODE_MASKTYPE_NOT) + float output_mask_value = is_inside ? (base_mask_value > 0.0 ? 0.0 : value) : base_mask_value; +#endif + + imageStore(output_mask_img, texel, vec4(output_mask_value)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_convert.glsl b/source/blender/gpu/shaders/compositor/compositor_convert.glsl new file mode 100644 index 00000000000..044fb057ca5 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_convert.glsl @@ -0,0 +1,8 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + vec4 value = texture_load(input_tx, texel); + imageStore(output_img, texel, CONVERT_EXPRESSION(value)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_despeckle.glsl b/source/blender/gpu/shaders/compositor/compositor_despeckle.glsl new file mode 100644 index 00000000000..e4743d69d17 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_despeckle.glsl @@ -0,0 +1,70 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +/* Returns true if the given color is close enough to the given reference color within the + * threshold supplied by the user, and returns false otherwise. */ +bool is_close(vec4 reference_color, vec4 color) +{ + return all(lessThan(abs(reference_color - color).rgb, vec3(threshold))); +} + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* A 3x3 weights kernel whose weights are the inverse of the distance to the center of the + * kernel. So the center weight is zero, the corners weights are (1 / sqrt(2)), and the rest + * of the weights are 1. The total sum of weights is 4 plus quadruple the corner weight. */ + float corner_weight = 1.0 / sqrt(2.0); + float sum_of_weights = 4.0 + corner_weight * 4.0; + mat3 weights = mat3(vec3(corner_weight, 1.0, corner_weight), + vec3(1.0, 0.0, 1.0), + vec3(corner_weight, 1.0, corner_weight)); + + vec4 center_color = texture_load(input_tx, texel); + + /* Go over the pixels in the 3x3 window around the center pixel and compute the total sum of + * their colors multiplied by their weights. Additionally, for pixels whose colors are not close + * enough to the color of the center pixel, accumulate their color as well as their weights. */ + vec4 sum_of_colors = vec4(0); + float accumulated_weight = 0.0; + vec4 accumulated_color = vec4(0); + for (int j = 0; j < 3; j++) { + for (int i = 0; i < 3; i++) { + float weight = weights[j][i]; + vec4 color = texture_load(input_tx, texel + ivec2(i - 1, j - 1)) * weight; + sum_of_colors += color; + if (!is_close(center_color, color)) { + accumulated_color += color; + accumulated_weight += weight; + } + } + } + + /* If the accumulated weight is zero, that means all pixels in the 3x3 window are similar and no + * need to despeckle anything, so write the original center color and return. */ + if (accumulated_weight == 0.0) { + imageStore(output_img, texel, center_color); + return; + } + + /* If the ratio between the accumulated weights and the total sum of weights is not larger than + * the user specified neighbor threshold, then the number of pixels in the neighborhood that are + * not close enough to the center pixel is low, and no need to despeckle anything, so write the + * original center color and return. */ + if (accumulated_weight / sum_of_weights < neighbor_threshold) { + imageStore(output_img, texel, center_color); + return; + } + + /* If the weighted average color of the neighborhood is close enough to the center pixel, then no + * need to despeckle anything, so write the original center color and return. */ + if (is_close(center_color, sum_of_colors / sum_of_weights)) { + imageStore(output_img, texel, center_color); + return; + } + + /* We need to despeckle, so write the mean accumulated color. */ + float factor = texture_load(factor_tx, texel).x; + vec4 mean_color = accumulated_color / accumulated_weight; + imageStore(output_img, texel, mix(center_color, mean_color, factor)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_directional_blur.glsl b/source/blender/gpu/shaders/compositor/compositor_directional_blur.glsl new file mode 100644 index 00000000000..1805cb5a7f5 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_directional_blur.glsl @@ -0,0 +1,21 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + ivec2 input_size = texture_size(input_tx); + + /* Add 0.5 to evaluate the input sampler at the center of the pixel. */ + vec2 coordinates = vec2(texel) + vec2(0.5); + + /* For each iteration, accumulate the input at the normalize coordinates, hence the divide by + * input size, then transform the coordinates for the next iteration. */ + vec4 accumulated_color = vec4(0.0); + for (int i = 0; i < iterations; i++) { + accumulated_color += texture(input_tx, coordinates / input_size); + coordinates = (mat3(inverse_transformation) * vec3(coordinates, 1.0)).xy; + } + + /* Write the accumulated color divided by the number of iterations. */ + imageStore(output_img, texel, accumulated_color / iterations); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_edge_filter.glsl b/source/blender/gpu/shaders/compositor/compositor_edge_filter.glsl new file mode 100644 index 00000000000..67e27c22602 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_edge_filter.glsl @@ -0,0 +1,31 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* Compute the dot product between the 3x3 window around the pixel and the edge detection kernel + * in the X direction and Y direction. The Y direction kernel is computed by transposing the + * given X direction kernel. */ + vec3 color_x = vec3(0); + vec3 color_y = vec3(0); + for (int j = 0; j < 3; j++) { + for (int i = 0; i < 3; i++) { + vec3 color = texture_load(input_tx, texel + ivec2(i - 1, j - 1)).rgb; + color_x += color * kernel[j][i]; + color_y += color * kernel[i][j]; + } + } + + /* Compute the channel-wise magnitude of the 2D vector composed from the X and Y edge detection + * filter results. */ + vec3 magnitude = sqrt(color_x * color_x + color_y * color_y); + + /* Mix the channel-wise magnitude with the original color at the center of the kernel using the + * input factor. */ + vec4 color = texture_load(input_tx, texel); + magnitude = mix(color.rgb, magnitude, texture_load(factor_tx, texel).x); + + /* Store the channel-wise magnitude with the original alpha of the input. */ + imageStore(output_img, texel, vec4(magnitude, color.a)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_ellipse_mask.glsl b/source/blender/gpu/shaders/compositor/compositor_ellipse_mask.glsl new file mode 100644 index 00000000000..28f725067e0 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_ellipse_mask.glsl @@ -0,0 +1,27 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + vec2 uv = vec2(texel) / vec2(domain_size - ivec2(1)); + uv -= location; + uv.y *= float(domain_size.y) / float(domain_size.x); + uv = mat2(cos_angle, -sin_angle, sin_angle, cos_angle) * uv; + bool is_inside = length(uv / radius) < 1.0; + + float base_mask_value = texture_load(base_mask_tx, texel).x; + float value = texture_load(mask_value_tx, texel).x; + +#if defined(CMP_NODE_MASKTYPE_ADD) + float output_mask_value = is_inside ? max(base_mask_value, value) : base_mask_value; +#elif defined(CMP_NODE_MASKTYPE_SUBTRACT) + float output_mask_value = is_inside ? clamp(base_mask_value - value, 0.0, 1.0) : base_mask_value; +#elif defined(CMP_NODE_MASKTYPE_MULTIPLY) + float output_mask_value = is_inside ? base_mask_value * value : 0.0; +#elif defined(CMP_NODE_MASKTYPE_NOT) + float output_mask_value = is_inside ? (base_mask_value > 0.0 ? 0.0 : value) : base_mask_value; +#endif + + imageStore(output_mask_img, texel, vec4(output_mask_value)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_filter.glsl b/source/blender/gpu/shaders/compositor/compositor_filter.glsl new file mode 100644 index 00000000000..e501c563dda --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_filter.glsl @@ -0,0 +1,20 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* Compute the dot product between the 3x3 window around the pixel and the filter kernel. */ + vec4 color = vec4(0); + for (int j = 0; j < 3; j++) { + for (int i = 0; i < 3; i++) { + color += texture_load(input_tx, texel + ivec2(i - 1, j - 1)) * kernel[j][i]; + } + } + + /* Mix with the original color at the center of the kernel using the input factor. */ + color = mix(texture_load(input_tx, texel), color, texture_load(factor_tx, texel).x); + + /* Store the color making sure it is not negative. */ + imageStore(output_img, texel, max(color, 0.0)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_flip.glsl b/source/blender/gpu/shaders/compositor/compositor_flip.glsl new file mode 100644 index 00000000000..919c454ee63 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_flip.glsl @@ -0,0 +1,15 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + ivec2 size = texture_size(input_tx); + ivec2 flipped_texel = texel; + if (flip_x) { + flipped_texel.x = size.x - texel.x - 1; + } + if (flip_y) { + flipped_texel.y = size.y - texel.y - 1; + } + imageStore(output_img, texel, texture_load(input_tx, flipped_texel)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_image_crop.glsl b/source/blender/gpu/shaders/compositor/compositor_image_crop.glsl new file mode 100644 index 00000000000..f20e033dee4 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_image_crop.glsl @@ -0,0 +1,7 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + imageStore(output_img, texel, texture_load(input_tx, texel + lower_bound)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_morphological_distance.glsl b/source/blender/gpu/shaders/compositor/compositor_morphological_distance.glsl new file mode 100644 index 00000000000..09f896b7a9d --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_morphological_distance.glsl @@ -0,0 +1,24 @@ +#pragma BLENDER_REQUIRE(common_math_lib.glsl) +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* Find the minimum/maximum value in the circular window of the given radius around the pixel. By + * circular window, we mean that pixels in the window whose distance to the center of window is + * larger than the given radius are skipped and not considered. Consequently, the dilation or + * erosion that take place produces round results as opposed to squarish ones. This is + * essentially a morphological operator with a circular structuring element. The LIMIT value + * should be FLT_MAX if OPERATOR is min and FLT_MIN if OPERATOR is max. */ + float value = LIMIT; + for (int y = -radius; y <= radius; y++) { + for (int x = -radius; x <= radius; x++) { + if (x * x + y * y <= radius * radius) { + value = OPERATOR(value, texture_load(input_tx, texel + ivec2(x, y), vec4(LIMIT)).x); + } + } + } + + imageStore(output_img, texel, vec4(value)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_morphological_distance_feather.glsl b/source/blender/gpu/shaders/compositor/compositor_morphological_distance_feather.glsl new file mode 100644 index 00000000000..acdd8a40342 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_morphological_distance_feather.glsl @@ -0,0 +1,101 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +/* The Morphological Distance Feather operation is a linear combination between the result of two + * operations. The first operation is a Gaussian blur with a radius equivalent to the dilate/erode + * distance, which is straightforward and implemented as a separable filter similar to the blur + * operation. + * + * The second operation is an approximation of a morphological inverse distance operation evaluated + * at a distance falloff function. The result of a morphological inverse distance operation is a + * narrow band distance field that starts at its maximum value at boundaries where a difference in + * values took place and linearly deceases until it reaches zero in the span of a number of pixels + * equivalent to the erode/dilate distance. Additionally, instead of linearly decreasing, the user + * may choose a different falloff which is evaluated at the computed distance. For dilation, the + * distance field decreases outwards, and for erosion, the distance field decreased inwards. + * + * The reason why the result of a Gaussian blur is mixed in with the distance field is because the + * distance field is merely approximated and not accurately computed, the defects of which is more + * apparent away from boundaries and especially at corners where the distance field should take a + * circular shape. That's why the Gaussian blur is mostly mixed only further from boundaries. + * + * The morphological inverse distance operation is approximated using a separable implementation + * and intertwined with the Gaussian blur implementation as follows. A search window of a radius + * equivalent to the dilate/erode distance is applied on the image to find either the minimum or + * maximum pixel value multiplied by its corresponding falloff value in the window. For dilation, + * we try to find the maximum, and for erosion, we try to find the minimum. Additionally, we also + * save the falloff value where the minimum or maximum was found. The found value will be that of + * the narrow band distance field and the saved falloff value will be used as the mixing factor + * with the Gaussian blur. + * + * To make sense of the aforementioned algorithm, assume we are dilating a binary image by 5 pixels + * whose half has a value of 1 and the other half has a value of zero. Consider the following: + * + * - A pixel of value 1 already has the maximum possible value, so its value will remain unchanged + * regardless of its position. + * - A pixel of value 0 that is right at the boundary of the 1's region will have a maximum value + * of around 0.8 depending on the falloff. That's because the search window intersects the 1's + * region, which when multiplied by the falloff gives the first value of the falloff, which is + * larger than the initially zero value computed at the center of the search window. + * - A pixel of value 0 that is 3 pixels away from the boundary will have a maximum value of around + * 0.4 depending on the falloff. That's because the search window intersects the 1's region, + * which when multiplied by the falloff gives the third value of the falloff, which is larger + * than the initially zero value computed at the center of the search window. + * - Finally, a pixel of value 0 that is 6 pixels away from the boundary will have a maximum value + * of 0, because the search window doesn't intersects the 1's region and only spans zero values. + * + * The previous example demonstrates how the distance field naturally arises, and the same goes for + * the erode case, except the minimum value is computed instead. + */ +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* A value for accumulating the blur result. */ + float accumulated_value = 0.0; + + /* Compute the contribution of the center pixel to the blur result. */ + float center_value = texture_load(input_tx, texel).x; + accumulated_value += center_value * texture_load(weights_tx, 0).x; + + /* Start with the center value as the maximum/minimum distance and reassign to the true maximum + * or minimum in the search loop below. Additionally, the center falloff is always 1.0, so start + * with that. */ + float limit_distance = center_value; + float limit_distance_falloff = 1.0; + + /* Compute the contributions of the pixels to the right and left, noting that the weights and + * falloffs textures only store the weights and falloffs for the positive half, but since the + * they are both symmetric, the same weights and falloffs are used for the negative half and we + * compute both of their contributions. */ + for (int i = 1; i < texture_size(weights_tx); i++) { + float weight = texture_load(weights_tx, i).x; + float falloff = texture_load(falloffs_tx, i).x; + + /* Loop for two iterations, where s takes the value of -1 and 1, which is used as the sign + * needed to evaluated the positive and negative sides as explain above. */ + for (int s = -1; s < 2; s += 2) { + /* Compute the contribution of the pixel to the blur result. */ + float value = texture_load(input_tx, texel + ivec2(s * i, 0)).x; + accumulated_value += value * weight; + + /* The distance is computed such that its highest value is the pixel value itself, so + * multiply the distance falloff by the pixel value. */ + float falloff_distance = value * falloff; + + /* Find either the maximum or the minimum for the dilate and erode cases respectively. */ + if (COMPARE(falloff_distance, limit_distance)) { + limit_distance = falloff_distance; + limit_distance_falloff = falloff; + } + } + } + + /* Mix between the limit distance and the blurred accumulated value such that the limit distance + * is used for pixels closer to the boundary and the blurred value is used for pixels away from + * the boundary. */ + float value = mix(accumulated_value, limit_distance, limit_distance_falloff); + + /* Write the value using the transposed texel. See the execute_distance_feather_horizontal_pass + * method for more information on the rational behind this. */ + imageStore(output_img, texel.yx, vec4(value)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_morphological_distance_threshold.glsl b/source/blender/gpu/shaders/compositor/compositor_morphological_distance_threshold.glsl new file mode 100644 index 00000000000..e6625e7419f --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_morphological_distance_threshold.glsl @@ -0,0 +1,88 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +/* The Morphological Distance Threshold operation is effectively three consecutive operations + * implemented as a single operation. The three operations are as follows: + * + * .-----------. .--------------. .----------------. + * | Threshold |-->| Dilate/Erode |-->| Distance Inset | + * '-----------' '--------------' '----------------' + * + * The threshold operation just converts the input into a binary image, where the pixel is 1 if it + * is larger than 0.5 and 0 otherwise. Pixels that are 1 in the output of the threshold operation + * are said to be masked. The dilate/erode operation is a dilate or erode morphological operation + * with a circular structuring element depending on the sign of the distance, where it is a dilate + * operation if the distance is positive and an erode operation otherwise. This is equivalent to + * the Morphological Distance operation, see its implementation for more information. Finally, the + * distance inset is an operation that converts the binary image into a narrow band distance field. + * That is, pixels that are unmasked will remain 0, while pixels that are masked will start from + * zero at the boundary of the masked region and linearly increase until reaching 1 in the span of + * a number pixels given by the inset value. + * + * As a performance optimization, the dilate/erode operation is omitted and its effective result is + * achieved by slightly adjusting the distance inset operation. The base distance inset operation + * works by computing the signed distance from the current center pixel to the nearest pixel with a + * different value. Since our image is a binary image, that means that if the pixel is masked, we + * compute the signed distance to the nearest unmasked pixel, and if the pixel unmasked, we compute + * the signed distance to the nearest masked pixel. The distance is positive if the pixel is masked + * and negative otherwise. The distance is then normalized by dividing by the given inset value and + * clamped to the [0, 1] range. Since distances larger than the inset value are eventually clamped, + * the distance search window is limited to a radius equivalent to the inset value. + * + * To archive the effective result of the omitted dilate/erode operation, we adjust the distance + * inset operation as follows. First, we increase the radius of the distance search window by the + * radius of the dilate/erode operation. Then we adjust the resulting narrow band signed distance + * field as follows. + * + * For the erode case, we merely subtract the erode distance, which makes the outermost erode + * distance number of pixels zero due to clamping, consequently achieving the result of the erode, + * while retaining the needed inset because we increased the distance search window by the same + * amount we subtracted. + * + * Similarly, for the dilate case, we add the dilate distance, which makes the dilate distance + * number of pixels just outside of the masked region positive and part of the narrow band distance + * field, consequently achieving the result of the dilate, while at the same time, the innermost + * dilate distance number of pixels become 1 due to clamping, retaining the needed inset because we + * increased the distance search window by the same amount we added. + * + * Since the erode/dilate distance is already signed appropriately as described before, we just add + * it in both cases. */ +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* Apply a threshold operation on the center pixel, where the threshold is currently hard-coded + * at 0.5. The pixels with values larger than the threshold are said to be masked. */ + bool is_center_masked = texture_load(input_tx, texel).x > 0.5; + + /* Since the distance search window will access pixels outside of the bounds of the image, we use + * a texture loader with a fallback value. And since we don't want those values to affect the + * result, the fallback value is chosen such that the inner condition fails, which is when the + * sampled pixel and the center pixel are the same, so choose a fallback that will be considered + * masked if the center pixel is masked and unmasked otherwise. */ + vec4 fallback = vec4(is_center_masked ? 