34 lines
1.1 KiB
HLSL
34 lines
1.1 KiB
HLSL
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#ifndef UNITY_DECLARE_NORMALS_TEXTURE_INCLUDED
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#define UNITY_DECLARE_NORMALS_TEXTURE_INCLUDED
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
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TEXTURE2D_X_FLOAT(_CameraNormalsTexture);
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SAMPLER(sampler_CameraNormalsTexture);
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float3 SampleSceneNormals(float2 uv)
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{
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float3 normal = SAMPLE_TEXTURE2D_X(_CameraNormalsTexture, sampler_CameraNormalsTexture, UnityStereoTransformScreenSpaceTex(uv)).xyz;
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#if defined(_GBUFFER_NORMALS_OCT)
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float2 remappedOctNormalWS = Unpack888ToFloat2(normal); // values between [ 0, 1]
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float2 octNormalWS = remappedOctNormalWS.xy * 2.0 - 1.0; // values between [-1, +1]
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normal = UnpackNormalOctQuadEncode(octNormalWS);
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#endif
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return normal;
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}
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float3 LoadSceneNormals(uint2 uv)
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{
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float3 normal = LOAD_TEXTURE2D_X(_CameraNormalsTexture, uv).xyz;
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#if defined(_GBUFFER_NORMALS_OCT)
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float2 remappedOctNormalWS = Unpack888ToFloat2(normal); // values between [ 0, 1]
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float2 octNormalWS = remappedOctNormalWS.xy * 2.0 - 1.0; // values between [-1, +1]
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normal = UnpackNormalOctQuadEncode(octNormalWS);
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#endif
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return normal;
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}
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#endif
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