sebastienlagarde
8 年前
当前提交
0d5518ce
共有 3 个文件被更改，包括 430 次插入 和 224 次删除
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256Assets/ScriptableRenderLoop/HDRenderPipeline/Material/Lit/ShaderPass/LitDepthPass.hlsl
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353Assets/ScriptableRenderLoop/HDRenderPipeline/Material/Lit/LitAttributesVarying.hlsl
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45Assets/ScriptableRenderLoop/HDRenderPipeline/Material/Lit/LitVertexShare.hlsl
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struct Attributes |
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{ |
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float3 positionOS : POSITION; |
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#ifdef ATTRIBUTES_WANT_NORMAL |
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float3 normalOS : NORMAL; |
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#endif |
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#ifdef ATTRIBUTES_WANT_TANGENT_TO_WORLD |
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float4 tangentOS : TANGENT; // Store sign in w |
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#endif |
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#ifdef ATTRIBUTES_WANT_UV0 |
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float2 uv0 : TEXCOORD0; |
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#endif |
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#ifdef ATTRIBUTES_WANT_UV1 |
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float2 uv1 : TEXCOORD1; |
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#endif |
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#ifdef ATTRIBUTES_WANT_UV2 |
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float2 uv2 : TEXCOORD2; |
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#endif |
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#ifdef ATTRIBUTES_WANT_UV3 |
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float2 uv3 : TEXCOORD3; |
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#endif |
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#ifdef ATTRIBUTES_WANT_COLOR |
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float4 color : COLOR; |
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#endif |
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// UNITY_INSTANCE_ID |
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}; |
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struct Varyings |
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{ |
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float4 positionCS; |
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#ifdef VARYING_WANT_POSITION_WS |
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float3 positionWS; |
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#endif |
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#ifdef VARYING_WANT_TANGENT_TO_WORLD |
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float3 tangentToWorld[3]; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD0 |
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float2 texCoord0; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD1 |
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float2 texCoord1; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD2 |
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float2 texCoord2; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD3 |
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float2 texCoord3; |
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#endif |
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#ifdef VARYING_WANT_COLOR |
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float4 color; |
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#endif |
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}; |
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struct PackedVaryings |
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{ |
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float4 positionCS : SV_Position; |
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#ifdef VARYING_WANT_TANGENT_TO_WORLD |
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#ifdef VARYING_WANT_POSITION_WS |
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// if present, pack positionWS |
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float4 interpolators1 : TEXCOORD1; |
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float4 interpolators2 : TEXCOORD2; |
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float4 interpolators3 : TEXCOORD3; |
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#else |
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float3 interpolators1 : TEXCOORD1; |
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float3 interpolators2 : TEXCOORD2; |
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float3 interpolators3 : TEXCOORD3; |
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#endif |
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#else |
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#ifdef VARYING_WANT_POSITION_WS |
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float3 interpolators0 : TEXCOORD0; |
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#endif |
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#endif |
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// Allocate only necessary space if shader compiler in the future are able to automatically pack |
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#ifdef VARYING_WANT_TEXCOORD1 |
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float4 interpolators4 : TEXCOORD3; |
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#elif defined(VARYING_WANT_TEXCOORD0) |
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float2 interpolators4 : TEXCOORD3; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD3 |
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float4 interpolators5 : TEXCOORD4; |
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#elif defined(VARYING_WANT_TEXCOORD2) |
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float2 interpolators5 : TEXCOORD4; |
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#endif |
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#ifdef VARYING_WANT_COLOR |
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float4 interpolators6 : TEXCOORD6; |
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#endif |
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}; |
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// Functions to pack data to use as few interpolator as possible, the ShaderGraph should generate these functions |
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PackedVaryings PackVaryings(Varyings input) |
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{ |
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PackedVaryings output; |
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output.positionCS = input.positionCS; |
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#ifdef VARYING_WANT_TANGENT_TO_WORLD |
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output.interpolators1.xyz = input.tangentToWorld[0]; |
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output.interpolators2.xyz = input.tangentToWorld[1]; |
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output.interpolators3.xyz = input.tangentToWorld[2]; |
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#ifdef VARYING_WANT_POSITION_WS |
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output.interpolators1.w = input.positionWS.x; |
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output.interpolators2.w = input.positionWS.y; |
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output.interpolators3.w = input.positionWS.z; |
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#else |
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output.interpolators1.w = 0.0; |
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output.interpolators2.w = 0.0; |
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output.interpolators3.w = 0.0; |
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#endif |
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#else |
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#ifdef VARYING_WANT_POSITION_WS |
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output.interpolators0.xyz = input.positionWS; |
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output.interpolators0.w = 0.0; |
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#endif |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD0 |
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output.interpolators4.xy = input.texCoord0; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD1 |
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output.interpolators4.zw = input.texCoord1; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD2 |
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output.interpolators5.xy = input.texCoord2; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD3 |
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output.interpolators5.zw = input.texCoord3; |
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#endif |
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#ifdef VARYING_WANT_COLOR |