1.0 : 0.0); + + /* Since the distance search window is limited to the given radius, the maximum possible squared + * distance to the center is double the squared radius. */ + int minimum_squared_distance = radius * radius * 2; + + /* Find the squared distance to the nearest different pixel in the search window of the given + * radius. */ + for (int y = -radius; y <= radius; y++) { + for (int x = -radius; x <= radius; x++) { + bool is_sample_masked = texture_load(input_tx, texel + ivec2(x, y), fallback).x > 0.5; + if (is_center_masked != is_sample_masked) { + minimum_squared_distance = min(minimum_squared_distance, x * x + y * y); + } + } + } + + /* Compute the actual distance from the squared distance and assign it an appropriate sign + * depending on whether it lies in a masked region or not. */ + float signed_minimum_distance = sqrt(minimum_squared_distance) * (is_center_masked ? 1.0 : -1.0); + + /* Add the erode/dilate distance and divide by the inset amount as described in the discussion, + * then clamp to the [0, 1] range. */ + float value = clamp((signed_minimum_distance + distance) / inset, 0.0, 1.0); + + imageStore(output_img, texel, vec4(value)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_morphological_step.glsl b/source/blender/gpu/shaders/compositor/compositor_morphological_step.glsl new file mode 100644 index 00000000000..6992bc2afa5 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_morphological_step.glsl @@ -0,0 +1,19 @@ +#pragma BLENDER_REQUIRE(common_math_lib.glsl) +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* Find the minimum/maximum value in the window of the given radius around the pixel. This is + * essentially a morphological operator with a square structuring element. The LIMIT value should + * be FLT_MAX if OPERATOR is min and FLT_MIN if OPERATOR is max. */ + float value = LIMIT; + for (int i = -radius; i <= radius; i++) { + value = OPERATOR(value, texture_load(input_tx, texel + ivec2(i, 0), vec4(LIMIT)).x); + } + + /* Write the value using the transposed texel. See the execute_step_horizontal_pass method for + * more information on the rational behind this. */ + imageStore(output_img, texel.yx, vec4(value)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_projector_lens_distortion.glsl b/source/blender/gpu/shaders/compositor/compositor_projector_lens_distortion.glsl new file mode 100644 index 00000000000..ab44dac93e6 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_projector_lens_distortion.glsl @@ -0,0 +1,16 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* Get the normalized coordinates of the pixel centers. */ + vec2 normalized_texel = (vec2(texel) + vec2(0.5)) / vec2(texture_size(input_tx)); + + /* Sample the red and blue channels shifted by the dispersion amount. */ + const float red = texture(input_tx, normalized_texel + vec2(dispersion, 0.0)).r; + const float green = texture_load(input_tx, texel).g; + const float blue = texture(input_tx, normalized_texel - vec2(dispersion, 0.0)).b; + + imageStore(output_img, texel, vec4(red, green, blue, 1.0)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_realize_on_domain.glsl b/source/blender/gpu/shaders/compositor/compositor_realize_on_domain.glsl new file mode 100644 index 00000000000..b8561e5f059 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_realize_on_domain.glsl @@ -0,0 +1,29 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* Add 0.5 to evaluate the input sampler at the center of the pixel. */ + vec2 coordinates = vec2(texel) + vec2(0.5); + + /* Transform the input image by transforming the domain coordinates with the inverse of input + * image's transformation. The inverse transformation is an affine matrix and thus the + * coordinates should be in homogeneous coordinates. */ + coordinates = (mat3(inverse_transformation) * vec3(coordinates, 1.0)).xy; + + /* Since an input image with an identity transformation is supposed to be centered in the domain, + * we subtract the offset between the lower left corners of the input image and the domain, which + * is half the difference between their sizes, because the difference in size is on both sides of + * the centered image. Additionally, we floor the offset to retain the 0.5 offset added above in + * case the difference in sizes was odd. */ + ivec2 domain_size = imageSize(domain_img); + ivec2 input_size = texture_size(input_tx); + vec2 offset = floor((domain_size - input_size) / 2.0); + + /* Subtract the offset and divide by the input image size to get the relevant coordinates into + * the sampler's expected [0, 1] range. */ + vec2 normalized_coordinates = (coordinates - offset) / input_size; + + imageStore(domain_img, texel, texture(input_tx, normalized_coordinates)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_screen_lens_distortion.glsl b/source/blender/gpu/shaders/compositor/compositor_screen_lens_distortion.glsl new file mode 100644 index 00000000000..dc572ea5aaf --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_screen_lens_distortion.glsl @@ -0,0 +1,151 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_hash.glsl) +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +/* A model that approximates lens distortion parameterized by a distortion parameter and dependent + * on the squared distance to the center of the image. The distorted pixel is then computed as the + * scalar multiplication of the pixel coordinates with the value returned by this model. See the + * compute_distorted_uv function for more details. */ +float compute_distortion_scale(float distortion, float distance_squared) +{ + return 1.0 / (1.0 + sqrt(max(0.0, 1.0 - distortion * distance_squared))); +} + +/* A vectorized version of compute_distortion_scale that is applied on the chromatic distortion + * parameters passed to the shader. */ +vec3 compute_chromatic_distortion_scale(float distance_squared) +{ + return 1.0 / (1.0 + sqrt(max(vec3(0.0), 1.0 - chromatic_distortion * distance_squared))); +} + +/* Compute the image coordinates after distortion by the given distortion scale computed by the + * compute_distortion_scale function. Note that the function expects centered normalized UV + * coordinates but outputs non-centered image coordinates. */ +vec2 compute_distorted_uv(vec2 uv, float scale) +{ + return (uv * scale + 0.5) * texture_size(input_tx) - 0.5; +} + +/* Compute the number of integration steps that should be used to approximate the distorted pixel + * using a heuristic, see the compute_number_of_steps function for more details. The numbers of + * steps is proportional to the number of pixels spanned by the distortion amount. For jitter + * distortion, the square root of the distortion amount plus 1 is used with a minimum of 2 steps. + * For non-jitter distortion, the distortion amount plus 1 is used as the number of steps */ +int compute_number_of_integration_steps_heuristic(float distortion) +{ +#if defined(JITTER) + return distortion < 4.0 ? 2 : int(sqrt(distortion + 1.0)); +#else + return int(distortion + 1.0); +#endif +} + +/* Compute the number of integration steps that should be used to compute each channel of the + * distorted pixel. Each of the channels are distorted by their respective chromatic distortion + * amount, then the amount of distortion between each two consecutive channels is computed, this + * amount is then used to heuristically infer the number of needed integration steps, see the + * integrate_distortion function for more information. */ +ivec3 compute_number_of_integration_steps(vec2 uv, float distance_squared) +{ + /* Distort each channel by its respective chromatic distortion amount. */ + vec3 distortion_scale = compute_chromatic_distortion_scale(distance_squared); + vec2 distorted_uv_red = compute_distorted_uv(uv, distortion_scale.r); + vec2 distorted_uv_green = compute_distorted_uv(uv, distortion_scale.g); + vec2 distorted_uv_blue = compute_distorted_uv(uv, distortion_scale.b); + + /* Infer the number of needed integration steps to compute the distorted red channel starting + * from the green channel. */ + float distortion_red = distance(distorted_uv_red, distorted_uv_green); + int steps_red = compute_number_of_integration_steps_heuristic(distortion_red); + + /* Infer the number of needed integration steps to compute the distorted blue channel starting + * from the green channel. */ + float distortion_blue = distance(distorted_uv_green, distorted_uv_blue); + int steps_blue = compute_number_of_integration_steps_heuristic(distortion_blue); + + /* The number of integration steps used to compute the green channel is the sum of both the red + * and the blue channel steps because it is computed once with each of them. */ + return ivec3(steps_red, steps_red + steps_blue, steps_blue); +} + +/* Returns a random jitter amount, which is essentially a random value in the [0, 1] range. If + * jitter is not enabled, return a constant 0.5 value instead. */ +float get_jitter(int seed) +{ +#if defined(JITTER) + return hash_uint3_to_float(gl_GlobalInvocationID.x, gl_GlobalInvocationID.y, seed); +#else + return 0.5; +#endif +} + +/* Each color channel may have a different distortion with the guarantee that the red will have the + * lowest distortion while the blue will have the highest one. If each channel is distorted + * independently, the image will look disintegrated, with each channel seemingly merely shifted. + * Consequently, the distorted pixels needs to be computed by integrating along the path of change + * of distortion starting from one channel to another. For instance, to compute the distorted red + * from the distorted green, we accumulate the color of the distorted pixel starting from the + * distortion of the red, taking small steps until we reach the distortion of the green. The pixel + * color is weighted such that it is maximum at the start distortion and zero at the end distortion + * in an arithmetic progression. The integration steps can be augmented with random values to + * simulate lens jitter. Finally, it should be noted that this function integrates both the start + * and end channels in reverse directions for more efficient computation. */ +vec3 integrate_distortion(int start, int end, float distance_squared, vec2 uv, int steps) +{ + vec3 accumulated_color = vec3(0.0); + float distortion_amount = chromatic_distortion[end] - chromatic_distortion[start]; + for (int i = 0; i < steps; i++) { + /* The increment will be in the [0, 1) range across iterations. */ + float increment = (i + get_jitter(i)) / steps; + float distortion = chromatic_distortion[start] + increment * distortion_amount; + float distortion_scale = compute_distortion_scale(distortion, distance_squared); + + /* Sample the color at the distorted coordinates and accumulate it weighted by the increment + * value for both the start and end channels. */ + vec2 distorted_uv = compute_distorted_uv(uv, distortion_scale); + vec4 color = texture(input_tx, distorted_uv / texture_size(input_tx)); + accumulated_color[start] += (1.0 - increment) * color[start]; + accumulated_color[end] += increment * color[end]; + } + return accumulated_color; +} + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* Compute the UV image coordinates in the range [-1, 1] as well as the squared distance to the + * center of the image, which is at (0, 0) in the UV coordinates. */ + vec2 center = texture_size(input_tx) / 2.0; + vec2 uv = scale * (texel + 0.5 - center) / center; + float distance_squared = dot(uv, uv); + + /* If any of the color channels will get distorted outside of the screen beyond what is possible, + * write a zero transparent color and return. */ + if (any(greaterThan(chromatic_distortion * distance_squared, vec3(1.0)))) { + imageStore(output_img, texel, vec4(0.0)); + return; + } + + /* Compute the number of integration steps that should be used to compute each channel of the + * distorted pixel. */ + ivec3 number_of_steps = compute_number_of_integration_steps(uv, distance_squared); + + /* Integrate the distortion of the red and green, then the green and blue channels. That means + * the green will be integrated twice, but this is accounted for in the number of steps which the + * color will later be divided by. See the compute_number_of_integration_steps function for more + * details. */ + vec3 color = vec3(0.0); + color += integrate_distortion(0, 1, distance_squared, uv, number_of_steps.r); + color += integrate_distortion(1, 2, distance_squared, uv, number_of_steps.b); + + /* The integration above performed weighted accumulation, and thus the color needs to be divided + * by the sum of the weights. Assuming no jitter, the weights are generated as an arithmetic + * progression starting from (0.5 / n) to ((n - 0.5) / n) for n terms. The sum of an arithmetic + * progression can be computed as (n * (start + end) / 2), which when subsisting the start and + * end reduces to (n / 2). So the color should be multiplied by 2 / n. The jitter sequence + * approximately sums to the same value because it is a uniform random value whose mean value is + * 0.5, so the expression doesn't change regardless of jitter. */ + color *= 2.0 / vec3(number_of_steps); + + imageStore(output_img, texel, vec4(color, 1.0)); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_set_alpha.glsl b/source/blender/gpu/shaders/compositor/compositor_set_alpha.glsl new file mode 100644 index 00000000000..7dd40581790 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_set_alpha.glsl @@ -0,0 +1,8 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + vec4 color = vec4(texture_load(image_tx, texel).rgb, texture_load(alpha_tx, texel).x); + imageStore(output_img, texel, color); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_split_viewer.glsl b/source/blender/gpu/shaders/compositor/compositor_split_viewer.glsl new file mode 100644 index 00000000000..866b9045da2 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_split_viewer.glsl @@ -0,0 +1,14 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); +#if defined(SPLIT_HORIZONTAL) + bool condition = (view_size.x * split_ratio) < texel.x; +#elif defined(SPLIT_VERTICAL) + bool condition = (view_size.y * split_ratio) < texel.y; +#endif + vec4 color = condition ? texture_load(first_image_tx, texel) : + texture_load(second_image_tx, texel); + imageStore(output_img, texel, color); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_symmetric_blur.glsl b/source/blender/gpu/shaders/compositor/compositor_symmetric_blur.glsl new file mode 100644 index 00000000000..df08991a35c --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_symmetric_blur.glsl @@ -0,0 +1,77 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_blur_common.glsl) +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +vec4 load_input(ivec2 texel) +{ + vec4 color; + if (extend_bounds) { + /* If bounds are extended, then we treat the input as padded by a radius amount of pixels. So + * we load the input with an offset by the radius amount and fallback to a transparent color if + * it is out of bounds. Notice that we subtract 1 because the weights texture have an extra + * center weight, see the SymmetricBlurWeights for more information. */ + ivec2 blur_size = texture_size(weights_tx) - 1; + color = texture_load(input_tx, texel - blur_size, vec4(0.0)); + } + else { + color = texture_load(input_tx, texel); + } + + if (gamma_correct) { + color = gamma_correct_blur_input(color); + } + + return color; +} + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + vec4 accumulated_color = vec4(0.0); + + /* First, compute the contribution of the center pixel. */ + vec4 center_color = load_input(texel); + accumulated_color += center_color * texture_load(weights_tx, ivec2(0)).x; + + ivec2 weights_size = texture_size(weights_tx); + + /* Then, compute the contributions of the pixels along the x axis of the filter, noting that the + * weights texture only stores the weights for the positive half, but since the filter is + * symmetric, the same weight is used for the negative half and we add both of their + * contributions. */ + for (int x = 1; x < weights_size.x; x++) { + float weight = texture_load(weights_tx, ivec2(x, 0)).x; + accumulated_color += load_input(texel + ivec2(x, 0)) * weight; + accumulated_color += load_input(texel + ivec2(-x, 0)) * weight; + } + + /* Then, compute the contributions of the pixels along the y axis of the filter, noting that the + * weights texture only stores the weights for the positive half, but since the filter is + * symmetric, the same weight is used for the negative half and we add both of their + * contributions. */ + for (int y = 1; y < weights_size.y; y++) { + float weight = texture_load(weights_tx, ivec2(0, y)).x; + accumulated_color += load_input(texel + ivec2(0, y)) * weight; + accumulated_color += load_input(texel + ivec2(0, -y)) * weight; + } + + /* Finally, compute the contributions of the pixels in the four quadrants of the filter, noting + * that the weights texture only stores the weights for the upper right quadrant, but since the + * filter is symmetric, the same weight is used for the rest of the quadrants and we add all four + * of their contributions. */ + for (int y = 1; y < weights_size.y; y++) { + for (int x = 1; x < weights_size.x; x++) { + float weight = texture_load(weights_tx, ivec2(x, y)).x; + accumulated_color += load_input(texel + ivec2(x, y)) * weight; + accumulated_color += load_input(texel + ivec2(-x, y)) * weight; + accumulated_color += load_input(texel + ivec2(x, -y)) * weight; + accumulated_color += load_input(texel + ivec2(-x, -y)) * weight; + } + } + + if (gamma_correct) { + accumulated_color = gamma_uncorrect_blur_output(accumulated_color); + } + + imageStore(output_img, texel, accumulated_color); +} diff --git a/source/blender/gpu/shaders/compositor/compositor_symmetric_separable_blur.glsl b/source/blender/gpu/shaders/compositor/compositor_symmetric_separable_blur.glsl new file mode 100644 index 00000000000..ab0c7baa787 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/compositor_symmetric_separable_blur.glsl @@ -0,0 +1,53 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_blur_common.glsl) +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +vec4 load_input(ivec2 texel) +{ + vec4 color; + if (extend_bounds) { + /* If bounds are extended, then we treat the input as padded by a radius amount of pixels. So + * we load the input with an offset by the radius amount and fallback to a transparent color if + * it is out of bounds. Notice that we subtract 1 because the weights texture have an extra + * center weight, see the SymmetricSeparableBlurWeights for more information. */ + int blur_size = texture_size(weights_tx) - 1; + color = texture_load(input_tx, texel - ivec2(blur_size, 0), vec4(0.0)); + } + else { + color = texture_load(input_tx, texel); + } + + if (gamma_correct_input) { + color = gamma_correct_blur_input(color); + } + + return color; +} + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + vec4 accumulated_color = vec4(0.0); + + /* First, compute the contribution of the center pixel. */ + vec4 center_color = load_input(texel); + accumulated_color += center_color * texture_load(weights_tx, 0).x; + + /* Then, compute the contributions of the pixel to the right and left, noting that the + * weights texture only stores the weights for the positive half, but since the filter is + * symmetric, the same weight is used for the negative half and we add both of their + * contributions. */ + for (int i = 1; i < texture_size(weights_tx); i++) { + float weight = texture_load(weights_tx, i).x; + accumulated_color += load_input(texel + ivec2(i, 0)) * weight; + accumulated_color += load_input(texel + ivec2(-i, 0)) * weight; + } + + if (gamma_uncorrect_output) { + accumulated_color = gamma_uncorrect_blur_output(accumulated_color); + } + + /* Write the color using the transposed texel. See the execute_separable_blur_horizontal_pass + * method for more information on the rational behind this. */ + imageStore(output_img, texel.yx, accumulated_color); +} diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_alpha_crop_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_alpha_crop_info.hh new file mode 100644 index 00000000000..11f2f329cd8 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_alpha_crop_info.hh @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_alpha_crop) + .local_group_size(16, 16) + .push_constant(Type::IVEC2, "lower_bound") + .push_constant(Type::IVEC2, "upper_bound") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_alpha_crop.