Welcome to mirror list, hosted at ThFree Co, Russian Federation.

git.blender.org/blender.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
path: root/source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl
diff options
context:
space:
mode:
Diffstat (limited to 'source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl')
-rw-r--r--source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl269
1 files changed, 137 insertions, 132 deletions
diff --git a/source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl b/source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl
index afd219fb831..8a10962c6ef 100644
--- a/source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl
+++ b/source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl
@@ -6,15 +6,16 @@ uniform sampler2D depthBuffer;
uniform vec2 dofParams;
-#define dof_mul dofParams.x /* distance * aperturesize * invsensorsize */
-#define dof_bias dofParams.y /* aperturesize * invsensorsize */
+#define dof_mul dofParams.x /* distance * aperturesize * invsensorsize */
+#define dof_bias dofParams.y /* aperturesize * invsensorsize */
uniform vec4 bokehParams[2];
-#define bokeh_rotation bokehParams[0].x
-#define bokeh_ratio bokehParams[0].y
-#define bokeh_maxsize bokehParams[0].z
-#define bokeh_sides bokehParams[1] /* Polygon Bokeh shape number of sides (with precomputed vars) */
+#define bokeh_rotation bokehParams[0].x
+#define bokeh_ratio bokehParams[0].y
+#define bokeh_maxsize bokehParams[0].z
+#define bokeh_sides \
+ bokehParams[1] /* Polygon Bokeh shape number of sides (with precomputed vars) */
uniform vec2 nearFar; /* Near & far view depths values */
@@ -27,13 +28,17 @@ uniform vec2 nearFar; /* Near & far view depths values */
#define calculate_coc(zdepth) (dof_mul / zdepth - dof_bias)
#define linear_depth(z) \
- ((ProjectionMatrix[3][3] == 0.0) ? \
- (nearFar.x * nearFar.y) / (z * (nearFar.x - nearFar.y) + nearFar.y) : \
- z * (nearFar.y - nearFar.x) + nearFar.x) /* Only true for camera view! */
+ ((ProjectionMatrix[3][3] == 0.0) ? \
+ (nearFar.x * nearFar.y) / (z * (nearFar.x - nearFar.y) + nearFar.y) : \
+ z * (nearFar.y - nearFar.x) + nearFar.x) /* Only true for camera view! */
-#define weighted_sum(a, b, c, d, e) (a * e.x + b * e.y + c * e.z + d * e.w) / max(1e-6, dot(e, vec4(1.0)));
+#define weighted_sum(a, b, c, d, e) \
+ (a * e.x + b * e.y + c * e.z + d * e.w) / max(1e-6, dot(e, vec4(1.0)));
-float max_v4(vec4 v) { return max(max(v.x, v.y), max(v.z, v.w)); }
+float max_v4(vec4 v)
+{
+ return max(max(v.x, v.y), max(v.z, v.w));
+}
#define THRESHOLD 1.0
@@ -48,46 +53,46 @@ layout(location = 2) out vec2 cocData;
* Compute maximum CoC for near and far blur. */
void main(void)
{
- ivec4 uvs = ivec4(gl_FragCoord.xyxy) * 2 + ivec4(0, 0, 1, 1);
+ ivec4 uvs = ivec4(gl_FragCoord.xyxy) * 2 + ivec4(0, 0, 1, 1);
- /* custom downsampling */
- vec4 color1 = texelFetch(colorBuffer, uvs.xy, 0);
- vec4 color2 = texelFetch(colorBuffer, uvs.zw, 0);
- vec4 color3 = texelFetch(colorBuffer, uvs.zy, 0);
- vec4 color4 = texelFetch(colorBuffer, uvs.xw, 0);
+ /* custom downsampling */
+ vec4 color1 = texelFetch(colorBuffer, uvs.xy, 0);
+ vec4 color2 = texelFetch(colorBuffer, uvs.zw, 0);
+ vec4 color3 = texelFetch(colorBuffer, uvs.zy, 0);
+ vec4 color4 = texelFetch(colorBuffer, uvs.xw, 0);
- /* Leverage SIMD by combining 4 depth samples into a vec4 */
- vec4 depth;
- depth.r = texelFetch(depthBuffer, uvs.xy, 0).r;
- depth.g = texelFetch(depthBuffer, uvs.zw, 0).r;
- depth.b = texelFetch(depthBuffer, uvs.zy, 0).r;
- depth.a = texelFetch(depthBuffer, uvs.xw, 0).r;
+ /* Leverage SIMD by combining 4 depth samples into a vec4 */
