您最多选择25个主题
主题必须以中文或者字母或数字开头，可以包含连字符 (-)，并且长度不得超过35个字符
22 行
701 B
22 行
701 B
#ifndef UNITY_EYE_ADAPTATION
|
|
#define UNITY_EYE_ADAPTATION
|
|
|
|
// Optimal values for PS4/GCN
|
|
// Using a group size of 32x32 seems to be a bit faster on Kepler/Maxwell
|
|
// Don't forget to update 'EyeAdaptationController.cs' if you change these values !
|
|
#define HISTOGRAM_BINS 64
|
|
#define HISTOGRAM_TEXELS HISTOGRAM_BINS / 4
|
|
#define HISTOGRAM_THREAD_X 16
|
|
#define HISTOGRAM_THREAD_Y 16
|
|
|
|
float GetHistogramBinFromLuminance(float value, float2 scaleOffset)
|
|
{
|
|
return saturate(log2(value) * scaleOffset.x + scaleOffset.y);
|
|
}
|
|
|
|
float GetLuminanceFromHistogramBin(float bin, float2 scaleOffset)
|
|
{
|
|
return exp2((bin - scaleOffset.y) / scaleOffset.x);
|
|
}
|
|
|
|
#endif // UNITY_EYE_ADAPTATION
|