122 lines
3.2 KiB
HLSL
122 lines
3.2 KiB
HLSL
#ifndef UNITY_POSTFX_SMAA_BRIDGE
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#define UNITY_POSTFX_SMAA_BRIDGE
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#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
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#include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariables.hlsl"
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#define SMAA_HLSL_4_1
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TEXTURE2D_X(_InputTexture);
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TEXTURE2D_X(_BlendTex);
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TEXTURE2D(_AreaTex);
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TEXTURE2D(_SearchTex);
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float4 _SMAARTMetrics;
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#define SMAA_RT_METRICS _SMAARTMetrics
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#define SMAA_AREATEX_SELECT(s) s.rg
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#define SMAA_SEARCHTEX_SELECT(s) s.a
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#define LinearSampler s_linear_clamp_sampler
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#define PointSampler s_point_clamp_sampler
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#define GAMMA_FOR_EDGE_DETECTION (1/2.2)
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#include "SubpixelMorphologicalAntialiasing.hlsl"
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struct Attributes
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{
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uint vertexID : SV_VertexID;
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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// ----------------------------------------------------------------------------------------
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// Edge Detection
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struct VaryingsEdge
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{
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float4 vertex : SV_POSITION;
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float2 texcoord : TEXCOORD0;
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float4 offsets[3] : TEXCOORD1;
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UNITY_VERTEX_OUTPUT_STEREO
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};
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VaryingsEdge VertEdge(Attributes v)
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{
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VaryingsEdge o;
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UNITY_SETUP_INSTANCE_ID(v);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
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o.vertex = GetFullScreenTriangleVertexPosition(v.vertexID);
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o.texcoord = GetFullScreenTriangleTexCoord(v.vertexID);
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SMAAEdgeDetectionVS(o.texcoord, o.offsets);
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return o;
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}
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float4 FragEdge(VaryingsEdge i) : SV_Target
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
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return float4(SMAAColorEdgeDetectionPS(i.texcoord, i.offsets, _InputTexture), 0.0, 0.0);
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}
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// ----------------------------------------------------------------------------------------
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// Blend Weights Calculation
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struct VaryingsBlend
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{
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float4 vertex : SV_POSITION;
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float2 texcoord : TEXCOORD0;
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float2 pixcoord : TEXCOORD1;
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float4 offsets[3] : TEXCOORD2;
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UNITY_VERTEX_OUTPUT_STEREO
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};
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VaryingsBlend VertBlend(Attributes v)
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{
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VaryingsBlend o;
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UNITY_SETUP_INSTANCE_ID(v);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
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o.vertex = GetFullScreenTriangleVertexPosition(v.vertexID);
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o.texcoord = GetFullScreenTriangleTexCoord(v.vertexID);
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SMAABlendingWeightCalculationVS(o.texcoord, o.pixcoord, o.offsets);
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return o;
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}
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float4 FragBlend(VaryingsBlend i) : SV_Target
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
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return SMAABlendingWeightCalculationPS(i.texcoord, i.pixcoord, i.offsets, _InputTexture, _AreaTex, _SearchTex, 0);
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}
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// ----------------------------------------------------------------------------------------
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// Neighborhood Blending
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struct VaryingsNeighbor
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{
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float4 vertex : SV_POSITION;
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float2 texcoord : TEXCOORD0;
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float4 offset : TEXCOORD1;
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UNITY_VERTEX_OUTPUT_STEREO
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};
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VaryingsNeighbor VertNeighbor(Attributes v)
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{
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VaryingsNeighbor o;
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UNITY_SETUP_INSTANCE_ID(v);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
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o.vertex = GetFullScreenTriangleVertexPosition(v.vertexID);
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o.texcoord = GetFullScreenTriangleTexCoord(v.vertexID);
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SMAANeighborhoodBlendingVS(o.texcoord, o.offset);
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return o;
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}
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float4 FragNeighbor(VaryingsNeighbor i) : SV_Target
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
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return SMAANeighborhoodBlendingPS(i.texcoord, i.offset, _InputTexture, _BlendTex);
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}
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#endif
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