+ vec4 depth;
+ depth.r = texelFetch(depthBuffer, uvs.xy, 0).r;
+ depth.g = texelFetch(depthBuffer, uvs.zw, 0).r;
+ depth.b = texelFetch(depthBuffer, uvs.zy, 0).r;
+ depth.a = texelFetch(depthBuffer, uvs.xw, 0).r;
- vec4 zdepth = linear_depth(depth);
+ vec4 zdepth = linear_depth(depth);
- /* Compute signed CoC for each depth samples */
- vec4 coc_near = calculate_coc(zdepth);
- vec4 coc_far = -coc_near;
+ /* Compute signed CoC for each depth samples */
+ vec4 coc_near = calculate_coc(zdepth);
+ vec4 coc_far = -coc_near;
- cocData.x = max(max_v4(coc_near), 0.0);
- cocData.y = max(max_v4(coc_far), 0.0);
+ cocData.x = max(max_v4(coc_near), 0.0);
+ cocData.y = max(max_v4(coc_far), 0.0);
- /* now we need to write the near-far fields premultiplied by the coc
- * also use bilateral weighting by each coc values to avoid bleeding. */
- vec4 near_weights = step(THRESHOLD, coc_near) * clamp(1.0 - abs(cocData.x - coc_near), 0.0, 1.0);
- vec4 far_weights = step(THRESHOLD, coc_far) * clamp(1.0 - abs(cocData.y - coc_far), 0.0, 1.0);
+ /* now we need to write the near-far fields premultiplied by the coc
+ * also use bilateral weighting by each coc values to avoid bleeding. */
+ vec4 near_weights = step(THRESHOLD, coc_near) * clamp(1.0 - abs(cocData.x - coc_near), 0.0, 1.0);
+ vec4 far_weights = step(THRESHOLD, coc_far) * clamp(1.0 - abs(cocData.y - coc_far), 0.0, 1.0);
# ifdef USE_ALPHA_DOF
- /* Premult */
- color1.rgb *= color1.a;
- color2.rgb *= color2.a;
- color3.rgb *= color3.a;
- color4.rgb *= color4.a;
+ /* Premult */
+ color1.rgb *= color1.a;
+ color2.rgb *= color2.a;
+ color3.rgb *= color3.a;
+ color4.rgb *= color4.a;
# endif
- /* now write output to weighted buffers. */
- nearColor = weighted_sum(color1, color2, color3, color4, near_weights);
- farColor = weighted_sum(color1, color2, color3, color4, far_weights);
+ /* now write output to weighted buffers. */
+ nearColor = weighted_sum(color1, color2, color3, color4, near_weights);
+ farColor = weighted_sum(color1, color2, color3, color4, far_weights);
}
#elif defined(STEP_SCATTER)
@@ -107,57 +112,57 @@ layout(location = 1) out float fragAlpha;
/* accumulate color in the near/far blur buffers */
void main(void)
{
- /* Discard to avoid bleeding onto the next layer */
- if (int(gl_FragCoord.x) * edge.x + edge.y > 0) {
- discard;
- }
+ /* Discard to avoid bleeding onto the next layer */
+ if (int(gl_FragCoord.x) * edge.x + edge.y > 0) {
+ discard;
+ }
- /* Circle Dof */
- float dist = length(particlecoord);
+ /* Circle Dof */
+ float dist = length(particlecoord);
- /* Ouside of bokeh shape */
- if (dist > 1.0) {
- discard;
- }
+ /* Ouside of bokeh shape */
+ if (dist > 1.0) {
+ discard;
+ }
- /* Regular Polygon Dof */
- if (bokeh_sides.x > 0.0) {
- /* Circle parametrization */
- float theta = atan(particlecoord.y, particlecoord.x) + bokeh_rotation;
+ /* Regular Polygon Dof */
+ if (bokeh_sides.x > 0.0) {
+ /* Circle parametrization */
+ float theta = atan(particlecoord.y, particlecoord.x) + bokeh_rotation;
- /* Optimized version of :
- * float denom = theta - (M_2PI / bokeh_sides) * floor((bokeh_sides * theta + M_PI) / M_2PI);
- * float r = cos(M_PI / bokeh_sides) / cos(denom); */
- float denom = theta - bokeh_sides.y * floor(bokeh_sides.z * theta + 0.5);
- float r = bokeh_sides.w / cos(denom);
+ /* Optimized version of :
+ * float denom = theta - (M_2PI / bokeh_sides) * floor((bokeh_sides * theta + M_PI) / M_2PI);
+ * float r = cos(M_PI / bokeh_sides) / cos(denom); */
+ float denom = theta - bokeh_sides.y * floor(bokeh_sides.z * theta + 0.5);
+ float r = bokeh_sides.w / cos(denom);
- /* Divide circle radial coord by the shape radius for angle theta.