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_bilateral_blur_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_bilateral_blur_info.hh new file mode 100644 index 00000000000..301cd6acd9e --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_bilateral_blur_info.hh @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_bilateral_blur) + .local_group_size(16, 16) + .push_constant(Type::INT, "radius") + .push_constant(Type::FLOAT, "threshold") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .sampler(1, ImageType::FLOAT_2D, "determinator_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_bilateral_blur.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_blur_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_blur_info.hh new file mode 100644 index 00000000000..36b772aa486 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_blur_info.hh @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_blur) + .local_group_size(16, 16) + .push_constant(Type::INT, "radius") + .push_constant(Type::BOOL, "extend_bounds") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .sampler(1, ImageType::FLOAT_2D, "weights_tx") + .sampler(2, ImageType::FLOAT_2D, "mask_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_blur.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_bokeh_image_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_bokeh_image_info.hh new file mode 100644 index 00000000000..3541de53070 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_bokeh_image_info.hh @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_bokeh_image) + .local_group_size(16, 16) + .push_constant(Type::FLOAT, "exterior_angle") + .push_constant(Type::FLOAT, "rotation") + .push_constant(Type::FLOAT, "roundness") + .push_constant(Type::FLOAT, "catadioptric") + .push_constant(Type::FLOAT, "lens_shift") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_bokeh_image.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_box_mask_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_box_mask_info.hh new file mode 100644 index 00000000000..ecb253bbab1 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_box_mask_info.hh @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_box_mask_shared) + .local_group_size(16, 16) + .push_constant(Type::IVEC2, "domain_size") + .push_constant(Type::VEC2, "location") + .push_constant(Type::VEC2, "size") + .push_constant(Type::FLOAT, "cos_angle") + .push_constant(Type::FLOAT, "sin_angle") + .sampler(0, ImageType::FLOAT_2D, "base_mask_tx") + .sampler(1, ImageType::FLOAT_2D, "mask_value_tx") + .image(0, GPU_R16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_mask_img") + .compute_source("compositor_box_mask.glsl"); + +GPU_SHADER_CREATE_INFO(compositor_box_mask_add) + .additional_info("compositor_box_mask_shared") + .define("CMP_NODE_MASKTYPE_ADD") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_box_mask_subtract) + .additional_info("compositor_box_mask_shared") + .define("CMP_NODE_MASKTYPE_SUBTRACT") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_box_mask_multiply) + .additional_info("compositor_box_mask_shared") + .define("CMP_NODE_MASKTYPE_MULTIPLY") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_box_mask_not) + .additional_info("compositor_box_mask_shared") + .define("CMP_NODE_MASKTYPE_NOT") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_convert_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_convert_info.hh new file mode 100644 index 00000000000..35e60056736 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_convert_info.hh @@ -0,0 +1,69 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_convert_shared) + .local_group_size(16, 16) + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .typedef_source("gpu_shader_compositor_type_conversion.glsl") + .compute_source("compositor_convert.glsl"); + +GPU_SHADER_CREATE_INFO(compositor_convert_float_to_vector) + .additional_info("compositor_convert_shared") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .define("CONVERT_EXPRESSION(value)", "vec4(vec3_from_float(value.x), 0.0)") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_convert_float_to_color) + .additional_info("compositor_convert_shared") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .define("CONVERT_EXPRESSION(value)", "vec4_from_float(value.x)") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_convert_color_to_float) + .additional_info("compositor_convert_shared") + .image(0, GPU_R16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .define("CONVERT_EXPRESSION(value)", "vec4(float_from_vec4(value), vec3(0.0))") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_convert_color_to_vector) + .additional_info("compositor_convert_shared") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .define("CONVERT_EXPRESSION(value)", "vec4(vec3_from_vec4(value), 0.0)") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_convert_vector_to_float) + .additional_info("compositor_convert_shared") + .image(0, GPU_R16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .define("CONVERT_EXPRESSION(value)", "vec4(float_from_vec3(value.xyz), vec3(0.0))") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_convert_vector_to_color) + .additional_info("compositor_convert_shared") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .define("CONVERT_EXPRESSION(value)", "vec4_from_vec3(value.xyz)") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_extract_alpha_from_color) + .additional_info("compositor_convert_shared") + .image(0, GPU_R16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .define("CONVERT_EXPRESSION(value)", "vec4(value.a, vec3(0.0))") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_convert_color_to_half_color) + .additional_info("compositor_convert_shared") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .define("CONVERT_EXPRESSION(value)", "value") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_convert_float_to_half_float) + .additional_info("compositor_convert_shared") + .image(0, GPU_R16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .define("CONVERT_EXPRESSION(value)", "vec4(value.r, vec3(0.0))") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_convert_color_to_opaque) + .additional_info("compositor_convert_shared") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .define("CONVERT_EXPRESSION(value)", "vec4(value.rgb, 1.0)") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_despeckle_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_despeckle_info.hh new file mode 100644 index 00000000000..df86c3a8258 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_despeckle_info.hh @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_despeckle) + .local_group_size(16, 16) + .push_constant(Type::FLOAT, "threshold") + .push_constant(Type::FLOAT, "neighbor_threshold") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .sampler(1, ImageType::FLOAT_2D, "factor_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_despeckle.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_directional_blur_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_directional_blur_info.hh new file mode 100644 index 00000000000..bb9199dcd26 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_directional_blur_info.hh @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_directional_blur) + .local_group_size(16, 16) + .push_constant(Type::INT, "iterations") + .push_constant(Type::MAT4, "inverse_transformation") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_directional_blur.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_edge_filter_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_edge_filter_info.hh new file mode 100644 index 00000000000..916ec62bdba --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_edge_filter_info.hh @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_edge_filter) + .local_group_size(16, 16) + .push_constant(Type::MAT4, "kernel") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .sampler(1, ImageType::FLOAT_2D, "factor_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_edge_filter.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_ellipse_mask_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_ellipse_mask_info.hh new file mode 100644 index 00000000000..52db91c94e5 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_ellipse_mask_info.hh @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_ellipse_mask_shared) + .local_group_size(16, 16) + .push_constant(Type::IVEC2, "domain_size") + .push_constant(Type::VEC2, "location") + .push_constant(Type::VEC2, "radius") + .push_constant(Type::FLOAT, "cos_angle") + .push_constant(Type::FLOAT, "sin_angle") + .sampler(0, ImageType::FLOAT_2D, "base_mask_tx") + .sampler(1, ImageType::FLOAT_2D, "mask_value_tx") + .image(0, GPU_R16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_mask_img") + .compute_source("compositor_ellipse_mask.glsl"); + +GPU_SHADER_CREATE_INFO(compositor_ellipse_mask_add) + .additional_info("compositor_ellipse_mask_shared") + .define("CMP_NODE_MASKTYPE_ADD") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_ellipse_mask_subtract) + .additional_info("compositor_ellipse_mask_shared") + .define("CMP_NODE_MASKTYPE_SUBTRACT") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_ellipse_mask_multiply) + .additional_info("compositor_ellipse_mask_shared") + .define("CMP_NODE_MASKTYPE_MULTIPLY") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_ellipse_mask_not) + .additional_info("compositor_ellipse_mask_shared") + .define("CMP_NODE_MASKTYPE_NOT") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_filter_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_filter_info.hh new file mode 100644 index 00000000000..9d565cf4b8a --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_filter_info.hh @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_filter) + .local_group_size(16, 16) + .push_constant(Type::MAT4, "kernel") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .sampler(1, ImageType::FLOAT_2D, "factor_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_filter.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_flip_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_flip_info.hh new file mode 100644 index 00000000000..db831518cb7 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_flip_info.hh @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_flip) + .local_group_size(16, 16) + .push_constant(Type::BOOL, "flip_x") + .push_constant(Type::BOOL, "flip_y") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_flip.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_image_crop_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_image_crop_info.hh new file mode 100644 index 00000000000..e7736744c40 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_image_crop_info.hh @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_image_crop) + .local_group_size(16, 16) + .push_constant(Type::IVEC2, "lower_bound") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_image_crop.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_morphological_distance_feather_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_morphological_distance_feather_info.hh new file mode 100644 index 00000000000..9f17f60129d --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_morphological_distance_feather_info.hh @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_morphological_distance_feather_shared) + .local_group_size(16, 16) + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .sampler(1, ImageType::FLOAT_1D, "weights_tx") + .sampler(2, ImageType::FLOAT_1D, "falloffs_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_morphological_distance_feather.glsl"); + +GPU_SHADER_CREATE_INFO(compositor_morphological_distance_feather_dilate) + .additional_info("compositor_morphological_distance_feather_shared") + .define("COMPARE(x, y)", "x > y") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_morphological_distance_feather_erode) + .additional_info("compositor_morphological_distance_feather_shared") + .define("COMPARE(x, y)", "x < y") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_morphological_distance_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_morphological_distance_info.hh new file mode 100644 index 00000000000..fc960e119e5 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_morphological_distance_info.hh @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_morphological_distance_shared) + .local_group_size(16, 16) + .push_constant(Type::INT, "radius") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .image(0, GPU_R16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_morphological_distance.glsl"); + +GPU_SHADER_CREATE_INFO(compositor_morphological_distance_dilate) + .additional_info("compositor_morphological_distance_shared") + .define("OPERATOR(a, b)", "max(a, b)") + .define("LIMIT", "FLT_MIN") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_morphological_distance_erode) + .additional_info("compositor_morphological_distance_shared") + .define("OPERATOR(a, b)", "min(a, b)") + .define("LIMIT", "FLT_MAX") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_morphological_distance_threshold_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_morphological_distance_threshold_info.hh new file mode 100644 index 00000000000..b1d64f61b80 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_morphological_distance_threshold_info.hh @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_morphological_distance_threshold) + .local_group_size(16, 16) + .push_constant(Type::INT, "radius") + .push_constant(Type::INT, "distance") + .push_constant(Type::FLOAT, "inset") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .image(0, GPU_R16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_morphological_distance_threshold.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_morphological_step_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_morphological_step_info.hh new file mode 100644 index 00000000000..e97ffd9feea --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_morphological_step_info.hh @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_morphological_step_shared) + .local_group_size(16, 16) + .push_constant(Type::INT, "radius") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .image(0, GPU_R16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_morphological_step.glsl"); + +GPU_SHADER_CREATE_INFO(compositor_morphological_step_dilate) + .additional_info("compositor_morphological_step_shared") + .define("OPERATOR(a, b)", "max(a, b)") + .define("LIMIT", "FLT_MIN") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_morphological_step_erode) + .additional_info("compositor_morphological_step_shared") + .define("OPERATOR(a, b)", "min(a, b)") + .define("LIMIT", "FLT_MAX") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_projector_lens_distortion_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_projector_lens_distortion_info.hh new file mode 100644 index 00000000000..98fe1731703 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_projector_lens_distortion_info.hh @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_projector_lens_distortion) + .local_group_size(16, 16) + .push_constant(Type::FLOAT, "dispersion") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_projector_lens_distortion.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_realize_on_domain_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_realize_on_domain_info.hh new file mode 100644 index 00000000000..4528649ae98 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_realize_on_domain_info.hh @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_realize_on_domain_shared) + .local_group_size(16, 16) + .push_constant(Type::MAT4, "inverse_transformation") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .compute_source("compositor_realize_on_domain.glsl"); + +GPU_SHADER_CREATE_INFO(compositor_realize_on_domain_color) + .additional_info("compositor_realize_on_domain_shared") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "domain_img") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_realize_on_domain_vector) + .additional_info("compositor_realize_on_domain_shared") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "domain_img") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_realize_on_domain_float) + .additional_info("compositor_realize_on_domain_shared") + .image(0, GPU_R16F, Qualifier::WRITE, ImageType::FLOAT_2D, "domain_img") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_screen_lens_distortion_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_screen_lens_distortion_info.hh new file mode 100644 index 00000000000..c42f2b328d4 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_screen_lens_distortion_info.hh @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_screen_lens_distortion_shared) + .local_group_size(16, 16) + .push_constant(Type::VEC3, "chromatic_distortion") + .push_constant(Type::FLOAT, "scale") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_screen_lens_distortion.glsl"); + +GPU_SHADER_CREATE_INFO(compositor_screen_lens_distortion) + .additional_info("compositor_screen_lens_distortion_shared") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_screen_lens_distortion_jitter) + .additional_info("compositor_screen_lens_distortion_shared") + .define("JITTER") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_set_alpha_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_set_alpha_info.hh new file mode 100644 index 00000000000..ca28194e921 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_set_alpha_info.hh @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_set_alpha) + .local_group_size(16, 16) + .sampler(0, ImageType::FLOAT_2D, "image_tx") + .sampler(1, ImageType::FLOAT_2D, "alpha_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_set_alpha.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_split_viewer_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_split_viewer_info.hh new file mode 100644 index 00000000000..d5793b0ce59 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_split_viewer_info.hh @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_split_viewer_shared) + .local_group_size(16, 16) + .push_constant(Type::FLOAT, "split_ratio") + .push_constant(Type::IVEC2, "view_size") + .sampler(0, ImageType::FLOAT_2D, "first_image_tx") + .sampler(1, ImageType::FLOAT_2D, "second_image_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_split_viewer.glsl"); + +GPU_SHADER_CREATE_INFO(compositor_split_viewer_horizontal) + .additional_info("compositor_split_viewer_shared") + .define("SPLIT_HORIZONTAL") + .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(compositor_split_viewer_vertical) + .additional_info("compositor_split_viewer_shared") + .define("SPLIT_VERTICAL") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_symmetric_blur_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_symmetric_blur_info.hh new file mode 100644 index 00000000000..8ba2b4e04ef --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_symmetric_blur_info.hh @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_symmetric_blur) + .local_group_size(16, 16) + .push_constant(Type::BOOL, "extend_bounds") + .push_constant(Type::BOOL, "gamma_correct") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .sampler(1, ImageType::FLOAT_2D, "weights_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_symmetric_blur.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/infos/compositor_symmetric_separable_blur_info.hh b/source/blender/gpu/shaders/compositor/infos/compositor_symmetric_separable_blur_info.hh new file mode 100644 index 00000000000..57247dba4b8 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/infos/compositor_symmetric_separable_blur_info.hh @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "gpu_shader_create_info.hh" + +GPU_SHADER_CREATE_INFO(compositor_symmetric_separable_blur) + .local_group_size(16, 16) + .push_constant(Type::BOOL, "extend_bounds") + .push_constant(Type::BOOL, "gamma_correct_input") + .push_constant(Type::BOOL, "gamma_uncorrect_output") + .sampler(0, ImageType::FLOAT_2D, "input_tx") + .sampler(1, ImageType::FLOAT_1D, "weights_tx") + .image(0, GPU_RGBA16F, Qualifier::WRITE, ImageType::FLOAT_2D, "output_img") + .compute_source("compositor_symmetric_separable_blur.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_alpha_over.