385 lines
11 KiB
Plaintext
385 lines
11 KiB
Plaintext
Shader "Hidden/Universal Render Pipeline/HBAO"
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{
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Properties
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{
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_MainTex("", any) = "" {}
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_HBAOTex("", any) = "" {}
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_TempTex("", any) = "" {}
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_NoiseTex("", 2D) = "" {}
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_DepthTex("", any) = "" {}
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_NormalsTex("", any) = "" {}
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}
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HLSLINCLUDE
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#pragma target 3.0
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#pragma prefer_hlslcc gles
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#pragma exclude_renderers d3d11_9x
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#pragma editor_sync_compilation
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//#pragma enable_d3d11_debug_symbols
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#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
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#if UNITY_VERSION >= 202330
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#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/GlobalSamplers.hlsl"
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#endif
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TEXTURE2D_X(_MainTex);
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TEXTURE2D_X(_HBAOTex);
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TEXTURE2D_X(_TempTex);
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TEXTURE2D_X(_DepthTex);
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TEXTURE2D_X(_NormalsTex);
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//TEXTURE2D_X(_CameraNormalsTexture);
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TEXTURE2D_X(_MotionVectorTexture);
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TEXTURE2D(_NoiseTex);
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#if !(UNITY_VERSION >= 202330)
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SAMPLER(sampler_LinearClamp);
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SAMPLER(sampler_PointRepeat);
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SAMPLER(sampler_PointClamp);
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#endif
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float4 _HistoryBuffer_RTHandleScale;
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CBUFFER_START(FrequentlyUpdatedUniforms)
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float4 _Input_TexelSize;
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float4 _AO_TexelSize;
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float4 _DeinterleavedAO_TexelSize;
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float4 _ReinterleavedAO_TexelSize;
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float4 _TargetScale;
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float4 _UVToView[2];
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//float4x4 _WorldToCameraMatrix;
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float _Radius[2];
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float _MaxRadiusPixels;
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float _NegInvRadius2;
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float _AngleBias;
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float _AOmultiplier;
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float _Intensity;
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half4 _BaseColor;
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float _MultiBounceInfluence;
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float _OffscreenSamplesContrib;
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float _MaxDistance;
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float _DistanceFalloff;
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float _BlurSharpness;
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float _ColorBleedSaturation;
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float _ColorBleedBrightnessMask;
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float2 _ColorBleedBrightnessMaskRange;
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float2 _TemporalParams;
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CBUFFER_END
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CBUFFER_START(PerPassUpdatedUniforms)
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float2 _BlurDeltaUV;
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CBUFFER_END
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CBUFFER_START(PerPassUpdatedDeinterleavingUniforms)
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float2 _Deinterleave_Offset00;
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float2 _Deinterleave_Offset10;
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float2 _Deinterleave_Offset01;
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float2 _Deinterleave_Offset11;
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float2 _AtlasOffset;
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float2 _Jitter;
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CBUFFER_END
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struct Attributes
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{
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float4 positionOS : POSITION;
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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struct Varyings
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{
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float4 positionCS : SV_POSITION;
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float2 uv : TEXCOORD0;
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UNITY_VERTEX_OUTPUT_STEREO
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};
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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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Varyings Vert(Attributes input)
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{
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Varyings output;
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UNITY_SETUP_INSTANCE_ID(input);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);
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//output.positionCS = TransformObjectToHClip(input.positionOS.xyz);
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// Note: The pass is setup with a mesh already in CS
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// Therefore, we can just output vertex position
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output.positionCS = float4(input.positionOS.xy, 0.0, 1.0);
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output.uv = TransformTriangleVertexToUV(input.positionOS.xy);
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#if UNITY_UV_STARTS_AT_TOP
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output.uv = output.uv * float2(1.0, -1.0) + float2(0.0, 1.0);
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#endif
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return output;
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}
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Varyings Vert_Atlas(Attributes input)
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{
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Varyings output;
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UNITY_SETUP_INSTANCE_ID(input);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);
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//float3 pos = input.positionOS.xyz;
