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Added UtsSingleLightLoop

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Misaki
2025-03-23 17:53:36 +09:00
parent ee0b720b6d
commit ea3e83157c
18 changed files with 142 additions and 234 deletions
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53
Runtime/Shaders/Includes/Lighting/UtsLightLoop.hlsl
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@@ -38,32 +38,6 @@ int GetNextDirectionalLightIndex(BuiltinData builtinData, int currentIndex, int
return -1; // not found
}
int GetUtsMainLightIndex(BuiltinData builtinData)
{
int mainLightIndex = -1;
float3 lightColor = float3(0.0f, 0.0f, 0.0f);
float lightAttenuation = 0.0f;
uint i = 0; // Declare once to avoid the D3D11 compiler warning.
for (i = 0; i < _DirectionalLightCount; ++i)
{
if (IsMatchingLightLayer(_DirectionalLightDatas[i].lightLayers, builtinData.renderingLayers))
{
float3 currentLightColor = _DirectionalLightDatas[i].color;
float currentLightAttenuation = GetColorAttenuation(currentLightColor);
if (mainLightIndex == -1 || (currentLightAttenuation > lightAttenuation))
{
mainLightIndex = i;
lightAttenuation = currentLightAttenuation;
lightColor = currentLightColor;
}
}
}
return mainLightIndex;
}
bool UtsUseScreenSpaceShadow(DirectionalLightData light, float3 normalWS)
{
#if defined(RAY_TRACED_SCREEN_SPACE_SHADOW_FLAG)
@@ -464,29 +438,4 @@ void UtsLightLoop(FragInputs fragInputs, PositionInputs posInput, UtsBSDFData bs
// return mainPunctualLight;
// }
// Todo: calculate the acutal main lighboth dorectional and punctual)t based on the light attenuation, rather than using the main directional light
UTSLightData GetCustomMainLightData(BuiltinData builtinData, UTSLightData mainPunctualLight)
{
UTSLightData utsLightData;
int mainLightIndex;
mainLightIndex = GetUtsMainLightIndex(builtinData);
if (mainLightIndex == -1 || length(_DirectionalLightDatas[mainLightIndex].color) < length(mainPunctualLight.lightColor))
{
utsLightData = mainPunctualLight;
}
else
{
utsLightData.lightColor = ApplyCurrentExposureMultiplier(_DirectionalLightDatas[mainLightIndex].color);
utsLightData.lightDirection = -_DirectionalLightDatas[mainLightIndex].forward;
utsLightData.diffuseDimmer = _DirectionalLightDatas[mainLightIndex].diffuseDimmer;
utsLightData.specularDimmer = _DirectionalLightDatas[mainLightIndex].specularDimmer;
utsLightData.shadowTint = _DirectionalLightDatas[mainLightIndex].shadowTint;
utsLightData.penumbraTint = _DirectionalLightDatas[mainLightIndex].penumbraTint;
}
return utsLightData;
}
#endif
#endif