diff options
Diffstat (limited to 'source/blender/gpu/shaders/compositor')
-rw-r--r-- | source/blender/gpu/shaders/compositor/compositor_bilateral_blur.glsl | 31 | ||||
-rw-r--r-- | source/blender/gpu/shaders/compositor/infos/compositor_bilateral_blur_info.hh | 13 |
2 files changed, 44 insertions, 0 deletions
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/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); |