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//pos.xy = pos.xy * (_DeinterleavedAO_TexelSize.zw / _ReinterleavedAO_TexelSize.zw) + _AtlasOffset * _ReinterleavedAO_TexelSize.xy;
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//output.positionCS = TransformObjectToHClip(pos);
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output.positionCS = float4((input.positionOS.xy + float2(-3.0, 1.0)) * (_DeinterleavedAO_TexelSize.zw / _ReinterleavedAO_TexelSize.zw) + 2.0 * _AtlasOffset * _ReinterleavedAO_TexelSize.xy, 0.0, 1.0);
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output.uv = TransformTriangleVertexToUV(input.positionOS.xy);
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// flip triangle upside down
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output.positionCS.y = 1 - output.positionCS.y;
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return output;
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}
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ENDHLSL
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SubShader
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{
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Tags { "RenderType" = "Opaque" "RenderPipeline" = "UniversalPipeline" }
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LOD 100
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ZWrite Off ZTest Always Blend Off Cull Off
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Pass // 0
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{
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Name "HBAO - AO"
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HLSLPROGRAM
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#pragma multi_compile_local_fragment __ ORTHOGRAPHIC_PROJECTION
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#pragma multi_compile_local_fragment __ COLOR_BLEEDING
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#pragma multi_compile_local_fragment __ OFFSCREEN_SAMPLES_CONTRIBUTION
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#pragma multi_compile_local_fragment __ NORMALS_RECONSTRUCT2 NORMALS_RECONSTRUCT4
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#pragma multi_compile_local_fragment __ INTERLEAVED_GRADIENT_NOISE
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#pragma multi_compile_local_fragment QUALITY_LOWEST QUALITY_LOW QUALITY_MEDIUM QUALITY_HIGH QUALITY_HIGHEST
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#pragma multi_compile_fragment __ _GBUFFER_NORMALS_OCT // support octahedron endoded normals
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#if QUALITY_LOWEST
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#define DIRECTIONS 3
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#define STEPS 2
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#elif QUALITY_LOW
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#define DIRECTIONS 4
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#define STEPS 3
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#elif QUALITY_MEDIUM
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#define DIRECTIONS 6
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#define STEPS 4
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#elif QUALITY_HIGH
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#define DIRECTIONS 8
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#define STEPS 4
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#elif QUALITY_HIGHEST
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#define DIRECTIONS 8
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#define STEPS 6
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#else
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#define DIRECTIONS 1
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#define STEPS 1
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#endif
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#pragma vertex Vert
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#pragma fragment AO_Frag
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#include "HBAO_AO.hlsl"
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ENDHLSL
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}
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Pass // 1
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{
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Name "HBAO - AO Deinterleaved"
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HLSLPROGRAM
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#pragma multi_compile_local_fragment __ ORTHOGRAPHIC_PROJECTION
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#pragma multi_compile_local_fragment __ COLOR_BLEEDING
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#pragma multi_compile_local_fragment __ OFFSCREEN_SAMPLES_CONTRIBUTION
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#pragma multi_compile_local_fragment QUALITY_LOWEST QUALITY_LOW QUALITY_MEDIUM QUALITY_HIGH QUALITY_HIGHEST
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#if QUALITY_LOWEST
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#define DIRECTIONS 3
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#define STEPS 2
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#elif QUALITY_LOW
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#define DIRECTIONS 4
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#define STEPS 3
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#elif QUALITY_MEDIUM
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#define DIRECTIONS 6
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#define STEPS 4
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#elif QUALITY_HIGH
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#define DIRECTIONS 8
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#define STEPS 4
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#elif QUALITY_HIGHEST
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#define DIRECTIONS 8
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#define STEPS 6
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#else
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#define DIRECTIONS 1
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#define STEPS 1
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#endif
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#define DEINTERLEAVED
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#pragma vertex Vert
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#pragma fragment AO_Frag
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#include "HBAO_AO.hlsl"
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ENDHLSL
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}
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// 2
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Pass {
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Name "HBAO - Deinterleave Depth"
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HLSLPROGRAM
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#pragma vertex Vert
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#pragma fragment DeinterleaveDepth_Frag
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#include "HBAO_Deinterleaving.hlsl"
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ENDHLSL
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}
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// 3
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Pass {
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Name "HBAO - Deinterleave Normals"
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HLSLPROGRAM
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#pragma multi_compile_local_fragment __ ORTHOGRAPHIC_PROJECTION
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#pragma multi_compile_local_fragment __ NORMALS_RECONSTRUCT2 NORMALS_RECONSTRUCT4
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#pragma multi_compile_fragment __ _GBUFFER_NORMALS_OCT // support octahedron endoded normals
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#pragma vertex Vert