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output.interpolators6 = input.color; |
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#endif |
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return output; |
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} |
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FragInputs UnpackVaryings(PackedVaryings input) |
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{ |
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FragInputs output; |
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ZERO_INITIALIZE(FragInputs, output); |
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output.unPositionSS = input.positionCS; // input.positionCS is SV_Position |
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#ifdef VARYING_WANT_TANGENT_TO_WORLD |
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output.tangentToWorld[0] = input.interpolators1.xyz; |
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output.tangentToWorld[1] = input.interpolators2.xyz; |
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output.tangentToWorld[2] = input.interpolators3.xyz; |
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#ifdef WANT_PER_PIXEL_WORLDPOS |
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output.positionWS.xyz = float3(input.interpolators1.w, input.interpolators2.w, input.interpolators3.w); |
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#endif |
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#else |
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#ifdef VARYING_WANT_POSITION_WS |
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output.positionWS.xyz = input.interpolators0.xyz; |
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#endif |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD0 |
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output.texCoord0 = input.interpolators4.xy; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD1 |
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output.texCoord1 = input.interpolators4.zw; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD2 |
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output.texCoord2 = input.interpolators5.xy; |
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#endif |
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#ifdef VARYING_WANT_TEXCOORD3 |
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output.texCoord3 = input.interpolators5.zw; |
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#endif |
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#ifdef VARYING_WANT_COLOR |
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output.color = input.interpolators6; |
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#endif |
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return output; |
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} |
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#ifdef TESSELLATION_ON |
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// Varying DS - use for domain shader |
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// We can deduce these define from the other define |
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// We need to pass to DS any varying required by pixel shader |
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// If we have required an attribute it mean we will use it at least for DS |
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#ifdef VARYING_WANT_TANGENT_TO_WORLD |
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#define VARYING_DS_WANT_TANGENT_TO_WORLD |
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#endif |
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#if defined(VARYING_WANT_TEXCOORD0) || defined(ATTRIBUTES_WANT_UV0) |
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#define VARYING_DS_WANT_TEXCOORD0 |
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#endif |
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#if defined(VARYING_WANT_TEXCOORD1) || defined(ATTRIBUTES_WANT_UV1) |
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#define VARYING_DS_WANT_TEXCOORD1 |
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#endif |
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#if defined(VARYING_WANT_TEXCOORD2) || defined(ATTRIBUTES_WANT_UV2) |
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#define VARYING_DS_WANT_TEXCOORD2 |
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#endif |
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#if defined(VARYING_WANT_TEXCOORD3) || defined(ATTRIBUTES_WANT_UV3) |
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#define VARYING_DS_WANT_TEXCOORD3 |
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#endif |
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#if defined(VARYING_WANT_COLOR) || defined(ATTRIBUTES_WANT_COLOR) |
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float4 VARYING_DS_WANT_COLOR; |
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#endif |
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#endif |
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// Varying for domain shader |
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// Position and normal are always present (for tessellation) and in world space |
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struct VaryingsDS |
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{ |
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float3 positionWS; |
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float3 normalWS; |
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#ifdef VARYING_DS_WANT_TANGENT_TO_WORLD |
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float4 tangentWS; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD0 |
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float2 texCoord0; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD1 |
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float2 texCoord1; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD2 |
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float2 texCoord2; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD3 |
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float2 texCoord3; |
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#endif |
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#ifdef VARYING_DS_WANT_COLOR |
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float4 color; |
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#endif |
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}; |
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struct PackedVaryingsDS |
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{ |
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float3 interpolators0 : TEXCOORD0; // positionWS |
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float3 interpolators1 : TEXCOORD1; // normalWS |
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#ifdef VARYING_DS_WANT_TANGENT_TO_WORLD |
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float4 interpolators2 : TEXCOORD2; |
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#endif |
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// Allocate only necessary space if shader compiler in the future are able to automatically pack |
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#ifdef VARYING_DS_WANT_TEXCOORD1 |
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float4 interpolators3 : TEXCOORD3; |
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#elif defined(VARYING_DS_WANT_TEXCOORD0) |
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float2 interpolators3 : TEXCOORD3; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD3 |
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float4 interpolators4 : TEXCOORD4; |
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#elif defined(VARYING_DS_WANT_TEXCOORD2) |
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float2 interpolators4 : TEXCOORD4; |
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#endif |
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#ifdef VARYING_DS_WANT_COLOR |
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float4 interpolators5 : TEXCOORD5; |
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#endif |
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}; |
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// Functions to pack data to use as few interpolator as possible, the ShaderGraph should generate these functions |
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PackedVaryingsDS PackVaryingsDS(VaryingsDS input) |
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{ |
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PackedVaryingsDS output; |
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output.interpolators0 = input.positionWS; |
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output.interpolators1 = input.normalWS; |
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#ifdef VARYING_DS_WANT_TANGENT_TO_WORLD |
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output.interpolators2 = input.tangentWS; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD0 |
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output.interpolators3.xy = input.texCoord0; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD1 |
