cleaned up PR

com.unity.render-pipelines.high-definition/CHANGELOG.md

 - Fix display correct target platform when showing message to inform user that a platform is not supported
 - Remove workaround for metal and vulkan in normal buffer encoding/decoding
 - Fixed an issue with color picker not working in forward
+- Decals corectly update normal buffer in forward 
 
 ### Changed
 - Changed default reflection probe to be 256x256x6 and array size to be 64

com.unity.render-pipelines.high-definition/HDRP/Material/Decal/Decal.shader

 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 													  // back faces with zfail, for cases when camera is inside the decal volume
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 													   // back faces with zfail, for cases when camera is inside the decal volume
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }
 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }

com.unity.render-pipelines.high-definition/HDRP/Material/Decal/DecalNormalBuffer.shader

             // not optimal because we also process pixels that might not have any normals
             Stencil
             {
-                WriteMask 255
                 Ref 2
                 Comp Equal
                 Pass Zero

com.unity.render-pipelines.high-definition/HDRP/Material/GBufferManager.cs

 
             for (int gbufferIndex = 0; gbufferIndex < m_BufferCount; ++gbufferIndex)
             {
-                m_RTs[gbufferIndex] = RTHandles.Alloc(Vector2.one, colorFormat: rtFormat[gbufferIndex], sRGB: sRGBFlags[gbufferIndex], filterMode: FilterMode.Point, name: string.Format("GBuffer{0}", gbufferIndex), enableRandomWrite: gbufferIndex == 1);
+                m_RTs[gbufferIndex] = RTHandles.Alloc(Vector2.one, colorFormat: rtFormat[gbufferIndex], sRGB: sRGBFlags[gbufferIndex], filterMode: FilterMode.Point, name: string.Format("GBuffer{0}", gbufferIndex), enableRandomWrite: gbufferIndex == 1); // normal buffer is used as RWTexture to composite decals in forward
                 m_RTIDs[gbufferIndex] = m_RTs[gbufferIndex].nameID;
                 m_TextureShaderIDs[gbufferIndex] = HDShaderIDs._GBufferTexture[gbufferIndex];
 

com.unity.render-pipelines.high-definition/HDRP/Material/Lit/Lit.shader

 
             Stencil
             {
-                WriteMask 255
-                Ref[_StencilRef]
                 Comp Always
                 Pass IncrSat
             }