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_alpha_over.glsl new file mode 100644 index 00000000000..8e3e033147f --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_alpha_over.glsl @@ -0,0 +1,48 @@ +void node_composite_alpha_over_mixed( + float factor, vec4 color, vec4 over_color, float premultiply_factor, out vec4 result) +{ + if (over_color.a <= 0.0) { + result = color; + } + else if (factor == 1.0 && over_color.a >= 1.0) { + result = over_color; + } + else { + float add_factor = 1.0 - premultiply_factor + over_color.a * premultiply_factor; + float premultiplier = factor * add_factor; + float multiplier = 1.0 - factor * over_color.a; + + result = multiplier * color + vec2(premultiplier, factor).xxxy * over_color; + } +} + +void node_composite_alpha_over_key(float factor, vec4 color, vec4 over_color, out vec4 result) +{ + if (over_color.a <= 0.0) { + result = color; + } + else if (factor == 1.0 && over_color.a >= 1.0) { + result = over_color; + } + else { + result = mix(color, vec4(over_color.rgb, 1.0), factor * over_color.a); + } +} + +void node_composite_alpha_over_premultiply(float factor, + vec4 color, + vec4 over_color, + out vec4 result) +{ + if (over_color.a < 0.0) { + result = color; + } + else if (factor == 1.0 && over_color.a >= 1.0) { + result = over_color; + } + else { + float multiplier = 1.0 - factor * over_color.a; + + result = multiplier * color + factor * over_color; + } +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_blur_common.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_blur_common.glsl new file mode 100644 index 00000000000..e404c03bbb0 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_blur_common.glsl @@ -0,0 +1,32 @@ +/* Preprocess the input of the blur filter by squaring it in its alpha straight form, assuming the + * given color is alpha premultiplied. */ +vec4 gamma_correct_blur_input(vec4 color) +{ + /* Unpremultiply alpha. */ + color.rgb /= color.a > 0.0 ? color.a : 1.0; + + /* Square color channel if it is positive, otherwise zero it. */ + color.rgb *= mix(color.rgb, vec3(0.0), lessThan(color.rgb, vec3(0.0))); + + /* Premultiply alpha to undo previous alpha unpremultiplication. */ + color.rgb *= color.a > 0.0 ? color.a : 1.0; + + return color; +} + +/* Postprocess the output of the blur filter by taking its square root it in its alpha straight + * form, assuming the given color is alpha premultiplied. This essential undoes the processing done + * by the gamma_correct_blur_input function. */ +vec4 gamma_uncorrect_blur_output(vec4 color) +{ + /* Unpremultiply alpha. */ + color.rgb /= color.a > 0.0 ? color.a : 1.0; + + /* Take the square root of the color channel if it is positive, otherwise zero it. */ + color.rgb = mix(sqrt(color.rgb), vec3(0.0), lessThan(color.rgb, vec3(0.0))); + + /* Premultiply alpha to undo previous alpha unpremultiplication. */ + color.rgb *= color.a > 0.0 ? color.a : 1.0; + + return color; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_bright_contrast.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_bright_contrast.glsl new file mode 100644 index 00000000000..ce71b4fd8a4 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_bright_contrast.glsl @@ -0,0 +1,38 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +/* The algorithm is by Werner D. Streidt + * (http://visca.com/ffactory/archives/5-99/msg00021.html) + * Extracted of OpenCV demhist.c + */ + +#define FLT_EPSILON 1.192092896e-07F + +void node_composite_bright_contrast( + vec4 color, float brightness, float contrast, const float use_premultiply, out vec4 result) +{ + brightness /= 100.0; + float delta = contrast / 200.0; + + float multiplier, offset; + if (contrast > 0.0) { + multiplier = 1.0 - delta * 2.0; + multiplier = 1.0 / max(multiplier, FLT_EPSILON); + offset = multiplier * (brightness - delta); + } + else { + delta *= -1.0; + multiplier = max(1.0 - delta * 2.0, 0.0); + offset = multiplier * brightness + delta; + } + + if (use_premultiply != 0.0) { + color_alpha_unpremultiply(color, color); + } + + result.rgb = color.rgb * multiplier + offset; + result.a = color.a; + + if (use_premultiply != 0.0) { + color_alpha_premultiply(result, result); + } +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_channel_matte.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_channel_matte.glsl new file mode 100644 index 00000000000..f2dcc9543f2 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_channel_matte.glsl @@ -0,0 +1,52 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +#define CMP_NODE_CHANNEL_MATTE_CS_RGB 1.0 +#define CMP_NODE_CHANNEL_MATTE_CS_HSV 2.0 +#define CMP_NODE_CHANNEL_MATTE_CS_YUV 3.0 +#define CMP_NODE_CHANNEL_MATTE_CS_YCC 4.0 + +void node_composite_channel_matte(vec4 color, + const float color_space, + const float matte_channel, + const vec2 limit_channels, + float max_limit, + float min_limit, + out vec4 result, + out float matte) +{ + vec4 channels; + if (color_space == CMP_NODE_CHANNEL_MATTE_CS_HSV) { + rgb_to_hsv(color, channels); + } + else if (color_space == CMP_NODE_CHANNEL_MATTE_CS_YUV) { + rgba_to_yuva_itu_709(color, channels); + } + else if (color_space == CMP_NODE_CHANNEL_MATTE_CS_YCC) { + rgba_to_ycca_itu_709(color, channels); + } + else { + channels = color; + } + + float matte_value = channels[int(matte_channel)]; + float limit_value = max(channels[int(limit_channels.x)], channels[int(limit_channels.y)]); + + float alpha = 1.0 - (matte_value - limit_value); + if (alpha > max_limit) { + alpha = color.a; + } + else if (alpha < min_limit) { + alpha = 0.0; + } + else { + alpha = (alpha - min_limit) / (max_limit - min_limit); + } + + matte = min(alpha, color.a); + result = color * matte; +} + +#undef CMP_NODE_CHANNEL_MATTE_CS_RGB +#undef CMP_NODE_CHANNEL_MATTE_CS_HSV +#undef CMP_NODE_CHANNEL_MATTE_CS_YUV +#undef CMP_NODE_CHANNEL_MATTE_CS_YCC diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_chroma_matte.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_chroma_matte.glsl new file mode 100644 index 00000000000..5d6bea0c9db --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_chroma_matte.glsl @@ -0,0 +1,43 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_math_utils.glsl) +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +/* Algorithm from the book Video Demystified. Chapter 7. Chroma Keying. */ +void node_composite_chroma_matte(vec4 color, + vec4 key, + float acceptance, + float cutoff, + float falloff, + out vec4 result, + out float matte) +{ + vec4 color_ycca; + rgba_to_ycca_itu_709(color, color_ycca); + vec4 key_ycca; + rgba_to_ycca_itu_709(key, key_ycca); + + /* Normalize the CrCb components into the [-1, 1] range. */ + vec2 color_cc = color_ycca.yz * 2.0 - 1.0; + vec2 key_cc = key_ycca.yz * 2.0 - 1.0; + + /* Rotate the color onto the space of the key such that x axis of the color space passes through + * the key color. */ + color_cc = vector_to_rotation_matrix(key_cc * vec2(1.0, -1.0)) * color_cc; + + /* Compute foreground key. If positive, the value is in the [0, 1] range. */ + float foreground_key = color_cc.x - (abs(color_cc.y) / acceptance); + + /* Negative foreground key values retain the original alpha. Positive values are scaled by the + * falloff, while colors that make an angle less than the cutoff angle get a zero alpha. */ + float alpha = color.a; + if (foreground_key > 0.0) { + alpha = 1.0 - (foreground_key / falloff); + + if (abs(atan(color_cc.y, color_cc.x)) < (cutoff / 2.0)) { + alpha = 0.0; + } + } + + /* Compute output. */ + matte = min(alpha, color.a); + result = color * matte; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_balance.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_balance.glsl new file mode 100644 index 00000000000..bffb94cdedb --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_balance.glsl @@ -0,0 +1,34 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +void node_composite_color_balance_lgg( + float factor, vec4 color, vec3 lift, vec3 gamma, vec3 gain, out vec4 result) +{ + lift = 2.0 - lift; + vec3 srgb_color = linear_rgb_to_srgb(color.rgb); + vec3 lift_balanced = ((srgb_color - 1.0) * lift) + 1.0; + + vec3 gain_balanced = lift_balanced * gain; + gain_balanced = max(gain_balanced, vec3(0.0)); + + vec3 linear_color = srgb_to_linear_rgb(gain_balanced); + gamma = mix(gamma, vec3(1e-6), equal(gamma, vec3(0.0))); + vec3 gamma_balanced = pow(linear_color, 1.0 / gamma); + + result.rgb = mix(color.rgb, gamma_balanced, min(factor, 1.0)); + result.a = color.a; +} + +void node_composite_color_balance_asc_cdl(float factor, + vec4 color, + vec3 offset, + vec3 power, + vec3 slope, + float offset_basis, + out vec4 result) +{ + offset += offset_basis; + vec3 balanced = color.rgb * slope + offset; + balanced = pow(max(balanced, vec3(0.0)), power); + result.rgb = mix(color.rgb, balanced, min(factor, 1.0)); + result.a = color.a; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_correction.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_correction.glsl new file mode 100644 index 00000000000..9b4858f03be --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_correction.glsl @@ -0,0 +1,87 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_math_utils.glsl) +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +void node_composite_color_correction(vec4 color, + float mask, + const vec3 enabled_channels, + float start_midtones, + float end_midtones, + float master_saturation, + float master_contrast, + float master_gamma, + float master_gain, + float master_lift, + float shadows_saturation, + float shadows_contrast, + float shadows_gamma, + float shadows_gain, + float shadows_lift, + float midtones_saturation, + float midtones_contrast, + float midtones_gamma, + float midtones_gain, + float midtones_lift, + float highlights_saturation, + float highlights_contrast, + float highlights_gamma, + float highlights_gain, + float highlights_lift, + const vec3 luminance_coefficients, + out vec4 result) +{ + const float margin = 0.10; + const float margin_divider = 0.5 / margin; + float level = (color.r + color.g + color.b) / 3.0; + float level_shadows = 0.0; + float level_midtones = 0.0; + float level_highlights = 0.0; + if (level < (start_midtones - margin)) { + level_shadows = 1.0; + } + else if (level < (start_midtones + margin)) { + level_midtones = ((level - start_midtones) * margin_divider) + 0.5; + level_shadows = 1.0 - level_midtones; + } + else if (level < (end_midtones - margin)) { + level_midtones = 1.0; + } + else if (level < (end_midtones + margin)) { + level_highlights = ((level - end_midtones) * margin_divider) + 0.5; + level_midtones = 1.0 - level_highlights; + } + else { + level_highlights = 1.0; + } + + float contrast = level_shadows * shadows_contrast; + contrast += level_midtones * midtones_contrast; + contrast += level_highlights * highlights_contrast; + contrast *= master_contrast; + float saturation = level_shadows * shadows_saturation; + saturation += level_midtones * midtones_saturation; + saturation += level_highlights * highlights_saturation; + saturation *= master_saturation; + float gamma = level_shadows * shadows_gamma; + gamma += level_midtones * midtones_gamma; + gamma += level_highlights * highlights_gamma; + gamma *= master_gamma; + float gain = level_shadows * shadows_gain; + gain += level_midtones * midtones_gain; + gain += level_highlights * highlights_gain; + gain *= master_gain; + float lift = level_shadows * shadows_lift; + lift += level_midtones * midtones_lift; + lift += level_highlights * highlights_lift; + lift += master_lift; + + float inverse_gamma = 1.0 / gamma; + float luma = get_luminance(color.rgb, luminance_coefficients); + + vec3 corrected = luma + saturation * (color.rgb - luma); + corrected = 0.5 + (corrected - 0.5) * contrast; + corrected = fallback_pow(corrected * gain + lift, inverse_gamma, corrected); + corrected = mix(color.rgb, corrected, min(mask, 1.0)); + + result.rgb = mix(corrected, color.rgb, equal(enabled_channels, vec3(0.0))); + result.a = color.a; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_matte.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_matte.glsl new file mode 100644 index 00000000000..038471bc1bc --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_matte.glsl @@ -0,0 +1,27 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +void node_composite_color_matte(vec4 color, + vec4 key, + float hue_epsilon, + float saturation_epsilon, + float value_epsilon, + out vec4 result, + out float matte) + +{ + vec4 color_hsva; + rgb_to_hsv(color, color_hsva); + vec4 key_hsva; + rgb_to_hsv(key, key_hsva); + + bool is_within_saturation = distance(color_hsva.y, key_hsva.y) < saturation_epsilon; + bool is_within_value = distance(color_hsva.z, key_hsva.z) < value_epsilon; + bool is_within_hue = distance(color_hsva.x, key_hsva.x) < hue_epsilon; + /* Hue wraps around, so check the distance around the boundary. */ + float min_hue = min(color_hsva.x, key_hsva.x); + float max_hue = max(color_hsva.x, key_hsva.x); + is_within_hue = is_within_hue || ((min_hue + (1.0 - max_hue)) < hue_epsilon); + + matte = (is_within_hue && is_within_saturation && is_within_value) ? 0.0 : color.a; + result = color * matte; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_spill.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_spill.glsl new file mode 100644 index 00000000000..0adad53ad80 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_spill.glsl @@ -0,0 +1,13 @@ +void node_composite_color_spill(vec4 color, + float factor, + const float spill_channel, + vec3 spill_scale, + const vec2 limit_channels, + float limit_scale, + out vec4 result) +{ + float average_limit = (color[int(limit_channels.x)] + color[int(limit_channels.y)]) / 2.0; + float map = factor * color[int(spill_channel)] - limit_scale * average_limit; + result.rgb = map > 0.0 ? color.rgb + spill_scale * map : color.rgb; + result.a = color.a; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_to_luminance.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_to_luminance.glsl new file mode 100644 index 00000000000..bcdd625bd4f --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_color_to_luminance.glsl @@ -0,0 +1,6 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +void color_to_luminance(vec4 color, const vec3 luminance_coefficients, out float result) +{ + result = get_luminance(color.rgb, luminance_coefficients); +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_difference_matte.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_difference_matte.glsl new file mode 100644 index 00000000000..d769cadce3c --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_difference_matte.glsl @@ -0,0 +1,10 @@ +void node_composite_difference_matte( + vec4 color, vec4 key, float tolerance, float falloff, out vec4 result, out float matte) +{ + vec4 difference = abs(color - key); + float average_difference = (difference.r + difference.g + difference.b) / 3.0; + bool is_opaque = average_difference > tolerance + falloff; + float alpha = is_opaque ? color.a : (max(0.0, average_difference - tolerance) / falloff); + matte = min(alpha, color.a); + result = color * matte; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_distance_matte.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_distance_matte.glsl new file mode 100644 index 00000000000..9beed66826c --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_distance_matte.glsl @@ -0,0 +1,26 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +void node_composite_distance_matte_rgba( + vec4 color, vec4 key, float tolerance, float falloff, out vec4 result, out float matte) +{ + float difference = distance(color.rgb, key.rgb); + bool is_opaque = difference > tolerance + falloff; + float alpha = is_opaque ? color.a : max(0.0, difference - tolerance) / falloff; + matte = min(alpha, color.a); + result = color * matte; +} + +void node_composite_distance_matte_ycca( + vec4 color, vec4 key, float tolerance, float falloff, out vec4 result, out float matte) +{ + vec4 color_ycca; + rgba_to_ycca_itu_709(color, color_ycca); + vec4 key_ycca; + rgba_to_ycca_itu_709(key, key_ycca); + + float difference = distance(color_ycca.yz, key_ycca.yz); + bool is_opaque = difference > tolerance + falloff; + float alpha = is_opaque ? color.a : max(0.0, difference - tolerance) / falloff; + matte = min(alpha, color.a); + result = color * matte; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_exposure.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_exposure.glsl new file mode 100644 index 00000000000..f246635a91e --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_exposure.glsl @@ -0,0 +1,6 @@ +void node_composite_exposure(vec4 color, float exposure, out vec4 result) +{ + float multiplier = exp2(exposure); + result.rgb = color.rgb * multiplier; + result.a = color.a; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_gamma.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_gamma.glsl new file mode 100644 index 00000000000..53070d4b0e2 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_gamma.glsl @@ -0,0 +1,7 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_math_utils.glsl) + +void node_composite_gamma(vec4 color, float gamma, out vec4 result) +{ + result.rgb = fallback_pow(color.rgb, gamma, color.rgb); + result.a = color.a; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_hue_correct.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_hue_correct.glsl new file mode 100644 index 00000000000..99eb125cdf2 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_hue_correct.glsl @@ -0,0 +1,39 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +/* Curve maps are stored in sampler objects that are evaluated in the [0, 1] range, so normalize + * parameters accordingly. */ +#define NORMALIZE_PARAMETER(parameter, minimum, range) ((parameter - minimum) * range) + +void node_composite_hue_correct(float factor, + vec4 color, + sampler1DArray curve_map, + const float layer, + vec3 minimums, + vec3 range_dividers, + out vec4 result) +{ + vec4 hsv; + rgb_to_hsv(color, hsv); + + /* First, adjust the hue channel on its own, since corrections in the saturation and value + * channels depends on the new value of the hue, not its original value. A curve map value of 0.5 + * means no change in hue, so adjust the value to get an identity at 0.5. Since the identity of + * addition is 0, we subtract 0.5 (0.5 - 0.5 = 0). */ + const float hue_parameter = NORMALIZE_PARAMETER(hsv.x, minimums.x, range_dividers.x); + hsv.x += texture(curve_map, vec2(hue_parameter, layer)).x - 0.5; + + /* Second, adjust the saturation and value based on the new value of the hue. A curve map value + * of 0.5 means no change in hue, so adjust the value to get an identity at 0.5. Since the + * identity of duplication is 1, we multiply by 2 (0.5 * 2 = 1). */ + vec2 parameters = NORMALIZE_PARAMETER(hsv.x, minimums.yz, range_dividers.yz); + hsv.y *= texture(curve_map, vec2(parameters.x, layer)).y * 2.0; + hsv.z *= texture(curve_map, vec2(parameters.y, layer)).z * 2.0; + + /* Sanitize the new hue and saturation values. */ + hsv.x = fract(hsv.x); + hsv.y = clamp(hsv.y, 0.0, 1.0); + + hsv_to_rgb(hsv, result); + + result = mix(color, result, factor); +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_hue_saturation_value.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_hue_saturation_value.glsl new file mode 100644 index 00000000000..dd5eb33d318 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_hue_saturation_value.glsl @@ -0,0 +1,16 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +void node_composite_hue_saturation_value( + vec4 color, float hue, float saturation, float value, float factor, out vec4 result) +{ + vec4 hsv; + rgb_to_hsv(color, hsv); + + hsv.x = fract(hsv.x + hue + 0.5); + hsv.y = clamp(hsv.y * saturation, 0.0, 1.0); + hsv.z = hsv.z * value; + + hsv_to_rgb(hsv, result); + + result = mix(color, result, factor); +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_invert.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_invert.glsl new file mode 100644 index 00000000000..59be746da7f --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_invert.glsl @@ -0,0 +1,13 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +void node_composite_invert(float fac, vec4 color, float do_rgb, float do_alpha, out vec4 result) +{ + result = color; + if (do_rgb != 0.0) { + result.rgb = 1.0 - result.rgb; + } + if (do_alpha != 0.0) { + result.a = 1.0 - result.a; + } + result = mix(color, result, fac); +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_luminance_matte.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_luminance_matte.glsl new file mode 100644 index 00000000000..3647ac583fe --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_luminance_matte.glsl @@ -0,0 +1,14 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +void node_composite_luminance_matte(vec4 color, + float high, + float low, + const vec3 luminance_coefficients, + out vec4 result, + out float matte) +{ + float luminance = get_luminance(color.rgb, luminance_coefficients); + float alpha = clamp(0.0, 1.0, (luminance - low) / (high - low)); + matte = min(alpha, color.a); + result = color * matte; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_main.