- * Giving us the new linear radius to the shape edge. */
- dist /= r;
+ /* Divide circle radial coord by the shape radius for angle theta.
+ * Giving us the new linear radius to the shape edge. */
+ dist /= r;
- /* Ouside of bokeh shape */
- if (dist > 1.0) {
- discard;
- }
- }
+ /* Ouside of bokeh shape */
+ if (dist > 1.0) {
+ discard;
+ }
+ }
- fragColor = color;
+ fragColor = color;
- /* Smooth the edges a bit. This effectively reduce the bokeh shape
- * but does fade out the undersampling artifacts. */
- float shape = smoothstep(1.0, min(0.999, smoothFac), dist);
+ /* Smooth the edges a bit. This effectively reduce the bokeh shape
+ * but does fade out the undersampling artifacts. */
+ float shape = smoothstep(1.0, min(0.999, smoothFac), dist);
- fragColor *= shape;
+ fragColor *= shape;
# ifdef USE_ALPHA_DOF
- fragAlpha = fragColor.a;
- fragColor.a = weight * shape;
+ fragAlpha = fragColor.a;
+ fragColor.a = weight * shape;
# endif
}
#elif defined(STEP_RESOLVE)
-#define MERGE_THRESHOLD 4.0
+# define MERGE_THRESHOLD 4.0
uniform sampler2D scatterBuffer;
uniform sampler2D scatterAlphaBuffer;
@@ -167,77 +172,77 @@ out vec4 fragColor;
vec4 upsample_filter(sampler2D tex, vec2 uv, vec2 texelSize)
{
- /* TODO FIXME: Clamp the sample position
- * depending on the layer to avoid bleeding.
- * This is not really noticeable so leaving it as is for now. */
-
-#if 1 /* 9-tap bilinear upsampler (tent filter) */
- vec4 d = texelSize.xyxy * vec4(1, 1, -1, 0);
-
- vec4 s;
- s = textureLod(tex, uv - d.xy, 0.0);
- s += textureLod(tex, uv - d.wy, 0.0) * 2;
- s += textureLod(tex, uv - d.zy, 0.0);
-
- s += textureLod(tex, uv + d.zw, 0.0) * 2;
- s += textureLod(tex, uv , 0.0) * 4;
- s += textureLod(tex, uv + d.xw, 0.0) * 2;
-
- s += textureLod(tex, uv + d.zy, 0.0);
- s += textureLod(tex, uv + d.wy, 0.0) * 2;
- s += textureLod(tex, uv + d.xy, 0.0);
-
- return s * (1.0 / 16.0);
-#else
- /* 4-tap bilinear upsampler */
- vec4 d = texelSize.xyxy * vec4(-1, -1, +1, +1) * 0.5;
-
- vec4 s;
- s = textureLod(tex, uv + d.xy, 0.0);
- s += textureLod(tex, uv + d.zy, 0.0);
- s += textureLod(tex, uv + d.xw, 0.0);
- s += textureLod(tex, uv + d.zw, 0.0);
-
- return s * (1.0 / 4.0);
-#endif
+ /* TODO FIXME: Clamp the sample position
+ * depending on the layer to avoid bleeding.
