HDRenderPipeline: Draft to work at home

Assets/ScriptableRenderLoop/HDRenderPipeline/Material/Lit/LitDataInternal.hlsl

     ADD_IDX(layerTexCoord.details).uvXY = TRANSFORM_TEX(uvXY, ADD_IDX(_DetailMap));
 }
 
-float ADD_IDX(ApplyDisplacement)(inout FragInputs input, float3 viewDirTS, inout LayerTexCoord layerTexCoord)
-{
-    float height = 0.0f;
-
-#ifdef _HEIGHTMAP
-    height = (SAMPLE_LAYER_TEXTURE2D(ADD_IDX(_HeightMap), ADD_ZERO_IDX(sampler_HeightMap), ADD_IDX(layerTexCoord.base)).r - ADD_IDX(_HeightCenter)) * ADD_IDX(_HeightAmplitude);
-
-    //#ifdef _PER_PIXEL_DISPLACEMENT
-    // //height = SAMPLE_LAYER_TEXTURE2D(ADD_IDX(_HeightMap), ADD_ZERO_IDX(sampler_HeightMap), ADD_IDX(layerTexCoord.base)).r * ADD_IDX(_HeightScale) + ADD_IDX(_HeightBias);
-    // float2 offset = ParallaxOffset(viewDirTS, height);
-
-    // ADD_IDX(layerTexCoord.base).uv += offset;
-    // ADD_IDX(layerTexCoord.base).uvYZ += offset;
-    // ADD_IDX(layerTexCoord.base).uvZX += offset;
-    // ADD_IDX(layerTexCoord.base).uvXY += offset;
-
-    // ADD_IDX(layerTexCoord.details).uv += offset;
-    // ADD_IDX(layerTexCoord.details).uvYZ += offset;
-    // ADD_IDX(layerTexCoord.details).uvZX += offset;
-    // ADD_IDX(layerTexCoord.details).uvXY += offset;
-
-    // // Only modify texcoord for first layer, this will be use by for builtin data (like lightmap)
-    // if (LAYER_INDEX == 0)
-    // {
-    //     input.texCoord0 += offset;
-    //     input.texCoord1 += offset;
-    //     input.texCoord2 += offset;
-    //     input.texCoord3 += offset;
-    // }
-
-    // // Need to refetch for the right parallaxed height for layer blending to behave correctly...
-    // height = SAMPLE_LAYER_TEXTURE2D(ADD_IDX(_HeightMap), ADD_ZERO_IDX(sampler_HeightMap), ADD_IDX(layerTexCoord.base)).r * ADD_IDX(_HeightScale) + ADD_IDX(_HeightBias);
-
-    // #endif
-
-#endif
-
-    return height;
-}
-
 // Return opacity
 float ADD_IDX(GetSurfaceData)(FragInputs input, LayerTexCoord layerTexCoord, out SurfaceData surfaceData, out float3 normalTS)
 {

Assets/ScriptableRenderLoop/HDRenderPipeline/Material/Lit/LitTessellation.hlsl

     // Distance based tessellation
     if (_TessellationFactorMaxDistance > 0.0)
     {
-        tessFactor *= GetDistanceBasedTessFactor(p0, p1, p2, _WorldSpaceCameraPos, _TessellationFactorMinDistance, _TessellationFactorMaxDistance);
+        float distFactor = GetDistanceBasedTessFactor(p0, p1, p2, _WorldSpaceCameraPos, _TessellationFactorMinDistance, _TessellationFactorMaxDistance);
+        // We square the disance factor as it allow a better percptual descrease of vertex density.
+        tessFactor *= distFactor * distFactor;
     }
 
     tessFactor *= _TessellationFactor;

Assets/ScriptableRenderLoop/ShaderLibrary/CommonMaterial.hlsl

     return float3(oneMinusT, oneMinusT, oneMinusT) + b * t;
 }
 
+// MACRO from Legacy Untiy
+// Transforms 2D UV by scale/bias property
+#define TRANSFORM_TEX(tex, name) ((tex.xy) * name##_ST.xy + name##_ST.zw)
+
 #endif // UNITY_COMMON_MATERIAL_INCLUDED

