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Fixed wrong sample count

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Olivier Prat 2019-04-01 14:22:26 +02:00
parent 706dc0e303
commit f895e96500
1 changed files with 2 additions and 2 deletions
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4
libraries/image/src/image/CubeMap.cpp
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@ -588,7 +588,7 @@ void CubeMap::convolveForGGX(CubeMap& output, const std::atomic<bool>& abortProc
params.points.reserve(MAX_SAMPLE_COUNT);
for (gpu::uint16 mipLevel = 0; mipLevel < mipCount; ++mipLevel) {
// This is the inverse code found in fragment.glsl in evaluateAmbientLighting
// This is the inverse code found in LightAmbient.slh in getMipLevelFromRoughness
float levelAlpha = float(mipLevel) / (mipCount - ROUGHNESS_1_MIP_RESOLUTION);
float mipRoughness = levelAlpha * (1.0f + 2.0f * levelAlpha) / 3.0f;
@ -599,7 +599,7 @@ void CubeMap::convolveForGGX(CubeMap& output, const std::atomic<bool>& abortProc
size_t sampleCount = 1U + size_t(4000 * mipRoughness * mipRoughness);
sampleCount = std::min(sampleCount, 2 * mipTotalPixelCount);
sampleCount = std::min(MAX_SAMPLE_COUNT, 4 * mipTotalPixelCount);
sampleCount = std::min(MAX_SAMPLE_COUNT, sampleCount);
params.points.resize(sampleCount);
generateGGXSamples(params, mipRoughness, _width);