Firstborn/Assets/Daz3D/Shaders/Helpers/GetLightDirection.hlsl
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2023-03-28 12:16:30 -05:00

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HLSL

#ifndef GETLIGHT_INCLUDED
#define GETLIGHT_INCLUDED
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
#include "Packages/com.unity.render-pipelines.high-definition/Runtime/Lighting/LightDefinition.cs.hlsl"
void GetLightDirection_float(out float3 lightDir, out float3 lightColor)
{
#if SHADERGRAPH_PREVIEW
lightDir = float3(0.707, 0.707, 0);
lightColor = 1;
#else
if (_DirectionalLightCount > 0)
{
DirectionalLightData light = _DirectionalLightDatas[0];
lightDir = light.forward.xyz;
lightColor = light.color;
}
else
{
lightDir = float3(1, 0, 0);
lightColor = 0;
}
#endif
}
#endif