Assets/TestScenes/HDTest/Leaf/GroundLeaf/Materials/GroundLeaf_Albedo.mat

   m_PrefabParentObject: {fileID: 0}
   m_PrefabInternal: {fileID: 0}
   m_Name: GroundLeaf_Albedo
-  m_Shader: {fileID: 4800000, guid: 6e4ae4064600d784cac1e41a9e6f2e59, type: 3}
-  m_ShaderKeywords: _ALPHACUTOFFENABLE_OFF _DISTORTIONDEPTHTEST_OFF _DISTORTIONONLY_OFF
-    _DOUBLESIDED_LIGHTING_FLIP _EMISSION _MASKMAP _METALLICGLOSSMAP _NORMALMAP _NORMALMAP_TANGENT_SPACE
+  m_Shader: {fileID: 4800000, guid: 756bac9090102564582875f4c7e30202, type: 3}
+  m_ShaderKeywords: _ALPHACUTOFFENABLE_OFF _DEPTHOFFSETENABLE_OFF _DETAIL_MAP_WITH_NORMAL
+    _DISTORTIONDEPTHTEST_OFF _DISTORTIONENABLE_OFF _DISTORTIONONLY_OFF _DOUBLESIDED_LIGHTING_FLIP
+    _EMISSION _ENABLEPERPIXELDISPLACEMENT_OFF _HEIGHTMAP _MASKMAP _METALLICGLOSSMAP
+    _NORMALMAP _NORMALMAP_TANGENT_SPACE _TESSELLATIONOBJECTSCALE_OFF _TESSELLATION_DISPLACEMENT
+  m_EnableInstancingVariants: 0
+  disabledShaderPasses:
+  - DistortionVectors
+    - _AnisotropyMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
     - _BaseColorMap:
         m_Texture: {fileID: 2800000, guid: 00447c5eeb984f54d92c80818840a36b, type: 3}
         m_Scale: {x: 1, y: 1}
         m_Texture: {fileID: 0}
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
+    - _DetailMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
     - _DetailMask:
         m_Texture: {fileID: 0}
         m_Scale: {x: 1, y: 1}
         m_Texture: {fileID: 0}
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
+    - _DistortionVectorMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
     - _EmissionMap:
         m_Texture: {fileID: 0}
         m_Scale: {x: 1, y: 1}
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
     - _HeightMap:
-        m_Texture: {fileID: 0}
+        m_Texture: {fileID: 2800000, guid: 0c3144d154991884c8aa53e7dc7893ff, type: 3}
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
     - _MainTex:
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
     - _SubSurfaceRadiusMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _TangentMap:
         m_Texture: {fileID: 0}
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
+    - _Anisotropy: 0
+    - _DepthOffsetEnable: 0
+    - _DetailAOScale: 1
+    - _DetailAlbedoScale: 1
+    - _DetailHeightScale: 1
+    - _DetailMapMode: 0
+    - _DetailNormalScale: 1
+    - _DetailSmoothnessScale: 1
+    - _DistortionEnable: 0
+    - _EnablePerPixelDisplacement: 0
+    - _HeightAmplitude: 0.32
+    - _HeightCenter: 0.68
     - _HeightMapMode: 0
     - _HeightScale: 1
     - _MaterialId: 0
     - _Mode: 1
     - _NormalMapSpace: 0
+    - _NormalScale: 1
     - _OcclusionStrength: 1
     - _Parallax: 0.02
     - _Smoothness: 0.5
     - _SubSurfaceRadius: 0
     - _SurfaceType: 0
+    - _TessellationBackFaceCullEpsilon: -0.375
+    - _TessellationFactor: 4
+    - _TessellationFactorMaxDistance: 50
+    - _TessellationFactorMinDistance: 20
+    - _TessellationFactorTriangleSize: 100
+    - _TessellationMode: 1
+    - _TessellationObjectScale: 0
+    - _TessellationShapeFactor: 0.75
+    - _TexWorldScale: 1
+    - _UVBase: 0
+    - _UVDetail: 0
+    - _UVMappingPlanar: 0
+    - _ZTestMode: 8
     - _ZWrite: 1
     m_Colors:
     - _BaseColor: {r: 1, g: 1, b: 1, a: 1}
+    - _UVDetailsMappingMask: {r: 1, g: 0, b: 0, a: 0}
+    - _UVMappingMask: {r: 1, g: 0, b: 0, a: 0}

ProjectSettings/ProjectVersion.txt

-m_EditorVersion: 5.6.0b3
+m_EditorVersion: 5.6.0b4