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_main.glsl new file mode 100644 index 00000000000..27624223dbc --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_main.glsl @@ -0,0 +1,7 @@ +/* The compute shader that will be dispatched by the compositor ShaderOperation. It just calls the + * evaluate function that will be dynamically generated and appended to this shader in the + * ShaderOperation::generate_code method. */ +void main() +{ + evaluate(); +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_map_value.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_map_value.glsl new file mode 100644 index 00000000000..20874b4ef44 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_map_value.glsl @@ -0,0 +1,56 @@ +/* An arbitrary value determined by Blender. */ +#define BLENDER_ZMAX 10000.0 + +void node_composite_map_range(float value, + float from_min, + float from_max, + float to_min, + float to_max, + const float should_clamp, + out float result) +{ + if (abs(from_max - from_min) < 1e-6) { + result = 0.0; + } + else { + if (value >= -BLENDER_ZMAX && value <= BLENDER_ZMAX) { + result = (value - from_min) / (from_max - from_min); + result = to_min + result * (to_max - to_min); + } + else if (value > BLENDER_ZMAX) { + result = to_max; + } + else { + result = to_min; + } + + if (should_clamp != 0.0) { + if (to_max > to_min) { + result = clamp(result, to_min, to_max); + } + else { + result = clamp(result, to_max, to_min); + } + } + } +} + +void node_composite_map_value(float value, + float offset, + float size, + const float use_min, + float min, + const float use_max, + float max, + out float result) +{ + result = (value + offset) * size; + + if (use_min != 0.0 && result < min) { + result = min; + } + + if (use_max != 0.0 && result > max) { + result = max; + } +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_normal.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_normal.glsl new file mode 100644 index 00000000000..a2e3b6c4aaa --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_normal.glsl @@ -0,0 +1,9 @@ +void node_composite_normal(vec3 input_vector, + vec3 input_normal, + out vec3 result_normal, + out float result_dot) +{ + vec3 normal = normalize(input_normal); + result_normal = normal; + result_dot = -dot(input_vector, normal); +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_posterize.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_posterize.glsl new file mode 100644 index 00000000000..ee8ae234abe --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_posterize.glsl @@ -0,0 +1,6 @@ +void node_composite_posterize(vec4 color, float steps, out vec4 result) +{ + steps = clamp(steps, 2.0, 1024.0); + result = floor(color * steps) / steps; + result.a = color.a; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_separate_combine.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_separate_combine.glsl new file mode 100644 index 00000000000..d72d2260394 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_separate_combine.glsl @@ -0,0 +1,132 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +/* ** Combine/Separate XYZ ** */ + +void node_composite_combine_xyz(float x, float y, float z, out vec3 vector) +{ + vector = vec3(x, y, z); +} + +void node_composite_separate_xyz(vec3 vector, out float x, out float y, out float z) +{ + x = vector.x; + y = vector.y; + z = vector.z; +} + +/* ** Combine/Separate RGBA ** */ + +void node_composite_combine_rgba(float r, float g, float b, float a, out vec4 color) +{ + color = vec4(r, g, b, a); +} + +void node_composite_separate_rgba(vec4 color, out float r, out float g, out float b, out float a) +{ + r = color.r; + g = color.g; + b = color.b; + a = color.a; +} + +/* ** Combine/Separate HSVA ** */ + +void node_composite_combine_hsva(float h, float s, float v, float a, out vec4 color) +{ + hsv_to_rgb(vec4(h, s, v, a), color); +} + +void node_composite_separate_hsva(vec4 color, out float h, out float s, out float v, out float a) +{ + vec4 hsva; + rgb_to_hsv(color, hsva); + h = hsva.x; + s = hsva.y; + v = hsva.z; + a = hsva.a; +} + +/* ** Combine/Separate HSLA ** */ + +void node_composite_combine_hsla(float h, float s, float l, float a, out vec4 color) +{ + hsl_to_rgb(vec4(h, s, l, a), color); +} + +void node_composite_separate_hsla(vec4 color, out float h, out float s, out float l, out float a) +{ + vec4 hsla; + rgb_to_hsl(color, hsla); + h = hsla.x; + s = hsla.y; + l = hsla.z; + a = hsla.a; +} + +/* ** Combine/Separate YCCA ** */ + +void node_composite_combine_ycca_itu_601(float y, float cb, float cr, float a, out vec4 color) +{ + ycca_to_rgba_itu_601(vec4(y, cb, cr, a), color); +} + +void node_composite_combine_ycca_itu_709(float y, float cb, float cr, float a, out vec4 color) +{ + ycca_to_rgba_itu_709(vec4(y, cb, cr, a), color); +} + +void node_composite_combine_ycca_jpeg(float y, float cb, float cr, float a, out vec4 color) +{ + ycca_to_rgba_jpeg(vec4(y, cb, cr, a), color); +} + +void node_composite_separate_ycca_itu_601( + vec4 color, out float y, out float cb, out float cr, out float a) +{ + vec4 ycca; + rgba_to_ycca_itu_601(color, ycca); + y = ycca.x; + cb = ycca.y; + cr = ycca.z; + a = ycca.a; +} + +void node_composite_separate_ycca_itu_709( + vec4 color, out float y, out float cb, out float cr, out float a) +{ + vec4 ycca; + rgba_to_ycca_itu_709(color, ycca); + y = ycca.x; + cb = ycca.y; + cr = ycca.z; + a = ycca.a; +} + +void node_composite_separate_ycca_jpeg( + vec4 color, out float y, out float cb, out float cr, out float a) +{ + vec4 ycca; + rgba_to_ycca_jpeg(color, ycca); + y = ycca.x; + cb = ycca.y; + cr = ycca.z; + a = ycca.a; +} + +/* ** Combine/Separate YUVA ** */ + +void node_composite_combine_yuva_itu_709(float y, float u, float v, float a, out vec4 color) +{ + yuva_to_rgba_itu_709(vec4(y, u, v, a), color); +} + +void node_composite_separate_yuva_itu_709( + vec4 color, out float y, out float u, out float v, out float a) +{ + vec4 yuva; + rgba_to_yuva_itu_709(color, yuva); + y = yuva.x; + u = yuva.y; + v = yuva.z; + a = yuva.a; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_set_alpha.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_set_alpha.glsl new file mode 100644 index 00000000000..95380d1ed0f --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_set_alpha.glsl @@ -0,0 +1,9 @@ +void node_composite_set_alpha_apply(vec4 color, float alpha, out vec4 result) +{ + result = color * alpha; +} + +void node_composite_set_alpha_replace(vec4 color, float alpha, out vec4 result) +{ + result = vec4(color.rgb, alpha); +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_store_output.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_store_output.glsl new file mode 100644 index 00000000000..7fba26907b5 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_store_output.glsl @@ -0,0 +1,26 @@ +/* The following functions are called to store the given value in the output identified by the + * given ID. The ID is an unsigned integer that is encoded in a float, so floatBitsToUint is called + * to get the actual identifier. The functions have an output value as their last argument that is + * used to establish an output link that is then used to track the nodes that contribute to the + * output of the compositor node tree. + * + * The store_[float|vector|color] functions are dynamically generated in + * ShaderOperation::generate_code_for_outputs. */ + +void node_compositor_store_output_float(const float id, float value, out float out_value) +{ + store_float(floatBitsToUint(id), value); + out_value = value; +} + +void node_compositor_store_output_vector(const float id, vec3 vector, out vec3 out_vector) +{ + store_vector(floatBitsToUint(id), vector); + out_vector = vector; +} + +void node_compositor_store_output_color(const float id, vec4 color, out vec4 out_color) +{ + store_color(floatBitsToUint(id), color); + out_color = color; +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_texture_utilities.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_texture_utilities.glsl new file mode 100644 index 00000000000..128fc6aeaf5 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_texture_utilities.glsl @@ -0,0 +1,35 @@ +/* A shorthand for 1D textureSize with a zero LOD. */ +int texture_size(sampler1D sampler) +{ + return textureSize(sampler, 0); +} + +/* A shorthand for 1D texelFetch with zero LOD and bounded access clamped to border. */ +vec4 texture_load(sampler1D sampler, int x) +{ + const int texture_bound = texture_size(sampler) - 1; + return texelFetch(sampler, clamp(x, 0, texture_bound), 0); +} + +/* A shorthand for 2D textureSize with a zero LOD. */ +ivec2 texture_size(sampler2D sampler) +{ + return textureSize(sampler, 0); +} + +/* A shorthand for 2D texelFetch with zero LOD and bounded access clamped to border. */ +vec4 texture_load(sampler2D sampler, ivec2 texel) +{ + const ivec2 texture_bounds = texture_size(sampler) - ivec2(1); + return texelFetch(sampler, clamp(texel, ivec2(0), texture_bounds), 0); +} + +/* A shorthand for 2D texelFetch with zero LOD and a fallback value for out-of-bound access. */ +vec4 texture_load(sampler2D sampler, ivec2 texel, vec4 fallback) +{ + const ivec2 texture_bounds = texture_size(sampler) - ivec2(1); + if (any(lessThan(texel, ivec2(0))) || any(greaterThan(texel, texture_bounds))) { + return fallback; + } + return texelFetch(sampler, texel, 0); +} diff --git a/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_type_conversion.glsl b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_type_conversion.glsl new file mode 100644 index 00000000000..75c76fd7341 --- /dev/null +++ b/source/blender/gpu/shaders/compositor/library/gpu_shader_compositor_type_conversion.glsl @@ -0,0 +1,29 @@ +float float_from_vec4(vec4 vector) +{ + return dot(vector.rgb, vec3(1.0)) / 3.0; +} + +float float_from_vec3(vec3 vector) +{ + return dot(vector, vec3(1.0)) / 3.0; +} + +vec3 vec3_from_vec4(vec4 vector) +{ + return vector.rgb; +} + +vec3 vec3_from_float(float value) +{ + return vec3(value); +} + +vec4 vec4_from_vec3(vec3 vector) +{ + return vec4(vector, 1.0); +} + +vec4 vec4_from_float(float value) +{ + return vec4(vec3(value), 1.0); +} diff --git a/source/blender/gpu/shaders/gpu_shader_2D_flat_color_vert.glsl b/source/blender/gpu/shaders/gpu_shader_2D_flat_color_vert.glsl deleted file mode 100644 index cf948bb2533..00000000000 --- a/source/blender/gpu/shaders/gpu_shader_2D_flat_color_vert.glsl +++ /dev/null @@ -1,6 +0,0 @@ - -void main() -{ - gl_Position = ModelViewProjectionMatrix * vec4(pos, 0.0, 1.0); - finalColor = color; -} diff --git a/source/blender/gpu/shaders/gpu_shader_2D_image_vert.glsl b/source/blender/gpu/shaders/gpu_shader_2D_image_vert.glsl index 0b5e3759dfb..8191fb6a8d6 100644 --- a/source/blender/gpu/shaders/gpu_shader_2D_image_vert.glsl +++ b/source/blender/gpu/shaders/gpu_shader_2D_image_vert.glsl @@ -10,6 +10,5 @@ out vec2 texCoord_interp; void main() { gl_Position = ModelViewProjectionMatrix * vec4(pos.xy, 0.0f, 1.0f); - gl_Position.z = 1.0; texCoord_interp = texCoord; } diff --git a/source/blender/gpu/shaders/gpu_shader_2D_line_dashed_uniform_color_vert.glsl b/source/blender/gpu/shaders/gpu_shader_2D_line_dashed_uniform_color_vert.glsl deleted file mode 100644 index 7878dc18362..00000000000 --- a/source/blender/gpu/shaders/gpu_shader_2D_line_dashed_uniform_color_vert.glsl +++ /dev/null @@ -1,13 +0,0 @@ - -/* - * Vertex Shader for dashed lines with 2D coordinates, - * with uniform multi-colors or uniform single-color, and unary thickness. - * - * Dashed is performed in screen space. - */ - -void main() -{ - gl_Position = ModelViewProjectionMatrix * vec4(pos, 0.0, 1.0); - stipple_start = stipple_pos = viewport_size * 0.5 * (gl_Position.xy / gl_Position.w); -} diff --git a/source/blender/gpu/shaders/gpu_shader_2D_nodelink_frag.glsl b/source/blender/gpu/shaders/gpu_shader_2D_nodelink_frag.glsl index ecda17a7495..433aad85cf6 100644 --- a/source/blender/gpu/shaders/gpu_shader_2D_nodelink_frag.glsl +++ b/source/blender/gpu/shaders/gpu_shader_2D_nodelink_frag.glsl @@ -26,5 +26,5 @@ void main() fragColor.a *= alpha; } - fragColor.a *= smoothstep(1.0, 0.1, abs(colorGradient)); + fragColor.a *= smoothstep(lineThickness, lineThickness - 0.6, abs(colorGradient)); } diff --git a/source/blender/gpu/shaders/gpu_shader_2D_nodelink_vert.glsl b/source/blender/gpu/shaders/gpu_shader_2D_nodelink_vert.glsl index 779bcc59487..794af5b69a5 100644 --- a/source/blender/gpu/shaders/gpu_shader_2D_nodelink_vert.glsl +++ b/source/blender/gpu/shaders/gpu_shader_2D_nodelink_vert.glsl @@ -12,10 +12,8 @@ void main(void) { - /* Define where along the noodle the gradient will starts and ends. - * Use 0.25 instead of 0.35-0.65, because of a visual shift issue. */ - const float start_gradient_threshold = 0.25; - const float end_gradient_threshold = 0.55; + const float start_gradient_threshold = 0.35; + const float end_gradient_threshold = 0.65; #ifdef USE_INSTANCE # define colStart (colid_doarrow[0] < 3 ? start_color : node_link_data.colors[colid_doarrow[0]]) @@ -40,6 +38,31 @@ void main(void) vec4 colEnd = node_link_data.colors[2]; #endif + float line_thickness = thickness; + + if (gl_VertexID < MID_VERTEX) { + /* Outline pass. */ + finalColor = colShadow; + } + else { + /* Second pass. */ + if (uv.x < start_gradient_threshold) { + finalColor = colStart; + } + else if (uv.x > end_gradient_threshold) { + finalColor = colEnd; + } + else { + float mixFactor = (uv.x - start_gradient_threshold) / + (end_gradient_threshold - start_gradient_threshold); + finalColor = mix(colStart, colEnd, mixFactor); + } + line_thickness *= 0.65f; + if (doMuted) { + finalColor[3] = 0.65; + } + } + /* Parameters for the dashed line. */ isMainLine = expand.y != 1.0 ? 0 : 1; dashFactor = dash_factor; @@ -76,35 +99,14 @@ void main(void) exp_axis = ModelViewProjectionMatrix[0].xy * exp_axis.xx + ModelViewProjectionMatrix[1].xy * exp_axis.yy; - float expand_dist = (uv.y * 2.0 - 1.0); + float expand_dist = line_thickness * (uv.y * 2.0 - 1.0); colorGradient = expand_dist; - - if (gl_VertexID < MID_VERTEX) { - /* Shadow pass */ - finalColor = colShadow; - } - else { - /* Second pass */ - if (uv.x < start_gradient_threshold) { - finalColor = colStart; - } - else if (uv.x > end_gradient_threshold) { - finalColor = colEnd; - } - else { - /* Add 0.1 to avoid a visual shift issue. */ - finalColor = mix(colStart, colEnd, uv.x + 0.1); - } - expand_dist *= 0.5; - if (doMuted) { - finalColor[3] = 0.65; - } - } + lineThickness = line_thickness; finalColor[3] *= dim_factor; /* Expand into a line */ - gl_Position.xy += exp_axis * node_link_data.expandSize * expand_dist * thickness; + gl_Position.xy += exp_axis * node_link_data.expandSize * expand_dist; /* If the link is not muted or is not a reroute arrow the points are squashed to the center of * the line. Magic numbers are defined in drawnode.c */ diff --git a/source/blender/gpu/shaders/gpu_shader_2D_smooth_color_frag.glsl b/source/blender/gpu/shaders/gpu_shader_2D_smooth_color_frag.glsl deleted file mode 100644 index 8690ba0767a..00000000000 --- a/source/blender/gpu/shaders/gpu_shader_2D_smooth_color_frag.glsl +++ /dev/null @@ -1,7 +0,0 @@ -#pragma BLENDER_REQUIRE(gpu_shader_colorspace_lib.glsl) - -void main() -{ - fragColor = finalColor; - fragColor = blender_srgb_to_framebuffer_space(fragColor); -} diff --git a/source/blender/gpu/shaders/gpu_shader_2D_smooth_color_vert.glsl b/source/blender/gpu/shaders/gpu_shader_2D_smooth_color_vert.glsl deleted file mode 100644 index cf948bb2533..00000000000 --- a/source/blender/gpu/shaders/gpu_shader_2D_smooth_color_vert.glsl +++ /dev/null @@ -1,6 +0,0 @@ - -void main() -{ - gl_Position = ModelViewProjectionMatrix * vec4(pos, 0.0, 1.0); - finalColor = color; -} diff --git a/source/blender/gpu/shaders/gpu_shader_codegen_lib.glsl b/source/blender/gpu/shaders/gpu_shader_codegen_lib.glsl index 6091a5c834a..94707de71ed 100644 --- a/source/blender/gpu/shaders/gpu_shader_codegen_lib.glsl +++ b/source/blender/gpu/shaders/gpu_shader_codegen_lib.glsl @@ -187,8 +187,10 @@ struct ClosureTransparency { struct GlobalData { /** World position. */ vec3 P; - /** Surface Normal. */ + /** Surface Normal. Normalized, overridden by bump displacement. */ vec3 N; + /** Raw interpolated normal (non-normalized) data. */ + vec3 Ni; /** Geometric Normal. */ vec3 Ng; /** Curve Tangent Space. */ diff --git a/source/blender/gpu/shaders/gpu_shader_image_modulate_alpha_frag.glsl b/source/blender/gpu/shaders/gpu_shader_image_modulate_alpha_frag.glsl deleted file mode 100644 index 26f96a5da32..00000000000 --- a/source/blender/gpu/shaders/gpu_shader_image_modulate_alpha_frag.glsl +++ /dev/null @@ -1,6 +0,0 @@ - -void main() -{ - fragColor = texture(image, texCoord_interp); - fragColor.a *= alpha; -} diff --git a/source/blender/gpu/shaders/infos/gpu_shader_2D_flat_color_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_2D_flat_color_info.hh deleted file mode 100644 index 24a06a37a44..00000000000 --- a/source/blender/gpu/shaders/infos/gpu_shader_2D_flat_color_info.hh +++ /dev/null @@ -1,21 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later - * Copyright 2022 Blender Foundation. All rights reserved. */ - -/** \file - * \ingroup gpu - */ - -#include "gpu_shader_create_info.hh" - -#include "gpu_interface_info.hh" - -GPU_SHADER_CREATE_INFO(gpu_shader_2D_flat_color) - .vertex_in(0, Type::VEC2, "pos") - .vertex_in(1, Type::VEC4, "color") - .vertex_out(flat_color_iface) - .fragment_out(0, Type::VEC4, "fragColor") - .push_constant(Type::MAT4, "ModelViewProjectionMatrix") - .vertex_source("gpu_shader_2D_flat_color_vert.glsl") - .fragment_source("gpu_shader_flat_color_frag.glsl") - .additional_info("gpu_srgb_to_framebuffer_space") - .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/infos/gpu_shader_2D_image_color_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_2D_image_color_info.hh deleted file mode 100644 index 021bd9ebb95..00000000000 --- a/source/blender/gpu/shaders/infos/gpu_shader_2D_image_color_info.hh +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later - * Copyright 2022 Blender Foundation. All rights reserved. */ - -/** \file - * \ingroup gpu - */ - -#include "gpu_shader_create_info.hh" - -GPU_SHADER_CREATE_INFO(gpu_shader_2D_image_color) - .additional_info("gpu_shader_2D_image_common") - .push_constant(Type::VEC4, "color") - .fragment_source("gpu_shader_image_color_frag.glsl") - .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/infos/gpu_shader_2D_image_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_2D_image_info.hh index 06aad15c18a..a92dca0ce90 100644 --- a/source/blender/gpu/shaders/infos/gpu_shader_2D_image_info.hh +++ b/source/blender/gpu/shaders/infos/gpu_shader_2D_image_info.hh @@ -16,8 +16,3 @@ GPU_SHADER_CREATE_INFO(gpu_shader_2D_image_common) .push_constant(Type::MAT4, "ModelViewProjectionMatrix") .sampler(0, ImageType::FLOAT_2D, "image") .vertex_source("gpu_shader_2D_image_vert.glsl"); - -GPU_SHADER_CREATE_INFO(gpu_shader_2D_image) - .additional_info("gpu_shader_2D_image_common") - .fragment_source("gpu_shader_image_frag.glsl") - .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/infos/gpu_shader_2D_nodelink_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_2D_nodelink_info.hh index 6a419242d21..c7a6635fef7 100644 --- a/source/blender/gpu/shaders/infos/gpu_shader_2D_nodelink_info.hh +++ b/source/blender/gpu/shaders/infos/gpu_shader_2D_nodelink_info.hh @@ -12,6 +12,7 @@ GPU_SHADER_INTERFACE_INFO(nodelink_iface, "") .smooth(Type::FLOAT, "colorGradient") .smooth(Type::FLOAT, "lineU") .flat(Type::FLOAT, "lineLength") + .flat(Type::FLOAT, "lineThickness") .flat(Type::FLOAT, "dashFactor") .flat(Type::FLOAT, "dashAlpha") .flat(Type::INT, "isMainLine"); diff --git a/source/blender/gpu/shaders/infos/gpu_shader_2D_smooth_color_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_2D_smooth_color_info.hh deleted file mode 100644 index d6edeef0dfb..00000000000 --- a/source/blender/gpu/shaders/infos/gpu_shader_2D_smooth_color_info.hh +++ /dev/null @@ -1,20 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later - * Copyright 2022 Blender Foundation. All rights reserved. */ - -/** \file - * \ingroup gpu - */ - -#include "gpu_interface_info.hh" -#include "gpu_shader_create_info.hh" - -GPU_SHADER_CREATE_INFO(gpu_shader_2D_smooth_color) - .vertex_in(0, Type::VEC2, "pos") - .vertex_in(1, Type::VEC4, "color") - .vertex_out(smooth_color_iface) - .fragment_out(0, Type::VEC4, "fragColor") - .push_constant(Type::MAT4, "ModelViewProjectionMatrix") - .vertex_source("gpu_shader_2D_smooth_color_vert.glsl") - .fragment_source("gpu_shader_2D_smooth_color_frag.glsl") - .additional_info("gpu_srgb_to_framebuffer_space") - .