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69 行
2.3 KiB
69 行
2.3 KiB
#ifndef LIGHTWEIGHT_INPUT_INCLUDED
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#define LIGHTWEIGHT_INPUT_INCLUDED
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#define MAX_VISIBLE_LIGHTS 16
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struct LightInput
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{
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float4 pos;
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half4 color;
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half4 distanceAttenuation;
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half4 spotDirection;
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half4 spotAttenuation;
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};
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// Main light initialized without indexing
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#define INITIALIZE_MAIN_LIGHT(light) \
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light.pos = _MainLightPosition; \
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light.color = _MainLightColor; \
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light.distanceAttenuation = _MainLightDistanceAttenuation; \
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light.spotDirection = _MainLightSpotDir; \
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light.spotAttenuation = _MainLightSpotAttenuation
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// Indexing might have a performance hit for old mobile hardware
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#define INITIALIZE_LIGHT(light, i) \
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half4 indices = (i < 4) ? unity_4LightIndices0 : unity_4LightIndices1; \
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int index = (i < 4) ? i : i - 4; \
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int lightIndex = indices[index]; \
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light.pos = _AdditionalLightPosition[lightIndex]; \
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light.color = _AdditionalLightColor[lightIndex]; \
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light.distanceAttenuation = _AdditionalLightDistanceAttenuation[lightIndex]; \
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light.spotDirection = _AdditionalLightSpotDir[lightIndex]; \
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light.spotAttenuation = _AdditionalLightSpotAttenuation[lightIndex]
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///////////////////////////////////////////////////////////////////////////////
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// Constant Buffers //
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///////////////////////////////////////////////////////////////////////////////
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CBUFFER_START(_PerFrame)
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half4 _GlossyEnvironmentColor;
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half4 _SubtractiveShadowColor;
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CBUFFER_END
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CBUFFER_START(_PerCamera)
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float4 _MainLightPosition;
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half4 _MainLightColor;
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half4 _MainLightDistanceAttenuation;
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half4 _MainLightSpotDir;
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half4 _MainLightSpotAttenuation;
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float4x4 _WorldToLight;
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half4 _AdditionalLightCount;
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float4 _AdditionalLightPosition[MAX_VISIBLE_LIGHTS];
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half4 _AdditionalLightColor[MAX_VISIBLE_LIGHTS];
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half4 _AdditionalLightDistanceAttenuation[MAX_VISIBLE_LIGHTS];
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half4 _AdditionalLightSpotDir[MAX_VISIBLE_LIGHTS];
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half4 _AdditionalLightSpotAttenuation[MAX_VISIBLE_LIGHTS];
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CBUFFER_END
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sampler2D _MainLightCookie;
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// These are set internally by the engine upon request by RendererConfiguration.
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// Check GetRendererSettings in LightweightPipeline.cs
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CBUFFER_START(_PerObject)
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half4 unity_LightIndicesOffsetAndCount;
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half4 unity_4LightIndices0;
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half4 unity_4LightIndices1;
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CBUFFER_END
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#endif
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