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Removed normal from bilateral blur... again

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This commit is contained in:
Olivier Prat 2018-09-20 11:27:00 +02:00
parent d5d0f056a9
commit 64b72e3538
2 changed files with 4 additions and 11 deletions
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2
libraries/render-utils/src/AmbientOcclusionEffect.cpp
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@ -508,7 +508,6 @@ void AmbientOcclusionEffect::run(const render::RenderContextPointer& renderConte
auto occlusionNormalFramebuffer = _framebuffer->getNormalFramebuffer(resolutionLevel);
auto occlusionNormalTexture = _framebuffer->getNormalTexture(resolutionLevel);
#endif
auto fullNormalTexture = linearDepthFramebuffer->getNormalTexture();
// Update sample rotation
const int SSAO_RANDOM_SAMPLE_COUNT = int(_randomSamples.size() / SSAO_SPLIT_COUNT);
@ -620,7 +619,6 @@ void AmbientOcclusionEffect::run(const render::RenderContextPointer& renderConte
batch.setFramebuffer(occlusionBlurredFBO);
// Use full resolution depth and normal for bilateral upscaling and blur
batch.setResourceTexture(render_utils::slot::texture::SsaoDepth, linearDepthTexture);
batch.setResourceTexture(render_utils::slot::texture::SsaoNormal, fullNormalTexture);
batch.setUniformBuffer(render_utils::slot::buffer::SsaoBlurParams, _hblurParametersBuffer);
batch.setPipeline(firstHBlurPipeline);
batch.setResourceTexture(render_utils::slot::texture::SsaoOcclusion, occlusionFBO->getRenderBuffer(0));

13
libraries/render-utils/src/ssao.slh
View file

@ -401,9 +401,8 @@ float fetchOcclusion(vec2 coords) {
}
const float BLUR_EDGE_DISTANCE_SCALE = 300.0;
const float BLUR_EDGE_NORMAL_SCALE = 0.5;
vec2 evalTapWeightedValue(ivec3 side, int r, ivec2 destPixelCoord, vec2 scaledTexCoord, vec2 fullTexCoord, float fragDepth, vec3 fragNormal) {
vec2 evalTapWeightedValue(ivec3 side, int r, ivec2 destPixelCoord, vec2 scaledTexCoord, vec2 fullTexCoord, float fragDepth) {
ivec2 tapOffset = <$axis$> * r;
ivec2 tapPixelCoord = destPixelCoord + ivec2(tapOffset);
@ -416,14 +415,11 @@ vec2 evalTapWeightedValue(ivec3 side, int r, ivec2 destPixelCoord, vec2 scaledTe
tapTexCoord = fullTexCoord + tapOffset * getDepthBlurScale();
float tapDepth = getZEyeAtUV(tapTexCoord, 0);
vec3 tapNormal = getNormalEyeAtUV(tapTexCoord, 0);
float weight = getBlurCoef(abs(r));
// range domain (the "bilateral" weight). As depth difference increases, decrease weight.
float zDistance = tapDepth - fragDepth;
tapNormal -= fragNormal;
float normalDistance = dot(tapNormal,tapNormal);
weight *= exp(-getBlurEdgeSharpness() * (zDistance * zDistance * BLUR_EDGE_DISTANCE_SCALE + normalDistance * BLUR_EDGE_NORMAL_SCALE));
weight *= exp(-getBlurEdgeSharpness() * (zDistance * zDistance * BLUR_EDGE_DISTANCE_SCALE));
return vec2(tapOcclusion * weight, weight);
}
@ -433,7 +429,6 @@ vec3 getBlurredOcclusion(ivec2 destPixelCoord, vec2 scaledTexCoord, vec2 fullTex
ivec4 side = getStereoSideInfo(destPixelCoord.x, 0);
float fragDepth = getZEyeAtUV(fullTexCoord, 0);
vec3 fragNormal = getNormalEyeAtUV(fullTexCoord, 0);
vec2 weightedSums = vec2(0.0);
// Accumulate weighted contributions along the bluring axis in the [-radius, radius] range
@ -441,7 +436,7 @@ vec3 getBlurredOcclusion(ivec2 destPixelCoord, vec2 scaledTexCoord, vec2 fullTex
// negative side first
for (int r = -blurRadius; r <= -1; ++r) {
weightedSums += evalTapWeightedValue(side.xyz, r, destPixelCoord, scaledTexCoord, fullTexCoord, fragDepth, fragNormal);
weightedSums += evalTapWeightedValue(side.xyz, r, destPixelCoord, scaledTexCoord, fullTexCoord, fragDepth);
}
// Central pixel contribution
@ -451,7 +446,7 @@ vec3 getBlurredOcclusion(ivec2 destPixelCoord, vec2 scaledTexCoord, vec2 fullTex
// then positive side
for (int r = 1; r <= blurRadius; ++r) {
weightedSums += evalTapWeightedValue(side.xyz, r, destPixelCoord, scaledTexCoord, fullTexCoord, fragDepth, fragNormal);
weightedSums += evalTapWeightedValue(side.xyz, r, destPixelCoord, scaledTexCoord, fullTexCoord, fragDepth);
}
// Final normalization