64 lines
1.4 KiB
HLSL
64 lines
1.4 KiB
HLSL
// Subset of PostProcessing's stdlib.hlsl
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#ifndef UNITY_CMWAVEFORM_STDLIB
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#define UNITY_CMWAVEFORM_STDLIB
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const float _RenderViewportScaleFactor = 1;
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#define FLT_EPSILON 1.192092896e-07 // Smallest positive number, such that 1.0 + FLT_EPSILON != 1.0
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float3 PositivePow(float3 base, float3 power)
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{
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return pow(max(abs(base), float3(FLT_EPSILON, FLT_EPSILON, FLT_EPSILON)), power);
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}
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#if defined(UNITY_SINGLE_PASS_STEREO)
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float2 TransformStereoScreenSpaceTex(float2 uv, float w)
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{
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float4 scaleOffset = unity_StereoScaleOffset[unity_StereoEyeIndex];
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scaleOffset.xy *= _RenderViewportScaleFactor;
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return uv.xy * scaleOffset.xy + scaleOffset.zw * w;
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}
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#else
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float2 TransformStereoScreenSpaceTex(float2 uv, float w)
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{
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return uv * _RenderViewportScaleFactor;
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}
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#endif
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// Vertex manipulation
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float2 TransformTriangleVertexToUV(float2 vertex)
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{
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float2 uv = (vertex + 1.0) * 0.5;
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return uv;
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}
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struct AttributesDefault
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{
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float3 vertex : POSITION;
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};
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struct VaryingsDefault
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{
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float4 vertex : SV_POSITION;
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float2 texcoord : TEXCOORD0;
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float2 texcoordStereo : TEXCOORD1;
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};
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VaryingsDefault VertDefault(AttributesDefault v)
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{
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VaryingsDefault o;
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o.vertex = float4(v.vertex.xy, 0.0, 1.0);
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o.texcoord = TransformTriangleVertexToUV(v.vertex.xy);
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#if UNITY_UV_STARTS_AT_TOP
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o.texcoord = o.texcoord * float2(1.0, -1.0) + float2(0.0, 1.0);
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#endif
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o.texcoordStereo = TransformStereoScreenSpaceTex(o.texcoord, 1.0);
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return o;
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}
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#endif // UNITY_CMWAVEFORM_STDLIB
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