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/infos/gpu_shader_2D_uniform_color_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_2D_uniform_color_info.hh deleted file mode 100644 index 56ccc3f105c..00000000000 --- a/source/blender/gpu/shaders/infos/gpu_shader_2D_uniform_color_info.hh +++ /dev/null @@ -1,18 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later - * Copyright 2022 Blender Foundation. All rights reserved. */ - -/** \file - * \ingroup gpu - */ - -#include "gpu_shader_create_info.hh" - -GPU_SHADER_CREATE_INFO(gpu_shader_2D_uniform_color) - .vertex_in(0, Type::VEC2, "pos") - .fragment_out(0, Type::VEC4, "fragColor") - .push_constant(Type::MAT4, "ModelViewProjectionMatrix") - .push_constant(Type::VEC4, "color") - .vertex_source("gpu_shader_2D_vert.glsl") - .fragment_source("gpu_shader_uniform_color_frag.glsl") - .additional_info("gpu_srgb_to_framebuffer_space") - .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/infos/gpu_shader_3D_image_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_3D_image_info.hh index 94cf58933af..8abd140397f 100644 --- a/source/blender/gpu/shaders/infos/gpu_shader_3D_image_info.hh +++ b/source/blender/gpu/shaders/infos/gpu_shader_3D_image_info.hh @@ -8,13 +8,22 @@ #include "gpu_interface_info.hh" #include "gpu_shader_create_info.hh" -GPU_SHADER_CREATE_INFO(gpu_shader_3D_image) +GPU_SHADER_CREATE_INFO(gpu_shader_3D_image_common) .vertex_in(0, Type::VEC3, "pos") .vertex_in(1, Type::VEC2, "texCoord") .vertex_out(smooth_tex_coord_interp_iface) .fragment_out(0, Type::VEC4, "fragColor") .push_constant(Type::MAT4, "ModelViewProjectionMatrix") .sampler(0, ImageType::FLOAT_2D, "image") - .vertex_source("gpu_shader_3D_image_vert.glsl") + .vertex_source("gpu_shader_3D_image_vert.glsl"); + +GPU_SHADER_CREATE_INFO(gpu_shader_3D_image) + .additional_info("gpu_shader_3D_image_common") .fragment_source("gpu_shader_image_frag.glsl") .do_static_compilation(true); + +GPU_SHADER_CREATE_INFO(gpu_shader_3D_image_color) + .additional_info("gpu_shader_3D_image_common") + .push_constant(Type::VEC4, "color") + .fragment_source("gpu_shader_image_color_frag.glsl") + .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/infos/gpu_shader_3D_image_modulate_alpha_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_3D_image_modulate_alpha_info.hh deleted file mode 100644 index 35ddaa5c71c..00000000000 --- a/source/blender/gpu/shaders/infos/gpu_shader_3D_image_modulate_alpha_info.hh +++ /dev/null @@ -1,21 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later - * Copyright 2022 Blender Foundation. All rights reserved. */ - -/** \file - * \ingroup gpu - */ - -#include "gpu_interface_info.hh" -#include "gpu_shader_create_info.hh" - -GPU_SHADER_CREATE_INFO(gpu_shader_3D_image_modulate_alpha) - .vertex_in(0, Type::VEC3, "pos") - .vertex_in(1, Type::VEC2, "texCoord") - .vertex_out(smooth_tex_coord_interp_iface) - .fragment_out(0, Type::VEC4, "fragColor") - .push_constant(Type::MAT4, "ModelViewProjectionMatrix") - .push_constant(Type::FLOAT, "alpha") - .sampler(0, ImageType::FLOAT_2D, "image", Frequency::PASS) - .vertex_source("gpu_shader_3D_image_vert.glsl") - .fragment_source("gpu_shader_image_modulate_alpha_frag.glsl") - .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/infos/gpu_shader_3D_line_dashed_uniform_color_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_3D_line_dashed_uniform_color_info.hh deleted file mode 100644 index 2987077ffba..00000000000 --- a/source/blender/gpu/shaders/infos/gpu_shader_3D_line_dashed_uniform_color_info.hh +++ /dev/null @@ -1,18 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later - * Copyright 2022 Blender Foundation. All rights reserved. */ - -/** \file - * \ingroup gpu - */ - -#include "gpu_interface_info.hh" -#include "gpu_shader_create_info.hh" - -/* TODO(jbakker): Skipped as data doesn't fit as push constant. */ -GPU_SHADER_CREATE_INFO(gpu_shader_3D_line_dashed_uniform_color) - .vertex_in(0, Type::VEC3, "pos") - .vertex_out(flat_color_iface) - .push_constant(Type::MAT4, "ModelViewProjectionMatrix") - .vertex_source("gpu_shader_3D_line_dashed_uniform_color_vert.glsl") - .fragment_source("gpu_shader_2D_line_dashed_frag.glsl") - .do_static_compilation(true); diff --git a/source/blender/gpu/shaders/infos/gpu_shader_3D_polyline_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_3D_polyline_info.hh index 6840dfe25de..396ee64454c 100644 --- a/source/blender/gpu/shaders/infos/gpu_shader_3D_polyline_info.hh +++ b/source/blender/gpu/shaders/infos/gpu_shader_3D_polyline_info.hh @@ -37,7 +37,7 @@ GPU_SHADER_CREATE_INFO(gpu_shader_3D_polyline_uniform_color) GPU_SHADER_CREATE_INFO(gpu_shader_3D_polyline_uniform_color_clipped) .do_static_compilation(true) - /* TODO(fclem): Put in an UBO to fit the 128byte requirement. */ + /* TODO(fclem): Put in a UBO to fit the 128byte requirement. */ .push_constant(Type::MAT4, "ModelMatrix") .push_constant(Type::VEC4, "ClipPlane") .define("CLIP") diff --git a/source/blender/gpu/shaders/infos/gpu_shader_line_dashed_uniform_color_info.hh b/source/blender/gpu/shaders/infos/gpu_shader_line_dashed_uniform_color_info.hh index 57cb02c8484..a2ac08c689b 100644 --- a/source/blender/gpu/shaders/infos/gpu_shader_line_dashed_uniform_color_info.hh +++ b/source/blender/gpu/shaders/infos/gpu_shader_line_dashed_uniform_color_info.hh @@ -13,7 +13,8 @@ GPU_SHADER_INTERFACE_INFO(gpu_shader_line_dashed_interface, "") .no_perspective(Type::VEC2, "stipple_start") /* In screen space */ .flat(Type::VEC2, "stipple_pos"); /* In screen space */ -GPU_SHADER_CREATE_INFO(gpu_shader_line_dashed) +GPU_SHADER_CREATE_INFO(gpu_shader_3D_line_dashed_uniform_color) + .vertex_in(0, Type::VEC3, "pos") .vertex_out(flat_color_iface) .push_constant(Type::MAT4, "ModelViewProjectionMatrix") .push_constant(Type::VEC2, "viewport_size") @@ -25,18 +26,8 @@ GPU_SHADER_CREATE_INFO(gpu_shader_line_dashed) .push_constant(Type::VEC4, "color2") .vertex_out(gpu_shader_line_dashed_interface) .fragment_out(0, Type::VEC4, "fragColor") - .fragment_source("gpu_shader_2D_line_dashed_frag.glsl"); - -GPU_SHADER_CREATE_INFO(gpu_shader_2D_line_dashed_uniform_color) - .vertex_in(0, Type::VEC2, "pos") - .vertex_source("gpu_shader_2D_line_dashed_uniform_color_vert.glsl") - .additional_info("gpu_shader_line_dashed") - .do_static_compilation(true); - -GPU_SHADER_CREATE_INFO(gpu_shader_3D_line_dashed_uniform_color) - .vertex_in(0, Type::VEC3, "pos") .vertex_source("gpu_shader_3D_line_dashed_uniform_color_vert.glsl") - .additional_info("gpu_shader_line_dashed") + .fragment_source("gpu_shader_2D_line_dashed_frag.glsl") .do_static_compilation(true); GPU_SHADER_CREATE_INFO(gpu_shader_3D_line_dashed_uniform_color_clipped) diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_attribute.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_attribute.glsl index 2ae53b35b3f..bacf089deb1 100644 --- a/source/blender/gpu/shaders/material/gpu_shader_material_attribute.glsl +++ b/source/blender/gpu/shaders/material/gpu_shader_material_attribute.glsl @@ -12,6 +12,23 @@ void node_attribute_temperature(vec4 attr, out vec4 out_attr) out_attr.w = 1.0; } +void node_attribute_density(vec4 attr, out float out_attr) +{ + out_attr = attr.x; +} + +void node_attribute_flame(vec4 attr, out float out_attr) +{ + out_attr = attr.x; +} + +void node_attribute_uniform(vec4 attr, const float attr_hash, out vec4 out_attr) +{ + /* Temporary solution to support both old UBO attribs and new SSBO loading. + * Old UBO load is already done through `attr` and will just be passed through. */ + out_attr = attr_load_uniform(attr, floatBitsToUint(attr_hash)); +} + void node_attribute( vec4 attr, out vec4 outcol, out vec3 outvec, out float outf, out float outalpha) { diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_displacement.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_displacement.glsl index cdcdbe50917..52b4edf665f 100644 --- a/source/blender/gpu/shaders/material/gpu_shader_material_displacement.glsl +++ b/source/blender/gpu/shaders/material/gpu_shader_material_displacement.glsl @@ -1,6 +1,6 @@ void node_displacement_object(float height, float midlevel, float scale, vec3 N, out vec3 result) { - N = transform_direction(ModelMatrix, N); + N = transform_direction(ModelMatrixInverse, N); result = (height - midlevel) * scale * normalize(N); /* Apply object scale and orientation. */ result = transform_direction(ModelMatrix, result); diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_eevee_specular.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_eevee_specular.glsl index 530907859e9..c95a41c58fc 100644 --- a/source/blender/gpu/shaders/material/gpu_shader_material_eevee_specular.glsl +++ b/source/blender/gpu/shaders/material/gpu_shader_material_eevee_specular.glsl @@ -34,6 +34,13 @@ void node_eevee_specular(vec4 diffuse, diffuse_data.N = N; diffuse_data.sss_id = 0u; + /* WORKAROUND: Nasty workaround to the current interface with the closure evaluation. + * Ideally the occlusion input should be move to the output node or removed all-together. + * This is temporary to avoid a regression in 3.2 and should be removed after EEVEE-Next rewrite. + */ + diffuse_data.sss_radius.r = occlusion; + diffuse_data.sss_radius.g = -1.0; /* Flag */ + ClosureReflection reflection_data; reflection_data.weight = alpha; if (true) { @@ -41,7 +48,7 @@ void node_eevee_specular(vec4 diffuse, vec2 split_sum = brdf_lut(NV, roughness); vec3 brdf = F_brdf_single_scatter(specular.rgb, vec3(1.0), split_sum); - reflection_data.color = specular.rgb * brdf; + reflection_data.color = brdf; reflection_data.N = N; reflection_data.roughness = roughness; } diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_mix_color.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_mix_color.glsl new file mode 100644 index 00000000000..933a8de9cb7 --- /dev/null +++ b/source/blender/gpu/shaders/material/gpu_shader_material_mix_color.glsl @@ -0,0 +1,537 @@ +#pragma BLENDER_REQUIRE(gpu_shader_common_color_utils.glsl) + +void node_mix_blend(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + outcol = mix(col1, col2, fac); + outcol.a = col1.a; +} + +void node_mix_add(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + outcol = mix(col1, col1 + col2, fac); + outcol.a = col1.a; +} + +void node_mix_mult(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + outcol = mix(col1, col1 * col2, fac); + outcol.a = col1.a; +} + +void node_mix_screen(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + float facm = 1.0 - fac; + + outcol = vec4(1.0) - (vec4(facm) + fac * (vec4(1.0) - col2)) * (vec4(1.0) - col1); + outcol.a = col1.a; +} + +void node_mix_overlay(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + float facm = 1.0 - fac; + + outcol = col1; + + if (outcol.r < 0.5) { + outcol.r *= facm + 2.0 * fac * col2.r; + } + else { + outcol.r = 1.0 - (facm + 2.0 * fac * (1.0 - col2.r)) * (1.0 - outcol.r); + } + + if (outcol.g < 0.5) { + outcol.g *= facm + 2.0 * fac * col2.g; + } + else { + outcol.g = 1.0 - (facm + 2.0 * fac * (1.0 - col2.g)) * (1.0 - outcol.g); + } + + if (outcol.b < 0.5) { + outcol.b *= facm + 2.0 * fac * col2.b; + } + else { + outcol.b = 1.0 - (facm + 2.0 * fac * (1.0 - col2.b)) * (1.0 - outcol.b); + } +} + +void node_mix_sub(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + outcol = mix(col1, col1 - col2, fac); + outcol.a = col1.a; +} + +/* A variant of mix_div that fallback to the first color upon zero division. */ +void node_mix_div_fallback(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + float facm = 1.0 - fac; + + outcol = col1; + + if (col2.r != 0.0) { + outcol.r = facm * outcol.r + fac * outcol.r / col2.r; + } + if (col2.g != 0.0) { + outcol.g = facm * outcol.g + fac * outcol.g / col2.g; + } + if (col2.b != 0.0) { + outcol.b = facm * outcol.b + fac * outcol.b / col2.b; + } +} + +void node_mix_diff(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + outcol = mix(col1, abs(col1 - col2), fac); + outcol.a = col1.a; +} + +void node_mix_dark(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + outcol.rgb = mix(col1.rgb, min(col1.rgb, col2.rgb), fac); + outcol.a = col1.a; +} + +void node_mix_light(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + outcol.rgb = mix(col1.rgb, max(col1.rgb, col2.rgb), fac); + outcol.a = col1.a; +} + +void node_mix_dodge(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + outcol = col1; + + if (outcol.r != 0.0) { + float tmp = 1.0 - fac * col2.r; + if (tmp <= 0.0) { + outcol.r = 1.0; + } + else if ((tmp = outcol.r / tmp) > 1.0) { + outcol.r = 1.0; + } + else { + outcol.r = tmp; + } + } + if (outcol.g != 0.0) { + float tmp = 1.0 - fac * col2.g; + if (tmp <= 0.0) { + outcol.g = 1.0; + } + else if ((tmp = outcol.g / tmp) > 1.0) { + outcol.g = 1.0; + } + else { + outcol.g = tmp; + } + } + if (outcol.b != 0.0) { + float tmp = 1.0 - fac * col2.b; + if (tmp <= 0.0) { + outcol.b = 1.0; + } + else if ((tmp = outcol.b / tmp) > 1.0) { + outcol.b = 1.0; + } + else { + outcol.b = tmp; + } + } +} + +void node_mix_burn(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + float tmp, facm = 1.0 - fac; + + outcol = col1; + + tmp = facm + fac * col2.r; + if (tmp <= 0.0) { + outcol.r = 0.0; + } + else if ((tmp = (1.0 - (1.0 - outcol.r) / tmp)) < 0.0) { + outcol.r = 0.0; + } + else if (tmp > 1.0) { + outcol.r = 1.0; + } + else { + outcol.r = tmp; + } + + tmp = facm + fac * col2.g; + if (tmp <= 0.0) { + outcol.g = 0.0; + } + else if ((tmp = (1.0 - (1.0 - outcol.g) / tmp)) < 0.0) { + outcol.g = 0.0; + } + else if (tmp > 1.0) { + outcol.g = 1.0; + } + else { + outcol.g = tmp; + } + + tmp = facm + fac * col2.b; + if (tmp <= 0.0) { + outcol.b = 0.0; + } + else if ((tmp = (1.0 - (1.0 - outcol.b) / tmp)) < 0.0) { + outcol.b = 0.0; + } + else if (tmp > 1.0) { + outcol.b = 1.0; + } + else { + outcol.b = tmp; + } +} + +void node_mix_hue(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + float facm = 1.0 - fac; + + outcol = col1; + + vec4 hsv, hsv2, tmp; + rgb_to_hsv(col2, hsv2); + + if (hsv2.y != 0.0) { + rgb_to_hsv(outcol, hsv); + hsv.x = hsv2.x; + hsv_to_rgb(hsv, tmp); + + outcol = mix(outcol, tmp, fac); + outcol.a = col1.a; + } +} + +void node_mix_sat(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + float facm = 1.0 - fac; + + outcol = col1; + + vec4 hsv, hsv2; + rgb_to_hsv(outcol, hsv); + + if (hsv.y != 0.0) { + rgb_to_hsv(col2, hsv2); + + hsv.y = facm * hsv.y + fac * hsv2.y; + hsv_to_rgb(hsv, outcol); + } +} + +void node_mix_val(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + float facm = 1.0 - fac; + + vec4 hsv, hsv2; + rgb_to_hsv(col1, hsv); + rgb_to_hsv(col2, hsv2); + + hsv.z = facm * hsv.z + fac * hsv2.z; + hsv_to_rgb(hsv, outcol); +} + +void node_mix_color(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + float facm = 1.0 - fac; + + outcol = col1; + + vec4 hsv, hsv2, tmp; + rgb_to_hsv(col2, hsv2); + + if (hsv2.y != 0.0) { + rgb_to_hsv(outcol, hsv); + hsv.x = hsv2.x; + hsv.y = hsv2.y; + hsv_to_rgb(hsv, tmp); + + outcol = mix(outcol, tmp, fac); + outcol.a = col1.a; + } +} + +void node_mix_soft(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + float facm = 1.0 - fac; + + vec4 one = vec4(1.0); + vec4 scr = one - (one - col2) * (one - col1); + outcol = facm * col1 + fac * ((one - col1) * col2 * col1 + col1 * scr); +} + +void node_mix_linear(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + outcol = col1 + fac * (2.0 * (col2 - vec4(0.5))); +} + +void node_mix_float(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + outfloat = mix(f1, f2, fac); +} + +void node_mix_vector(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + + outvec = mix(v1, v2, fac); +} + +void node_mix_vector_non_uniform(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + outvec = mix(v1, v2, facvec); +} + +void node_mix_rgba(float fac, + vec3 facvec, + float f1, + float f2, + vec3 v1, + vec3 v2, + vec4 col1, + vec4 col2, + out float outfloat, + out vec3 outvec, + out vec4 outcol) +{ + outcol = mix(col1, col2, fac); +} + +void node_mix_clamp_vector(vec3 vec, vec3 min, vec3 max, out vec3 outvec) +{ + outvec = clamp(vec, min, max); +} + +void node_mix_clamp_value(float value, float min, float max, out float outfloat) +{ + outfloat = clamp(value, min, max); +} diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_noise.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_noise.glsl index 881e38ea11a..480334f9bbd 100644 --- a/source/blender/gpu/shaders/material/gpu_shader_material_noise.glsl +++ b/source/blender/gpu/shaders/material/gpu_shader_material_noise.glsl @@ -13,7 +13,6 @@ * + + | * @ + + + + @ @------> x * v0 v1 - * */ float bi_mix(float v0, float v1, float v2, float v3, float x, float y) { diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_normal_map.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_normal_map.glsl index a54dc59ddfe..3fc4992f7c4 100644 --- a/source/blender/gpu/shaders/material/gpu_shader_material_normal_map.glsl +++ b/source/blender/gpu/shaders/material/gpu_shader_material_normal_map.glsl @@ -3,13 +3,13 @@ void node_normal_map(vec4 tangent, vec3 texnormal, out vec3 outnormal) { if (all(equal(tangent, vec4(0.0, 0.0, 0.0, 1.0)))) { - outnormal = g_data.N; + outnormal = g_data.Ni; return; } tangent *= (FrontFacing ? 1.0 : -1.0); - vec3 B = tangent.w * cross(g_data.N, tangent.xyz) * sign(ObjectInfo.w); + vec3 B = tangent.w * cross(g_data.Ni, tangent.xyz) * sign(ObjectInfo.w); - outnormal = texnormal.x * tangent.xyz + texnormal.y * B + texnormal.z * g_data.N; + outnormal = texnormal.x * tangent.xyz + texnormal.y * B + texnormal.z * g_data.Ni; outnormal = normalize(outnormal); } #endif diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_principled.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_principled.glsl index 2e695fa3e14..0d8f2272c10 100644 --- a/source/blender/gpu/shaders/material/gpu_shader_material_principled.glsl +++ b/source/blender/gpu/shaders/material/gpu_shader_material_principled.glsl @@ -149,25 +149,37 @@ void node_bsdf_principled(vec4 base_color, max(roughness, transmission_roughness); refraction_data.ior = ior; + /* Ref. T98190: Defines are optimizations for old compilers. + * Might become unecessary with EEVEE-Next. */ if (do_diffuse == 0.0 && do_refraction == 0.0 && do_clearcoat != 0.0) { +#ifdef PRINCIPLED_CLEARCOAT /* Metallic & Clearcoat case. */ result = closure_eval(reflection_data, clearcoat_data); +#endif } else if (do_diffuse == 0.0 && do_refraction == 0.0 && do_clearcoat == 0.0) { +#ifdef PRINCIPLED_METALLIC /* Metallic case. */ result = closure_eval(reflection_data); +#endif } else if (do_diffuse != 0.0 && do_refraction == 0.0 && do_clearcoat == 0.0) { +#ifdef PRINCIPLED_DIELECTRIC /* Dielectric case. */ result = closure_eval(diffuse_data, reflection_data); +#endif } else if (do_diffuse == 0.0 && do_refraction != 0.0 && do_clearcoat == 0.0) { +#ifdef PRINCIPLED_GLASS /* Glass case. */ result = closure_eval(reflection_data, refraction_data); +#endif } else { +#ifdef PRINCIPLED_ANY /* Un-optimized case. */ result = closure_eval(diffuse_data, reflection_data, clearcoat_data, refraction_data); +#endif } Closure emission_cl = closure_eval(emission_data); Closure transparency_cl = closure_eval(transparency_data); diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_tex_musgrave.