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output.interpolators3.zw = input.texCoord1; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD2 |
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output.interpolators4.xy = input.texCoord2; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD3 |
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output.interpolators4.zw = input.texCoord3; |
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#endif |
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#ifdef VARYING_DS_WANT_COLOR |
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output.interpolators5 = input.color; |
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#endif |
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return output; |
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} |
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VaryingsDS UnpackVaryingsDS(PackedVaryingsDS input) |
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{ |
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VaryingsDS output; |
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output.positionWS = input.interpolators0; |
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output.normalWS = input.interpolators1; |
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#ifdef VARYING_DS_WANT_TANGENT_TO_WORLD |
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output.tangentWS = input.interpolators2; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD0 |
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output.texCoord0 = input.interpolators3.xy; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD1 |
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output.texCoord1 = input.interpolators3.zw; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD2 |
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output.texCoord2 = input.interpolators4.xy; |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD3 |
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output.texCoord3 = input.interpolators4.zw; |
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#endif |
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#ifdef VARYING_DS_WANT_COLOR |
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output.color = input.interpolators5; |
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#endif |
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return output; |
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} |
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VaryingsDS InterpolateWithBaryCoords(VaryingsDS input0, VaryingsDS input1, VaryingsDS input2, float3 baryCoords) |
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{ |
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VaryingsDS ouput; |
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TESSELLATION_INTERPOLATE_BARY(positionWS, baryCoords); |
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TESSELLATION_INTERPOLATE_BARY(normalWS, baryCoords); |
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#ifdef VARYING_DS_WANT_TANGENT_TO_WORLD |
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TESSELLATION_INTERPOLATE_BARY(tangentWS, baryCoords); |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD0 |
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TESSELLATION_INTERPOLATE_BARY(texCoord0, baryCoords); |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD1 |
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TESSELLATION_INTERPOLATE_BARY(texCoord1, baryCoords); |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD2 |
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TESSELLATION_INTERPOLATE_BARY(texCoord2, baryCoords); |
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#endif |
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#ifdef VARYING_DS_WANT_TEXCOORD3 |
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TESSELLATION_INTERPOLATE_BARY(texCoord3, baryCoords); |
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#endif |
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#ifdef VARYING_DS_WANT_COLOR |
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TESSELLATION_INTERPOLATE_BARY(color, baryCoords); |
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#endif |
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return ouput; |
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} |
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#endif // TESSELLATION_ON |
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#ifdef TESSELLATION_ON |
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#define VaryingsType VaryingsDS |
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#define PackedVaryingsType PackedVaryingsDS |
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#define PackVaryingsType PackVaryingsDS |
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#else |
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#define VaryingsType Varyings |
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#define PackedVaryingsType PackedVaryings |
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#define PackVaryingsType PackVaryings |
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#endif |
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PackedVaryingsType Vert(Attributes input) |
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{ |
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VaryingsType output; |
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#if defined(TESSELLATION_ON) |
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output.positionWS = TransformObjectToWorld(input.positionOS); |
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// TODO deal with camera center rendering and instancing (This is the reason why we always perform tow steps transform to clip space + instancing matrix) |
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output.normalWS = TransformObjectToWorldNormal(input.normalOS); |
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#if defined(VARYING_DS_WANT_TANGENT_TO_WORLD) || defined(VARYING_WANT_TANGENT_TO_WORLD) |
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output.tangentWS = float4(TransformObjectToWorldDir(input.tangentOS.xyz), input.tangentOS.w); |
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#endif |
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#else |
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float3 positionWS = TransformObjectToWorld(input.positionOS); |
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// TODO deal with camera center rendering and instancing (This is the reason why we always perform tow steps transform to clip space + instancing matrix) |
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output.positionCS = TransformWorldToHClip(positionWS); |
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#ifdef VARYING_WANT_TANGENT_TO_WORLD |
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float3 normalWS = TransformObjectToWorldNormal(input.normalOS); |
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float4 tangentWS = float4(TransformObjectToWorldDir(input.tangentOS.xyz), input.tangentOS.w); |
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float3x3 tangentToWorld = CreateTangentToWorld(normalWS, tangentWS.xyz, tangentWS.w); |
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output.tangentToWorld[0] = tangentToWorld[0]; |
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output.tangentToWorld[1] = tangentToWorld[1]; |
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output.tangentToWorld[2] = tangentToWorld[2]; |
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#endif |
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#endif |
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#if defined(VARYING_WANT_TEXCOORD0) || defined(VARYING_DS_WANT_TEXCOORD0) |
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output.texCoord0 = input.uv0; |
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#endif |
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#if defined(VARYING_WANT_TEXCOORD1) || defined(VARYING_DS_WANT_TEXCOORD1) |
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output.texCoord1 = input.uv1; |
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#endif |
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#if defined(VARYING_WANT_TEXCOORD2) || defined(VARYING_DS_WANT_TEXCOORD2) |
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output.texCoord2 = input.uv2; |
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#endif |
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#if defined(VARYING_WANT_TEXCOORD3) || defined(VARYING_DS_WANT_TEXCOORD3) |
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output.texCoord3 = input.uv3; |
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#endif |
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#if defined(VARYING_WANT_COLOR) || defined(VARYING_DS_WANT_COLOR) |
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output.color = input.color; |
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#endif |
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return PackVaryingsType(output); |
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} |
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