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Merge pull request #49549 from clayjohn/VULKAN-roughness-limiter

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Fix roughness limiter derivative
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Juan Linietsky 2021-06-12 21:29:34 -03:00 committed by GitHub
commit bb94344937
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 2 additions and 2 deletions
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2
servers/rendering/renderer_rd/shaders/scene_forward_clustered.glsl
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@ -850,7 +850,7 @@ void main() {
if (scene_data.roughness_limiter_enabled) {
//http://www.jp.square-enix.com/tech/library/pdf/ImprovedGeometricSpecularAA.pdf
float roughness2 = roughness * roughness;
vec3 dndu = dFdx(normal), dndv = dFdx(normal);
vec2 dndu = dFdx(normal), dndv = dFdy(normal);
float variance = scene_data.roughness_limiter_amount * (dot(dndu, dndu) + dot(dndv, dndv));
float kernelRoughness2 = min(2.0 * variance, scene_data.roughness_limiter_limit); //limit effect
float filteredRoughness2 = min(1.0, roughness2 + kernelRoughness2);

2
servers/rendering/renderer_rd/shaders/scene_forward_mobile.glsl
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@ -761,7 +761,7 @@ void main() {
if (scene_data.roughness_limiter_enabled) {
//http://www.jp.square-enix.com/tech/library/pdf/ImprovedGeometricSpecularAA.pdf
float roughness2 = roughness * roughness;
vec3 dndu = dFdx(normal), dndv = dFdx(normal);
vec3 dndu = dFdx(normal), dndv = dFdy(normal);
float variance = scene_data.roughness_limiter_amount * (dot(dndu, dndu) + dot(dndv, dndv));
float kernelRoughness2 = min(2.0 * variance, scene_data.roughness_limiter_limit); //limit effect
float filteredRoughness2 = min(1.0, roughness2 + kernelRoughness2);