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_tex_musgrave.glsl index 961fe23e67e..7171c5f2b36 100644 --- a/source/blender/gpu/shaders/material/gpu_shader_material_tex_musgrave.glsl +++ b/source/blender/gpu/shaders/material/gpu_shader_material_tex_musgrave.glsl @@ -153,13 +153,12 @@ void node_tex_musgrave_hybrid_multi_fractal_1d(vec3 co, float lacunarity = max(lac, 1e-5); float pwHL = pow(lacunarity, -H); - float pwr = pwHL; - float value = snoise(p) + offset; - float weight = gain * value; - p *= lacunarity; + float pwr = 1.0; + float value = 0.0; + float weight = 1.0; - for (int i = 1; (weight > 0.001f) && (i < int(octaves)); i++) { + for (int i = 0; (weight > 0.001f) && (i < int(octaves)); i++) { if (weight > 1.0) { weight = 1.0; } @@ -172,8 +171,12 @@ void node_tex_musgrave_hybrid_multi_fractal_1d(vec3 co, } float rmd = octaves - floor(octaves); - if (rmd != 0.0) { - value += rmd * ((snoise(p) + offset) * pwr); + if ((rmd != 0.0) && (weight > 0.001f)) { + if (weight > 1.0) { + weight = 1.0; + } + float signal = (snoise(p) + offset) * pwr; + value += rmd * weight * signal; } fac = value; @@ -375,13 +378,12 @@ void node_tex_musgrave_hybrid_multi_fractal_2d(vec3 co, float lacunarity = max(lac, 1e-5); float pwHL = pow(lacunarity, -H); - float pwr = pwHL; - float value = snoise(p) + offset; - float weight = gain * value; - p *= lacunarity; + float pwr = 1.0; + float value = 0.0; + float weight = 1.0; - for (int i = 1; (weight > 0.001f) && (i < int(octaves)); i++) { + for (int i = 0; (weight > 0.001f) && (i < int(octaves)); i++) { if (weight > 1.0) { weight = 1.0; } @@ -394,8 +396,12 @@ void node_tex_musgrave_hybrid_multi_fractal_2d(vec3 co, } float rmd = octaves - floor(octaves); - if (rmd != 0.0) { - value += rmd * ((snoise(p) + offset) * pwr); + if ((rmd != 0.0) && (weight > 0.001f)) { + if (weight > 1.0) { + weight = 1.0; + } + float signal = (snoise(p) + offset) * pwr; + value += rmd * weight * signal; } fac = value; @@ -597,13 +603,12 @@ void node_tex_musgrave_hybrid_multi_fractal_3d(vec3 co, float lacunarity = max(lac, 1e-5); float pwHL = pow(lacunarity, -H); - float pwr = pwHL; - float value = snoise(p) + offset; - float weight = gain * value; - p *= lacunarity; + float pwr = 1.0; + float value = 0.0; + float weight = 1.0; - for (int i = 1; (weight > 0.001f) && (i < int(octaves)); i++) { + for (int i = 0; (weight > 0.001f) && (i < int(octaves)); i++) { if (weight > 1.0) { weight = 1.0; } @@ -616,8 +621,12 @@ void node_tex_musgrave_hybrid_multi_fractal_3d(vec3 co, } float rmd = octaves - floor(octaves); - if (rmd != 0.0) { - value += rmd * ((snoise(p) + offset) * pwr); + if ((rmd != 0.0) && (weight > 0.001f)) { + if (weight > 1.0) { + weight = 1.0; + } + float signal = (snoise(p) + offset) * pwr; + value += rmd * weight * signal; } fac = value; @@ -819,13 +828,12 @@ void node_tex_musgrave_hybrid_multi_fractal_4d(vec3 co, float lacunarity = max(lac, 1e-5); float pwHL = pow(lacunarity, -H); - float pwr = pwHL; - float value = snoise(p) + offset; - float weight = gain * value; - p *= lacunarity; + float pwr = 1.0; + float value = 0.0; + float weight = 1.0; - for (int i = 1; (weight > 0.001f) && (i < int(octaves)); i++) { + for (int i = 0; (weight > 0.001f) && (i < int(octaves)); i++) { if (weight > 1.0) { weight = 1.0; } @@ -838,8 +846,12 @@ void node_tex_musgrave_hybrid_multi_fractal_4d(vec3 co, } float rmd = octaves - floor(octaves); - if (rmd != 0.0) { - value += rmd * ((snoise(p) + offset) * pwr); + if ((rmd != 0.0) && (weight > 0.001f)) { + if (weight > 1.0) { + weight = 1.0; + } + float signal = (snoise(p) + offset) * pwr; + value += rmd * weight * signal; } fac = value; diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_tex_voronoi.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_tex_voronoi.glsl index 0fb8ef15f5f..aac3d98b43b 100644 --- a/source/blender/gpu/shaders/material/gpu_shader_material_tex_voronoi.glsl +++ b/source/blender/gpu/shaders/material/gpu_shader_material_tex_voronoi.glsl @@ -15,7 +15,6 @@ * * With optimization to change -2..2 scan window to -1..1 for better performance, * as explained in https://www.shadertoy.com/view/llG3zy. - * */ /* **** 1D Voronoi **** */ diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_texture_coordinates.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_texture_coordinates.glsl index 204f134dfa6..c849553ae4c 100644 --- a/source/blender/gpu/shaders/material/gpu_shader_material_texture_coordinates.glsl +++ b/source/blender/gpu/shaders/material/gpu_shader_material_texture_coordinates.glsl @@ -1,4 +1,9 @@ +void node_tex_coord_position(out vec3 out_pos) +{ + out_pos = g_data.P; +} + void node_tex_coord(mat4 obmatinv, vec3 attr_orco, vec4 attr_uv, diff --git a/source/blender/gpu/shaders/metal/mtl_shader_common.msl b/source/blender/gpu/shaders/metal/mtl_shader_common.msl new file mode 100644 index 00000000000..c504cdbacb1 --- /dev/null +++ b/source/blender/gpu/shaders/metal/mtl_shader_common.msl @@ -0,0 +1,109 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +/* Common Metal header to be included in all compiled Metal shaders. + * Both native MSL shaders and GLSL shaders. */ + +using namespace metal; + +/* Should match GPUVertFetchMode. */ +typedef enum { + GPU_FETCH_FLOAT = 0, + GPU_FETCH_INT, + GPU_FETCH_INT_TO_FLOAT_UNIT, + GPU_FETCH_INT_TO_FLOAT, +} GPUVertFetchMode; + +/* Consant to flag base binding index of uniform buffers. */ +constant int MTL_uniform_buffer_base_index [[function_constant(0)]]; + +/* Default Point Size. + * Unused if function constant not set. */ +constant float MTL_global_pointsize [[function_constant(1)]]; + +/* Attribute conversions flags (Up to 16 attributes supported in Blender). */ +constant int MTL_AttributeConvert0 [[function_constant(2)]]; +constant int MTL_AttributeConvert1 [[function_constant(3)]]; +constant int MTL_AttributeConvert2 [[function_constant(4)]]; +constant int MTL_AttributeConvert3 [[function_constant(5)]]; +constant int MTL_AttributeConvert4 [[function_constant(6)]]; +constant int MTL_AttributeConvert5 [[function_constant(7)]]; +constant int MTL_AttributeConvert6 [[function_constant(8)]]; +constant int MTL_AttributeConvert7 [[function_constant(9)]]; +constant int MTL_AttributeConvert8 [[function_constant(10)]]; +constant int MTL_AttributeConvert9 [[function_constant(11)]]; +constant int MTL_AttributeConvert10 [[function_constant(12)]]; +constant int MTL_AttributeConvert11 [[function_constant(13)]]; +constant int MTL_AttributeConvert12 [[function_constant(14)]]; +constant int MTL_AttributeConvert13 [[function_constant(15)]]; +constant int MTL_AttributeConvert14 [[function_constant(16)]]; +constant int MTL_AttributeConvert15 [[function_constant(17)]]; + +/* Consant to flag binding index of transform feedback buffer. + * Unused if function constant not set. */ +constant int MTL_transform_feedback_buffer_index [[function_constant(18)]]; + +/** Internal attribute conversion functionality. */ +/* Following descriptions in mtl_shader.hh, Metal only supports some implicit + * attribute type conversions. These conversions occur when there is a difference + * between the type specified in the vertex descriptor (In the input vertex buffers), + * and the attribute type in the shader's VertexIn struct (ShaderInterface). + * + * The supported implicit conversions are described here: + * https://developer.apple.com/documentation/metal/mtlvertexattributedescriptor/1516081-format?language=objc + * + * For unsupported conversions, the mtl_shader_generator will create an attribute reading function + * which performs this conversion manually upon read, depending on the requested fetchmode. + * + * These conversions use the function constants above, so any branching is optimized out during + * backend shader compilation (PSO creation). + * + * NOTE: Not all possibilities have been covered here, any additional conversion routines should + * be added as needed, and mtl_shader_generator should also be updated with any newly required + * read functions. + * + * These paths are only needed for cases where implicit conversion will not happen, in which + * case the value will be read as the type in the shader. + */ +#define internal_vertex_attribute_convert_read_float(ATTR, v_in, v_out) \ + if (ATTR == GPU_FETCH_INT_TO_FLOAT) { \ + v_out = float(as_type<int>(v_in)); \ + } \ + else if (ATTR == GPU_FETCH_INT_TO_FLOAT_UNIT) { \ + v_out = float(as_type<int>(v_in)) / float(__INT_MAX__); \ + } \ + else { \ + v_out = v_in; \ + } + +#define internal_vertex_attribute_convert_read_float2(ATTR, v_in, v_out) \ + if (ATTR == GPU_FETCH_INT_TO_FLOAT) { \ + v_out = float2(as_type<int2>(v_in)); \ + } \ + else if (ATTR == GPU_FETCH_INT_TO_FLOAT_UNIT) { \ + v_out = float2(as_type<int2>(v_in)) / float2(__INT_MAX__); \ + } \ + else { \ + v_out = v_in; \ + } + +#define internal_vertex_attribute_convert_read_float3(ATTR, v_in, v_out) \ + if (ATTR == GPU_FETCH_INT_TO_FLOAT) { \ + v_out = float3(as_type<int3>(v_in)); \ + } \ + else if (ATTR == GPU_FETCH_INT_TO_FLOAT_UNIT) { \ + v_out = float3(as_type<int3>(v_in)) / float3(__INT_MAX__); \ + } \ + else { \ + v_out = v_in; \ + } + +#define internal_vertex_attribute_convert_read_float4(ATTR, v_in, v_out) \ + if (ATTR == GPU_FETCH_INT_TO_FLOAT) { \ + v_out = float4(as_type<int4>(v_in)); \ + } \ + else if (ATTR == GPU_FETCH_INT_TO_FLOAT_UNIT) { \ + v_out = float4(as_type<int4>(v_in)) / float4(__INT_MAX__); \ + } \ + else { \ + v_out = v_in; \ + } diff --git a/source/blender/gpu/shaders/metal/mtl_shader_defines.msl b/source/blender/gpu/shaders/metal/mtl_shader_defines.msl new file mode 100644 index 00000000000..3b32783620d --- /dev/null +++ b/source/blender/gpu/shaders/metal/mtl_shader_defines.msl @@ -0,0 +1,1065 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +/** Special header for mapping commonly defined tokens to API-specific variations. + * Where possible, this will adhere closely to base GLSL, where semantics are the same. + * However, host code shader code may need modifying to support types where necessary variations + * exist between APIs but are not expressed through the source. (e.g. distinctio between depth2d + * and texture2d types in metal). + */ + +/* Base instance with offsets. */ +#define gpu_BaseInstance gl_BaseInstanceARB +#define gpu_InstanceIndex (gl_InstanceID + gpu_BaseInstance) + +/* derivative signs. */ +#define DFDX_SIGN 1.0 +#define DFDY_SIGN 1.0 + +/* Type definitions. */ +#define vec2 float2 +#define vec3 float3 +#define vec4 float4 +#define mat2 float2x2 +#define mat2x2 float2x2 +#define mat3 float3x3 +#define mat4 float4x4 +#define ivec2 int2 +#define ivec3 int3 +#define ivec4 int4 +#define uvec2 uint2 +#define uvec3 uint3 +#define uvec4 uint4 +/* MTLBOOL is used for native boolean's generated by the Metal backend, to avoid type-emulation + * for GLSL bools, which are treated as integers. */ +#define MTLBOOL bool +#define bool int +#define bvec2 bool2 +#define bvec3 bool3 +#define bvec4 bool4 +#define vec3_1010102_Unorm uint +#define vec3_1010102_Inorm int + +/* Strip GLSL Decorators. */ +#define in +#define flat +#define smooth +#define noperspective +#define layout(std140) struct +#define uniform + +/* Used to replace 'out' in function parameters with threadlocal reference + * shortened to avoid expanding the glsl source string. */ +#define THD thread + +/* Generate wrapper structs for combined texture and sampler type. */ +#ifdef USE_ARGUMENT_BUFFER_FOR_SAMPLERS +# define COMBINED_SAMPLER_TYPE(STRUCT_NAME, TEX_TYPE) \ + template<typename T, access A = access::sample> struct STRUCT_NAME { \ + thread TEX_TYPE<T, A> *texture; \ + constant sampler *samp; \ + } +#else +# define COMBINED_SAMPLER_TYPE(STRUCT_NAME, TEX_TYPE) \ + template<typename T, access A = access::sample> struct STRUCT_NAME { \ + thread TEX_TYPE<T, A> *texture; \ + thread sampler *samp; \ + } +#endif + +/* Add any types as needed. */ +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_1d, texture1d); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_1d_array, texture1d_array); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_2d, texture2d); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_depth_2d, depth2d); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_2d_array, texture2d_array); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_depth_2d_array, depth2d_array); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_3d, texture3d); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_buffer, texture_buffer); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_cube, texturecube); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_cube_array, texturecube_array); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_depth_cube, texturecube_array); +COMBINED_SAMPLER_TYPE(_mtl_combined_image_sampler_depth_cube_array, texturecube_array); + +/* Sampler struct for argument buffer. */ +#ifdef USE_ARGUMENT_BUFFER_FOR_SAMPLERS +struct SStruct { + array<sampler, ARGUMENT_BUFFER_NUM_SAMPLERS> sampler_args [[id(0)]]; +}; +#endif + +/* Samplers as function parameters. */ +#define sampler1D thread _mtl_combined_image_sampler_1d<float> +#define sampler1DArray thread _mtl_combined_image_sampler_1d_array<float> +#define sampler2D thread _mtl_combined_image_sampler_2d<float> +#define depth2D thread _mtl_combined_image_sampler_depth_2d<float> +#define sampler2DArray thread _mtl_combined_image_sampler_2d_array<float> +#define sampler2DArrayShadow thread _mtl_combined_image_sampler_depth_2d_array<float> +#define depth2DArrayShadow thread _mtl_combined_image_sampler_depth_2d_array<float> +#define sampler3D thread _mtl_combined_image_sampler_3d<float> +#define samplerBuffer thread _mtl_combined_image_sampler_buffer<float, access::read> +#define samplerCube thread _mtl_combined_image_sampler_cube<float> +#define samplerCubeArray thread _mtl_combined_image_sampler_cube_array<float> + +#define usampler1D thread _mtl_combined_image_sampler_1d<uint> +#define usampler1DArray thread _mtl_combined_image_sampler_1d_array<uint> +#define usampler2D thread _mtl_combined_image_sampler_2d<uint> +#define udepth2D thread _mtl_combined_image_sampler_depth_2d<uint> +#define usampler2DArray thread _mtl_combined_image_sampler_2d_array<uint> +#define usampler2DArrayShadow thread _mtl_combined_image_sampler_depth_2d_array<uint> +#define udepth2DArrayShadow thread _mtl_combined_image_sampler_depth_2d_array<uint> +#define usampler3D thread _mtl_combined_image_sampler_3d<uint> +#define usamplerBuffer thread _mtl_combined_image_sampler_buffer<uint, access::read> +#define usamplerCube thread _mtl_combined_image_sampler_cube<uint> +#define usamplerCubeArray thread _mtl_combined_image_sampler_cube_array<uint> + +#define isampler1D thread _mtl_combined_image_sampler_1d<int> +#define isampler1DArray thread _mtl_combined_image_sampler_1d_array<int> +#define isampler2D thread _mtl_combined_image_sampler_2d<int> +#define idepth2D thread _mtl_combined_image_sampler_depth_2d<int> +#define isampler2DArray thread _mtl_combined_image_sampler_2d_array<int> +#define isampler2DArrayShadow thread _mtl_combined_image_sampler_depth_2d_array<int> +#define idepth2DArrayShadow thread _mtl_combined_image_sampler_depth_2d_array<int> +#define isampler3D thread _mtl_combined_image_sampler_3d<int> +#define isamplerBuffer thread _mtl_combined_image_sampler_buffer<int, access::read> +#define isamplerCube thread _mtl_combined_image_sampler_cube<int> +#define isamplerCubeArray thread _mtl_combined_image_sampler_cube_array<int> + +/* Vector accessor aliases. */ +#define st xy + +/* Texture functions. */ +#define texelFetch _texelFetch_internal +#define texelFetchOffset(__tex, __texel, __lod, __offset) \ + _texelFetch_internal(__tex, __texel, __lod, __offset) +#define texture2(__tex, __uv) _texture_internal_samp(__tex, __uv) +#define texture3(__tex, __uv, _bias) _texture_internal_bias(__tex, __uv, bias(float(_bias))) +#define textureLod(__tex, __uv, __lod) _texture_internal_level(__tex, __uv, level(float(__lod))) +#define textureLodOffset(__tex, __uv, __lod, __offset) \ + _texture_internal_level(__tex, __uv, level(float(__lod)), __offset) +#define textureGather2(__tex, __uv) _texture_gather_internal(__tex, __uv, 0) +#define textureGather3(__tex, __uv, __comp) _texture_gather_internal(__tex, __uv, __comp) +#define textureGatherOffset(__tex, __offset, __uv, __comp) \ + _texture_gather_internal(__tex, __uv, __comp, __offset) + +#define TEXURE_MACRO(_1, _2, _3, TEXNAME, ...) TEXNAME +#define texture(...) TEXURE_MACRO(__VA_ARGS__, texture3, texture2)(__VA_ARGS__) +#define textureGather(...) TEXURE_MACRO(__VA_ARGS__, textureGather3, textureGather2)(__VA_ARGS__) + +/* Texture-write functions. */ +#define imageStore(_tex, _coord, _value) _texture_write_internal(_tex, _coord, _value) + +/* Singular return values from texture functions of type DEPTH are often indexed with either .r or + * .x. This is a lightweight wrapper type for handling this syntax. */ +union _msl_return_float { + float r; + float x; + inline operator float() const + { + return r; + } +}; + +/* Add custom texture sampling/reading routines for each type to account for special return cases, + * e.g. returning a float with an r parameter Note: Cannot use template specialization for input + * type, as return types are specific to the signature of 'tex'. */ +/* Texture Read. */ +template<typename S, typename T, access A> +inline vec<S, 4> _texelFetch_internal(thread _mtl_combined_image_sampler_1d<S, A> tex, T texel) +{ + float w = tex.texture->get_width(); + if (texel >= 0 && texel < w) { + return tex.texture->read(uint(texel)); + } + else { + return vec<S, 4>(0); + } +} + +template<typename S, typename T> +inline vec<S, 4> _texelFetch_internal( + const thread _mtl_combined_image_sampler_buffer<S, access::read> tex, T texel) +{ + float w = tex.texture->get_width(); + if (texel >= 0 && texel < w) { + return tex.texture->read(uint(texel)); + } + else { + return vec<S, 4>(0); + } +} + +template<typename S, typename T, access A> +inline vec<S, 4> _texelFetch_internal(thread _mtl_combined_image_sampler_1d<S, A> tex, + T texel, + uint lod, + T offset = 0) +{ + float w = tex.texture->get_width(); + if ((texel + offset) >= 0 && (texel + offset) < w) { + /* LODs not supported for 1d textures. This must be zero. */ + return tex.texture->read(uint(texel + offset), 0); + } + else { + return vec<S, 4>(0); + } +} + +template<typename S, typename T, access A> +inline vec<S, 4> _texelFetch_internal(thread _mtl_combined_image_sampler_1d<S, A> tex, + vec<T, 1> texel, + uint lod, + vec<T, 1> offset = 0) +{ + float w = tex.texture->get_width(); + if ((texel + offset) >= 0 && (texel + offset) < w) { + /* LODs not supported for 1d textures. This must be zero. */ + return tex.texture->read(uint(texel + offset), 0); + } + else { + return vec<S, 4>(0); + } +} + +template<typename S, typename T, int n, access A> +inline vec<S, 4> _texelFetch_internal(thread _mtl_combined_image_sampler_1d<S, A> tex, + vec<T, n> texel, + uint lod, + vec<T, n> offset = vec<T, n>(0)) +{ + float w = tex.texture->get_width(); + if ((texel.x + offset.x) >= 0 && (texel.x + offset.x) < w) { + /* LODs not supported for 1d textures. This must be zero. */ + return tex.texture->read(uint(texel.x + offset.x), 0); + } + else { + return vec<S, 4>(0); + } +} + +template<typename S, typename T, access A> +inline vec<S, 4> _texelFetch_internal(thread _mtl_combined_image_sampler_1d_array<S, A> tex, + vec<T, 2> texel, + uint lod, + vec<T, 2> offset = vec<T, 2>(0, 0)) +{ + + float w = tex.texture->get_width(); + float h = tex.texture->get_array_size(); + if ((texel.x + offset.x) >= 0 && (texel.x + offset.x) < w && (texel.y + offset.y) >= 0 && + (texel.y + offset.y) < h) { + /* LODs not supported for 1d textures. This must be zero. */ + return tex.texture->read(uint(texel.x + offset.x), uint(texel.y + offset.y), 0); + } + else { + return vec<S, 4>(0); + } +} + +template<typename S, typename T, access A> +inline vec<S, 4> _texelFetch_internal(thread _mtl_combined_image_sampler_2d<S, A> tex, + vec<T, 2> texel, + uint lod, + vec<T, 2> offset = vec<T, 2>(0)) +{ + + float w = tex.texture->get_width() >> lod; + float h = tex.texture->get_height() >> lod; + if ((texel.x + offset.x) >= 0 && (texel.x + offset.x) < w && (texel.y + offset.y) >= 0 && + (texel.y + offset.y) < h) { + return tex.texture->read(uint2(texel + offset), lod); + } + else { + return vec<S, 4>(0); + } +} + +template<typename S, typename T, access A> +inline vec<S, 4> _texelFetch_internal(thread _mtl_combined_image_sampler_2d_array<S, A> tex, + vec<T, 3> texel, + uint lod, + vec<T, 3> offset = vec<T, 3>(0)) +{ + float w = tex.texture->get_width() >> lod; + float h = tex.texture->get_height() >> lod; + float d = tex.texture->get_array_size(); + if ((texel.x + offset.x) >= 0 && (texel.x + offset.x) < w && (texel.y + offset.y) >= 0 && + (texel.y + offset.y) < h && (texel.z + offset.z) >= 0 && (texel.z + offset.z) < d) { + return tex.texture->read(uint2(texel.xy + offset.xy), uint(texel.z + offset.z), lod); + } + else { + return vec<S, 4>(0); + } +} + +template<typename S, typename T, access A> +inline vec<S, 4> _texelFetch_internal(thread _mtl_combined_image_sampler_3d<S, A> tex, + vec<T, 3> texel, + uint lod, + vec<T, 3> offset = vec<T, 3>(0)) +{ + + float w = tex.texture->get_width() >> lod; + float h = tex.texture->get_height() >> lod; + float d = tex.texture->get_depth() >> lod; + if ((texel.x + offset.x) >= 0 && (texel.x + offset.x) < w && (texel.y + offset.y) >= 0 && + (texel.y + offset.y) < h && (texel.z + offset.z) >= 0 && (texel.z + offset.z) < d) { + return tex.texture->read(uint3(texel + offset), lod); + } + else { + return vec<S, 4>(0); + } +} + +template<typename T, access A> +inline _msl_return_float _texelFetch_internal( + thread _mtl_combined_image_sampler_depth_2d<float, A> tex, + vec<T, 2> texel, + uint lod, + vec<T, 2> offset = vec<T, 2>(0)) +{ + + float w = tex.texture->get_width() >> lod; + float h = tex.texture->get_height() >> lod; + if ((texel.x + offset.x) >= 0 && (texel.x + offset.x) < w && (texel.y + offset.y) >= 0 && + (texel.y + offset.y) < h) { + _msl_return_float fl = {tex.texture->read(uint2(texel + offset), lod)}; + return fl; + } + else { + _msl_return_float fl = {0}; + return fl; + } +} + +template<typename S, typename T, access A> +inline vec<S, 4> _texture_internal_samp(thread _mtl_combined_image_sampler_2d_array<S, A> tex, + vec<T, 3> texel, + uint lod, + vec<T, 3> offset = vec<T, 3>(0)) +{ + + float w = tex.texture->get_width() >> lod; + float