+ * This is not really noticeable so leaving it as is for now. */
+
+# if 1 /* 9-tap bilinear upsampler (tent filter) */
+ vec4 d = texelSize.xyxy * vec4(1, 1, -1, 0);
+
+ vec4 s;
+ s = textureLod(tex, uv - d.xy, 0.0);
+ s += textureLod(tex, uv - d.wy, 0.0) * 2;
+ s += textureLod(tex, uv - d.zy, 0.0);
+
+ s += textureLod(tex, uv + d.zw, 0.0) * 2;
+ s += textureLod(tex, uv, 0.0) * 4;
+ s += textureLod(tex, uv + d.xw, 0.0) * 2;
+
+ s += textureLod(tex, uv + d.zy, 0.0);
+ s += textureLod(tex, uv + d.wy, 0.0) * 2;
+ s += textureLod(tex, uv + d.xy, 0.0);
+
+ return s * (1.0 / 16.0);
+# else
+ /* 4-tap bilinear upsampler */
+ vec4 d = texelSize.xyxy * vec4(-1, -1, +1, +1) * 0.5;
+
+ vec4 s;
+ s = textureLod(tex, uv + d.xy, 0.0);
+ s += textureLod(tex, uv + d.zy, 0.0);
+ s += textureLod(tex, uv + d.xw, 0.0);
+ s += textureLod(tex, uv + d.zw, 0.0);
+
+ return s * (1.0 / 4.0);
+# endif
}
/* Combine the Far and Near color buffers */
void main(void)
{
- vec2 uv = uvcoordsvar.xy;
- /* Recompute Near / Far CoC per pixel */
- float depth = textureLod(depthBuffer, uv, 0.0).r;
- float zdepth = linear_depth(depth);
- float coc_signed = calculate_coc(zdepth);
- float coc_far = max(-coc_signed, 0.0);
- float coc_near = max(coc_signed, 0.0);
+ vec2 uv = uvcoordsvar.xy;
+ /* Recompute Near / Far CoC per pixel */
+ float depth = textureLod(depthBuffer, uv, 0.0).r;
+ float zdepth = linear_depth(depth);
+ float coc_signed = calculate_coc(zdepth);
+ float coc_far = max(-coc_signed, 0.0);
+ float coc_near = max(coc_signed, 0.0);
- vec4 focus_col = textureLod(colorBuffer, uv, 0.0);
+ vec4 focus_col = textureLod(colorBuffer, uv, 0.0);
- vec2 texelSize = vec2(0.5, 1.0) / vec2(textureSize(scatterBuffer, 0));
- vec2 near_uv = uv * vec2(0.5, 1.0);
- vec2 far_uv = near_uv + vec2(0.5, 0.0);
- vec4 near_col = upsample_filter(scatterBuffer, near_uv, texelSize);
- vec4 far_col = upsample_filter(scatterBuffer, far_uv, texelSize);
+ vec2 texelSize = vec2(0.5, 1.0) / vec2(textureSize(scatterBuffer, 0));
+ vec2 near_uv = uv * vec2(0.5, 1.0);
+ vec2 far_uv = near_uv + vec2(0.5, 0.0);
+ vec4 near_col = upsample_filter(scatterBuffer, near_uv, texelSize);
+ vec4 far_col = upsample_filter(scatterBuffer, far_uv, texelSize);
- float far_w = far_col.a;
- float near_w = near_col.a;
- float focus_w = 1.0 - smoothstep(1.0, MERGE_THRESHOLD, abs(coc_signed));
- float inv_weight_sum = 1.0 / (near_w + focus_w + far_w);
+ float far_w = far_col.a;
+ float near_w = near_col.a;
+ float focus_w = 1.0 - smoothstep(1.0, MERGE_THRESHOLD, abs(coc_signed));
+ float inv_weight_sum = 1.0 / (near_w + focus_w + far_w);
- focus_col *= focus_w; /* Premul */
+ focus_col *= focus_w; /* Premul */
# ifdef USE_ALPHA_DOF
- near_col.a = upsample_filter(scatterAlphaBuffer, near_uv, texelSize).r;
- far_col.a = upsample_filter(scatterAlphaBuffer, far_uv, texelSize).r;
+ near_col.a = upsample_filter(scatterAlphaBuffer, near_uv, texelSize).r;
+ far_col.a = upsample_filter(scatterAlphaBuffer, far_uv, texelSize).r;
# endif
- fragColor = (far_col + near_col + focus_col) * inv_weight_sum;
+ fragColor = (far_col + near_col + focus_col) * inv_weight_sum;
# ifdef USE_ALPHA_DOF
- /* Unpremult */
- fragColor.rgb /= (fragColor.a > 0.0) ? fragColor.a : 1.0;
+ /* Unpremult */
+ fragColor.rgb /= (fragColor.a > 0.0) ? fragColor.a : 1.0;
# endif
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-09 10:42:23 +0300