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#pragma fragment DeinterleaveNormals_Frag
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#include "HBAO_Deinterleaving.hlsl"
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ENDHLSL
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}
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// 4
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Pass {
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Name "HBAO - Atlas Deinterleaved AO"
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HLSLPROGRAM
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#pragma vertex Vert_Atlas
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#pragma fragment Frag
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half4 Frag(Varyings input) : SV_Target
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
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float2 uv = UnityStereoTransformScreenSpaceTex(input.uv);
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return SAMPLE_TEXTURE2D_X(_MainTex, sampler_PointClamp, uv);
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}
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ENDHLSL
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}
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// 5
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Pass {
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Name "HBAO - Reinterleave AO"
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HLSLPROGRAM
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#pragma vertex Vert
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#pragma fragment ReinterleaveAO_Frag
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#include "HBAO_Deinterleaving.hlsl"
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ENDHLSL
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}
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Pass // 6
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{
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Name "HBAO - Blur"
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HLSLPROGRAM
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#pragma multi_compile_local_fragment __ ORTHOGRAPHIC_PROJECTION
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#pragma multi_compile_local_fragment __ COLOR_BLEEDING
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#pragma multi_compile_local_fragment BLUR_RADIUS_2 BLUR_RADIUS_3 BLUR_RADIUS_4 BLUR_RADIUS_5
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#if BLUR_RADIUS_2
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#define KERNEL_RADIUS 2
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#elif BLUR_RADIUS_3
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#define KERNEL_RADIUS 3
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#elif BLUR_RADIUS_4
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#define KERNEL_RADIUS 4
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#elif BLUR_RADIUS_5
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#define KERNEL_RADIUS 5
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#else
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#define KERNEL_RADIUS 0
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#endif
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#pragma vertex Vert
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#pragma fragment Blur_Frag
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#include "HBAO_Blur.hlsl"
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ENDHLSL
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}
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Pass // 7
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{
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Name "HBAO - Temporal Filter"
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HLSLPROGRAM
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#pragma multi_compile_local_fragment __ COLOR_BLEEDING
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#pragma multi_compile_local_fragment __ VARIANCE_CLIPPING_4TAP VARIANCE_CLIPPING_8TAP
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#pragma vertex Vert
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#pragma fragment TemporalFilter_Frag
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#include "HBAO_TemporalFilter.hlsl"
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ENDHLSL
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}
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Pass // 8
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{
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Name "HBAO - Copy"
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HLSLPROGRAM
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#pragma vertex Vert
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#pragma fragment Frag
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half4 Frag(Varyings input) : SV_Target
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
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float2 uv = UnityStereoTransformScreenSpaceTex(input.uv);
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return SAMPLE_TEXTURE2D_X(_MainTex, sampler_LinearClamp, uv);
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}
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ENDHLSL
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}
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Pass // 9
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{
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Name "HBAO - Composite"
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ColorMask RGB
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HLSLPROGRAM
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#pragma multi_compile_local_fragment __ LIT_AO
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#pragma multi_compile_local_fragment __ COLOR_BLEEDING
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#pragma multi_compile_local_fragment __ MULTIBOUNCE
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#pragma multi_compile_local_fragment __ DEBUG_AO DEBUG_COLORBLEEDING DEBUG_NOAO_AO DEBUG_AO_AOONLY DEBUG_NOAO_AOONLY
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#pragma vertex Vert
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#pragma fragment Composite_Frag
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#include "HBAO_Composite.hlsl"
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ENDHLSL
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}
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Pass // 10
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{
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Name "HBAO - Debug ViewNormals"
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ColorMask RGB
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HLSLPROGRAM
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#pragma multi_compile_local_fragment __ ORTHOGRAPHIC_PROJECTION
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#pragma multi_compile_local_fragment __ NORMALS_RECONSTRUCT2 NORMALS_RECONSTRUCT4
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#pragma multi_compile_fragment __ _GBUFFER_NORMALS_OCT // support octahedron endoded normals
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#pragma vertex Vert
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#pragma fragment AO_Frag
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#define DIRECTIONS 1
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#define STEPS 1
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#define DEBUG_VIEWNORMALS
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#include "HBAO_AO.hlsl"
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ENDHLSL
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}
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}
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Fallback Off
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}
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