diff options
Diffstat (limited to 'Graphics/GraphicsTools')
| -rw-r--r-- | Graphics/GraphicsTools/src/GraphicsUtilities.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Graphics/GraphicsTools/src/GraphicsUtilities.cpp b/Graphics/GraphicsTools/src/GraphicsUtilities.cpp index 93e188fd..664749b2 100644 --- a/Graphics/GraphicsTools/src/GraphicsUtilities.cpp +++ b/Graphics/GraphicsTools/src/GraphicsUtilities.cpp @@ -149,7 +149,8 @@ ChannelType SRGBAverage(ChannelType c0, ChannelType c1, ChannelType c2, ChannelT float fLinearAverage = (FastSRGBToLinear(fc0) + FastSRGBToLinear(fc1) + FastSRGBToLinear(fc2) + FastSRGBToLinear(fc3)) * 0.25f; float fSRGBAverage = FastLinearToSRGB(fLinearAverage) * MaxVal; - // Clamping by MaxVal is essential because fast SRGB math is imprecise + // Clamping on both ends is essential because fast SRGB math is imprecise + fSRGBAverage = std::max(fSRGBAverage, 0.f); fSRGBAverage = std::min(fSRGBAverage, MaxVal); return static_cast<ChannelType>(fSRGBAverage); |