SwRasterizer/Lighting: dist atten lut input need to be clamp

master
wwylele 2017-07-11 22:19:00 +07:00
parent 56e5425e59
commit 4feff63ffa
1 changed files with 1 additions and 1 deletions

@ -171,7 +171,7 @@ std::tuple<Math::Vec4<u8>, Math::Vec4<u8>> ComputeFragmentsColors(
size_t lut =
static_cast<size_t>(LightingRegs::LightingSampler::DistanceAttenuation) + num;
float sample_loc = scale * distance + bias;
float sample_loc = MathUtil::Clamp(scale * distance + bias, 0.0f, 1.0f);
u8 lutindex =
static_cast<u8>(MathUtil::Clamp(std::floor(sample_loc * 256.0f), 0.0f, 255.0f));