h = tex.texture->get_height() >> lod; + float d = tex.texture->get_array_size(); + if ((texel.x + offset.x) >= 0 && (texel.x + offset.x) < w && (texel.y + offset.y) >= 0 && + (texel.y + offset.y) < h && (texel.z + offset.z) >= 0 && (texel.z + offset.z) < d) { + return tex.texture->read(uint2(texel.xy + offset.xy), uint(texel.z + offset.z), lod); + } + else { + return vec<S, 4>(0); + } +} + +/* Sample. */ +template<typename T> +inline vec<T, 4> _texture_internal_samp( + thread _mtl_combined_image_sampler_1d<T, access::sample> tex, float u) +{ + return tex.texture->sample(*tex.samp, u); +} + +inline float4 _texture_internal_samp( + thread _mtl_combined_image_sampler_1d_array<float, access::sample> tex, float2 ua) +{ + return tex.texture->sample(*tex.samp, ua.x, uint(ua.y)); +} + +inline int4 _texture_internal_samp(thread _mtl_combined_image_sampler_2d<int, access::sample> tex, + float2 uv) +{ + return tex.texture->sample(*tex.samp, uv); +} + +inline uint4 _texture_internal_samp( + thread _mtl_combined_image_sampler_2d<uint, access::sample> tex, float2 uv) +{ + return tex.texture->sample(*tex.samp, uv); +} + +inline float4 _texture_internal_samp( + thread _mtl_combined_image_sampler_2d<float, access::sample> tex, float2 uv) +{ + return tex.texture->sample(*tex.samp, uv); +} + +inline _msl_return_float _texture_internal_samp( + thread _mtl_combined_image_sampler_depth_2d<float, access::sample> tex, float2 uv) +{ + _msl_return_float fl = {tex.texture->sample(*tex.samp, uv)}; + return fl; +} + +template<typename T> +inline vec<T, 4> _texture_internal_samp( + thread _mtl_combined_image_sampler_3d<T, access::sample> tex, float3 uvw) +{ + return tex.texture->sample(*tex.samp, uvw); +} + +template<typename T> +inline vec<T, 4> _texture_internal_samp( + thread _mtl_combined_image_sampler_2d_array<T, access::sample> tex, float3 uva) +{ + return tex.texture->sample(*tex.samp, uva.xy, uint(uva.z)); +} + +inline _msl_return_float _texture_internal_samp( + thread _mtl_combined_image_sampler_depth_2d_array<float, access::sample> tex, float3 uva) +{ + _msl_return_float fl = {tex.texture->sample(*tex.samp, uva.xy, uint(uva.z))}; + return fl; +} + +inline _msl_return_float _texture_internal_samp( + thread _mtl_combined_image_sampler_depth_2d_array<float, access::sample> tex, float4 uvac) +{ + _msl_return_float fl = { + tex.texture->sample_compare(*tex.samp, uvac.xy, uint(uvac.z), uvac.w, level(0))}; + return fl; +} + +template<typename T> +inline vec<T, 4> _texture_internal_samp( + thread _mtl_combined_image_sampler_cube<T, access::sample> tex, float3 uvs) +{ + return tex.texture->sample(*tex.samp, uvs.xyz); +} + +template<typename T> +inline vec<T, 4> _texture_internal_samp( + thread _mtl_combined_image_sampler_cube_array<T, access::sample> tex, float4 coord_a) +{ + return tex.texture->sample(*tex.samp, coord_a.xyz, uint(coord_a.w)); +} + +/* Sample Level. */ +template<typename T> +inline vec<T, 4> _texture_internal_level( + thread _mtl_combined_image_sampler_1d<T, access::sample> tex, + float u, + level options, + int offset = 0) +{ + /* LODs not supported for 1d textures. This must be zero. */ + return tex.texture->sample(*tex.samp, u); +} + +inline float4 _texture_internal_level( + thread _mtl_combined_image_sampler_1d_array<float, access::sample> tex, + float2 ua, + level options, + int offset = 0) +{ + /* LODs not supported for 1d textures. This must be zero. */ + return tex.texture->sample(*tex.samp, ua.x, uint(ua.y)); +} + +inline int4 _texture_internal_level(thread _mtl_combined_image_sampler_2d<int, access::sample> tex, + float2 uv, + level options, + int2 offset = int2(0)) +{ + return tex.texture->sample(*tex.samp, uv, options, offset); +} + +inline uint4 _texture_internal_level( + thread _mtl_combined_image_sampler_2d<uint, access::sample> tex, + float2 uv, + level options, + int2 offset = int2(0)) +{ + return tex.texture->sample(*tex.samp, uv, options, offset); +} + +inline float4 _texture_internal_level( + thread _mtl_combined_image_sampler_2d<float, access::sample> tex, + float2 uv, + level options, + int2 offset = int2(0)) +{ + return tex.texture->sample(*tex.samp, uv, options, offset); +} + +inline _msl_return_float _texture_internal_level( + thread _mtl_combined_image_sampler_depth_2d<float, access::sample> tex, + float2 uv, + level options, + int2 offset = int2(0)) +{ + _msl_return_float fl = {tex.texture->sample(*tex.samp, uv, options, offset)}; + return fl; +} + +template<typename T> +inline vec<T, 4> _texture_internal_level( + thread _mtl_combined_image_sampler_3d<T, access::sample> tex, + float3 uvw, + level options = level(0), + int3 offset = int3(0)) +{ + return tex.texture->sample(*tex.samp, uvw, options, offset); +} + +template<typename T> +inline vec<T, 4> _texture_internal_level( + thread _mtl_combined_image_sampler_2d_array<T, access::sample> tex, + float3 uva, + level options = level(0), + int2 offset = int2(0)) +{ + return tex.texture->sample(*tex.samp, uva.xy, uint(uva.z), options, offset); +} + +inline _msl_return_float _texture_internal_level( + thread _mtl_combined_image_sampler_depth_2d_array<float, access::sample> tex, + float3 uva, + level options = level(0), + int2 offset = int2(0)) +{ + _msl_return_float fl = {tex.texture->sample(*tex.samp, uva.xy, uint(uva.z), options, offset)}; + return fl; +} + +inline _msl_return_float _texture_internal_level( + thread _mtl_combined_image_sampler_depth_2d_array<float, access::sample> tex, + float4 uvac, + level options = level(0), + int2 offset = int2(0)) +{ + _msl_return_float fl = { + tex.texture->sample_compare(*tex.samp, uvac.xy, uint(uvac.z), uvac.w, level(0), offset)}; + return fl; +} + +template<typename T> +inline vec<T, 4> _texture_internal_level( + thread _mtl_combined_image_sampler_cube<T, access::sample> tex, + float3 uvs, + level options = level(0), + int2 offset = int2(0)) +{ + return tex.texture->sample(*tex.samp, uvs.xyz, options); +} + +template<typename T> +inline vec<T, 4> _texture_internal_level( + thread _mtl_combined_image_sampler_cube_array<T, access::sample> tex, + float4 coord_a, + level options = level(0), + int3 offset = int3(0)) +{ + return tex.texture->sample(*tex.samp, coord_a.xyz, uint(coord_a.w), options); +} + +/* Sample Bias. */ +template<typename T> +inline vec<T, 4> _texture_internal_bias( + thread _mtl_combined_image_sampler_1d<T, access::sample> tex, + float u, + bias options = bias(0.0), + int offset = 0) +{ + return tex.texture->sample(*tex.samp, u); +} + +inline float4 _texture_internal_bias( + thread _mtl_combined_image_sampler_2d<float, access::sample> tex, + float2 uv, + bias options = bias(0.0), + int2 offset = int2(0)) +{ + return tex.texture->sample(*tex.samp, uv, options, offset); +} + +inline _msl_return_float _texture_internal_bias( + thread _mtl_combined_image_sampler_depth_2d<float, access::sample> tex, + float2 uv, + bias options = bias(0), + int2 offset = int2(0)) +{ + _msl_return_float fl = {tex.texture->sample(*tex.samp, uv, options, offset)}; + return fl; +} + +/* Texture Gather. */ +component int_to_component(const int comp) +{ + switch (comp) { + default: + case 0: + return component::x; + case 1: + return component::y; + case 2: + return component::z; + case 3: + return component::w; + } + return component::x; +} + +inline float4 _texture_gather_internal( + thread _mtl_combined_image_sampler_depth_2d<float, access::sample> tex, + float2 uv, + const int comp = 0, + int2 offset = int2(0)) +{ + return tex.texture->gather(*tex.samp, uv, offset); +} + +template<typename T> +inline vec<T, 4> _texture_gather_internal( + thread _mtl_combined_image_sampler_2d<T, access::sample> tex, + float2 uv, + const int comp = 0, + int2 offset = int2(0)) +{ + return tex.texture->gather(*tex.samp, uv, offset); +} + +template<typename T> +inline vec<T, 4> _texture_gather_internal( + thread _mtl_combined_image_sampler_2d_array<T, access::sample> tex, + float2 uv, + const int comp = 0, + int2 offset = int2(0)) +{ + return tex.texture->gather(*tex.samp, uv, offset); +} + +/* Texture write support. */ +template<typename S, typename T, access A> +inline void _texture_write_internal(thread _mtl_combined_image_sampler_2d<S, A> tex, + T _coord, + vec<S, 4> value) +{ + float w = tex.texture->get_width(); + float h = tex.texture->get_height(); + if (_coord.x >= 0 && _coord.x < w && _coord.y >= 0 && _coord.y < h) { + tex.texture->write(value, uint2(_coord.xy)); + } +} + +template<typename S, typename T, access A> +inline void _texture_write_internal(thread _mtl_combined_image_sampler_3d<S, A> tex, + T _coord, + vec<S, 4> value) +{ + float w = tex.texture->get_width(); + float h = tex.texture->get_height(); + float d = tex.texture->get_depth(); + if (_coord.x >= 0 && _coord.x < w && _coord.y >= 0 && _coord.y < h && _coord.z >= 0 && + _coord.z < d) { + tex.texture->write(value, uint3(_coord.xyz)); + } +} + +/* SSBO Vertex Fetch Mode. */ +#ifdef MTL_SSBO_VERTEX_FETCH +/* Enabled when geometry is passed via raw buffer bindings, rather than using + * vertex assembly in the vertex-descriptor. + * + * To describe the layout of input attribute data, we will generate uniforms (defaulting to 0) + * with the names per unique input attribute with name `attr`: + * + * - uniform_ssbo_stride_##attr -- Representing the stride between element. + * - uniform_ssbo_offset_##attr -- Representing the base offset within the vertex. + * - uniform_ssbo_fetchmode_##attr - Whether using per-vertex (=0) or per-instance fetch (=1). + * - uniform_ssbo_vbo_id_##attr - buffer binding index for VBO with data for this attribute. + * - uniform_ssbo_type_##attr - The type of data in the currently bound buffer. + * + * If the uniform_ssbo_type_* does not match with the desired type, then it is the responsibility + * of the shader to perform the conversion. Types should always be read as the raw attribute type, + * and then converted. e.g. If the uniform_ssbo_type_* is `int`, but we want to read it to be + * normalized to a float. + * The implementation should query the attribute type using vertex_fetch_get_attr_type(attr_name): + * + * float fweight = 0.0; + * if(vertex_fetch_get_attr_type(in_weight) == GPU_SHADER_ATTR_TYPE_INT) { + * int iweight = vertex_fetch_attribute(gl_VertexID, in_weight, int); + * fweight = (float)iweight/(float)INT32_MAX; + * } else { + * fweight = = vertex_fetch_attribute(gl_VertexID, in_weight, float); + * } + * + * Note: These uniforms are generated as part of the same data block used for regular uniforms + * and attribute data is written prior to each draw call, depending on the configuration of + * the vertex descriptor for an MTLBatch or MTLImmedaite call. */ +# define PPCAT_NX(A, B) A##B +# define PPCAT(A, B) PPCAT_NX(A, B) + +# define RESOLVE_VERTEX(v_id) \ + ((UNIFORM_SSBO_USES_INDEXED_RENDERING_STR > 0) ? \ + ((UNIFORM_SSBO_INDEX_MODE_U16_STR > 0) ? MTL_INDEX_DATA_U16[v_id] : \ + MTL_INDEX_DATA_U32[v_id]) : \ + v_id) +# define ATTR_TYPE(attr) PPCAT(SSBO_ATTR_TYPE_, attr) +# define vertex_fetch_attribute_raw(n, attr, type) \ + (reinterpret_cast<constant type *>( \ + &MTL_VERTEX_DATA[PPCAT(UNIFORM_SSBO_VBO_ID_STR, attr)] \ + [(PPCAT(UNIFORM_SSBO_STRIDE_STR, attr) * \ + ((PPCAT(UNIFORM_SSBO_FETCHMODE_STR, attr)) ? gl_InstanceID : n)) + \ + PPCAT(UNIFORM_SSBO_OFFSET_STR, attr)]))[0] +# define vertex_fetch_attribute(n, attr, type) \ + vertex_fetch_attribute_raw(RESOLVE_VERTEX(n), attr, type) +# define vertex_id_from_index_id(n) RESOLVE_VERTEX(n) +# define vertex_fetch_get_input_prim_type() UNIFORM_SSBO_INPUT_PRIM_TYPE_STR +# define vertex_fetch_get_input_vert_count() UNIFORM_SSBO_INPUT_VERT_COUNT_STR +# define vertex_fetch_get_attr_type(attr) PPCAT(UNIFORM_SSBO_TYPE_STR, attr) + +/* Must mirror GPU_primitive.h. */ +# define GPU_PRIM_POINTS 0 +# define GPU_PRIM_LINES 1 +# define GPU_PRIM_TRIS 2 +# define GPU_PRIM_LINE_STRIP 3 +# define GPU_PRIM_LINE_LOOP 4 +# define GPU_PRIM_TRI_STRIP 5 +# define GPU_PRIM_TRI_FAN 6 +# define GPU_PRIM_LINES_ADJ 7 +# define GPU_PRIM_TRIS_ADJ 8 +# define GPU_PRIM_LINE_STRIP_ADJ 9 +#endif + +/* Common Functions. */ +#define dFdx(x) dfdx(x) +#define dFdy(x) dfdy(x) +#define mod(x, y) _mtlmod(x, y) +#define discard discard_fragment() +#define inversesqrt rsqrt + +inline float radians(float deg) +{ + /* Constant factor: M_PI_F/180.0. */ + return deg * 0.01745329251f; +} + +inline float degrees(float rad) +{ + /* Constant factor: 180.0/M_PI_F. */ + return rad * 57.2957795131; +} + +#define select(A, B, C) mix(A, B, C) + +/* Type conversions and type truncations. */ +inline float4 to_float4(float3 val) +{ + return float4(val, 1.0); +} + +/* Type conversions and type truncations (Utility Functions). */ +inline float3x3 mat4_to_mat3(float4x4 matrix) +{ + return float3x3(matrix[0].xyz, matrix[1].xyz, matrix[2].xyz); +} + +inline int floatBitsToInt(float f) +{ + return as_type<int>(f); +} + +inline int2 floatBitsToInt(float2 f) +{ + return as_type<int2>(f); +} + +inline int3 floatBitsToInt(float3 f) +{ + return as_type<int3>(f); +} + +inline int4 floatBitsToInt(float4 f) +{ + return as_type<int4>(f); +} + +inline uint floatBitsToUint(float f) +{ + return as_type<uint>(f); +} + +inline uint2 floatBitsToUint(float2 f) +{ + return as_type<uint2>(f); +} + +inline uint3 floatBitsToUint(float3 f) +{ + return as_type<uint3>(f); +} + +inline uint4 floatBitsToUint(float4 f) +{ + return as_type<uint4>(f); +} + +inline float intBitsToFloat(int f) +{ + return as_type<float>(f); +} + +inline float2 intBitsToFloat(int2 f) +{ + return as_type<float2>(f); +} + +inline float3 intBitsToFloat(int3 f) +{ + return as_type<float3>(f); +} + +inline float4 intBitsToFloat(int4 f) +{ + return as_type<float4>(f); +} + +/* Texture size functions. Add texture types as needed. */ +template<typename T, access A> +int textureSize(thread _mtl_combined_image_sampler_1d<T, A> image, uint lod) +{ + return int(image.texture->get_width()); +} + +template<typename T, access A> +int2 textureSize(thread _mtl_combined_image_sampler_1d_array<T, A> image, uint lod) +{ + return int2(image.texture->get_width(), image.texture->get_array_size()); +} + +template<typename T, access A> +int2 textureSize(thread _mtl_combined_image_sampler_2d<T, A> image, uint lod) +{ + return int2(image.texture->get_width(lod), image.texture->get_height(lod)); +} + +template<typename T, access A> +int2 textureSize(thread _mtl_combined_image_sampler_depth_2d<T, A> image, uint lod) +{ + return int2(image.texture->get_width(lod), image.texture->get_height(lod)); +} + +template<typename T, access A> +int3 textureSize(thread _mtl_combined_image_sampler_2d_array<T, A> image, uint lod) +{ + return int3(image.texture->get_width(lod), + image.texture->get_height(lod), + image.texture->get_array_size()); +} + +template<typename T, access A> +int3 textureSize(thread _mtl_combined_image_sampler_depth_2d_array<T, A> image, uint lod) +{ + return int3(image.texture->get_width(lod), + image.texture->get_height(lod), + image.texture->get_array_size()); +} + +template<typename T, access A> +int2 textureSize(thread _mtl_combined_image_sampler_cube<T, A> image, uint lod) +{ + return int2(image.texture->get_width(lod), image.texture->get_height(lod)); +} + +template<typename T, access A> +int3 textureSize(thread _mtl_combined_image_sampler_3d<T, A> image, uint lod) +{ + return int3(image.texture->get_width(lod), + image.texture->get_height(lod), + image.texture->get_depth(lod)); +} + +/* Equality and comparison functions. */ +#define lessThan(a, b) ((a) < (b)) +#define lessThanEqual(a, b) ((a) <= (b)) +#define greaterThan(a, b) ((a) > (b)) +#define greaterThanEqual(a, b) ((a) >= (b)) +#define equal(a, b) ((a) == (b)) +#define notEqual(a, b) ((a) != (b)) + +template<typename T, int n> bool all(vec<T, n> x) +{ + bool _all = true; + for (int i = 0; i < n; i++) { + _all = _all && (x[i] > 0); + } + return _all; +} + +template<typename T, int n> bool any(vec<T, n> x) +{ + bool _any = false; + for (int i = 0; i < n; i++) { + _any = _any || (x[i] > 0); + } + return _any; +} + +/* Modulo functionality. */ +int _mtlmod(int a, int b) +{ + return a - b * (a / b); +} + +template<typename T, int n> vec<T, n> _mtlmod(vec<T, n> x, vec<T, n> y) +{ + return x - y * floor(x / y); +} + +template<typename T, int n, typename U> vec<T, n> _mtlmod(vec<T, n> x, U y) +{ + return x - vec<T, n>(y) * floor(x / vec<T, n>(y)); +} + +template<typename T, typename U, int n> vec<U, n> _mtlmod(T x, vec<U, n> y) +{ + return vec<U, n>(x) - y * floor(vec<U, n>(x) / y); +} + +/* Mathematical functions. */ +template<typename T> T atan(T y, T x) +{ + return atan2(y, x); +} + +/* Matrix Inverse. */ +float4x4 inverse(float4x4 a) +{ + float b00 = a[0][0] * a[1][1] - a[0][1] * a[1][0]; + float b01 = a[0][0] * a[1][2] - a[0][2] * a[1][0]; + float b02 = a[0][0] * a[1][3] - a[0][3] * a[1][0]; + float b03 = a[0][1] * a[1][2] - a[0][2] * a[1][1]; + float b04 = a[0][1] * a[1][3] - a[0][3] * a[1][1]; + float b05 = a[0][2] * a[1][3] - a[0][3] * a[1][2]; + float b06 = a[2][0] * a[3][1] - a[2][1] * a[3][0]; + float b07 = a[2][0] * a[3][2] - a[2][2] * a[3][0]; + float b08 = a[2][0] * a[3][3] - a[2][3] * a[3][0]; + float b09 = a[2][1] * a[3][2] - a[2][2] * a[3][1]; + float b10 = a[2][1] * a[3][3] - a[2][3] * a[3][1]; + float b11 = a[2][2] * a[3][3] - a[2][3] * a[3][2]; + + float invdet = 1.0 / (b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06); + + return float4x4(a[1][1] * b11 - a[1][2] * b10 + a[1][3] * b09, + a[0][2] * b10 - a[0][1] * b11 - a[0][3] * b09, + a[3][1] * b05 - a[3][2] * b04 + a[3][3] * b03, + a[2][2] * b04 - a[2][1] * b05 - a[2][3] * b03, + a[1][2] * b08 - a[1][0] * b11 - a[1][3] * b07, + a[0][0] * b11 - a[0][2] * b08 + a[0][3] * b07, + a[3][2] * b02 - a[3][0] * b05 - a[3][3] * b01, + a[2][0] * b05 - a[2][2] * b02 + a[2][3] * b01, + a[1][0] * b10 - a[1][1] * b08 + a[1][3] * b06, + a[0][1] * b08 - a[0][0] * b10 - a[0][3] * b06, + a[3][0] * b04 - a[3][1] * b02 + a[3][3] * b00, + a[2][1] * b02 - a[2][0] * b04 - a[2][3] * b00, + a[1][1] * b07 - a[1][0] * b09 - a[1][2] * b06, + a[0][0] * b09 - a[0][1] * b07 + a[0][2] * b06, + a[3][1] * b01 - a[3][0] * b03 - a[3][2] * b00, + a[2][0] * b03 - a[2][1] * b01 + a[2][2] * b00) * + invdet; +} + +float3x3 inverse(float3x3 m) +{ + + float invdet = 1.0 / (m[0][0] * (m[1][1] * m[2][2] - m[2][1] * m[1][2]) - + m[1][0] * (m[0][1] * m[2][2] - m[2][1] * m[0][2]) + + m[2][0] * (m[0][1] * m[1][2] - m[1][1] * m[0][2])); + + float3x3 inverse(0); + inverse[0][0] = +(m[1][1] * m[2][2] - m[2][1] * m[1][2]); + inverse[1][0] = -(m[1][0] * m[2][2] - m[2][0] * m[1][2]); + inverse[2][0] = +(m[1][0] * m[2][1] - m[2][0] * m[1][1]); + inverse[0][1] = -(m[0][1] * m[2][2] - m[2][1] * m[0][2]); + inverse[1][1] = +(m[0][0] * m[2][2] - m[2][0] * m[0][2]); + inverse[2][1] = -(m[0][0] * m[2][1] - m[2][0] * m[0][1]); + inverse[0][2] = +(m[0][1] * m[1][2] - m[1][1] * m[0][2]); + inverse[1][2] = -(m[0][0] * m[1][2] - m[1][0] * m[0][2]); + inverse[2][2] = +(m[0][0] * m[1][1] - m[1][0] * m[0][1]); + inverse = inverse * invdet; + + return inverse; +} + +/* Additional overloads for builtin functions. */ +float distance(float x, float y) +{ + return abs(y - x); +} + +/* Overload for mix(A, B, float ratio). */ +template<typename T, int Size> vec<T, Size> mix(vec<T, Size> a, vec<T, Size> b, float val) +{ + return mix(a, b, vec<T, Size>(val)); +} + +/* Overload for mix(A, B, bvec<N>). */ +template<typename T, int Size> +vec<T, Size> mix(vec<T, Size> a, vec<T, Size> b, vec<int, Size> mask) +{ + vec<T, Size> result; + for (int i = 0; i < Size; i++) { + result[i] = mask[i] ? b[i] : a[i]; + } + return result; +} + +/* Using vec<bool, S> does not appear to work, splitting cases. */ +/* Overload for mix(A, B, bvec<N>). */ +template<typename T> vec<T, 4> mix(vec<T, 4> a, vec<T, 4> b, bvec4 mask) +{ + vec<T, 4> result; + for (int i = 0; i < 4; i++) { + result[i] = mask[i] ? b[i] : a[i]; + } + return result; +} + +/* Overload for mix(A, B, bvec<N>). */ +template<typename T> vec<T, 3> mix(vec<T, 3> a, vec<T, 3> b, bvec3 mask) +{ + vec<T, 3> result; + for (int i = 0; i < 3; i++) { + result[i] = mask[i] ? b[i] : a[i]; + } + return result; +} + +/* Overload for mix(A, B, bvec<N>). */ +template<typename T> vec<T, 2> mix(vec<T, 2> a, vec<T, 2> b, bvec2 mask) +{ + vec<T, 2> result; + for (int i = 0; i < 2; i++) { + result[i] = mask[i] ? b[i] : a[i]; + } + return result; +} + +/* Overload for mix(A, B, bvec<N>). */ +template<typename T> T mix(T a, T b, MTLBOOL mask) +{ + return (mask) ? b : a; +} + +template<typename T, unsigned int Size> bool is_zero(vec<T, Size> a) +{ + for (int i = 0; i < Size; i++) { + if (a[i] != T(0)) { + return false; + } + } + return true; +} + +/* Matrix conversion fallback. */ +mat3 MAT3(vec3 a, vec3 b, vec3 c) +{ + return mat3(a, b, c); +} +mat3 MAT3(float f) +{ + return mat3(f); +} +mat3 MAT3(mat4 m) +{ + return mat4_to_mat3(m); +}
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