HDRenderPipeline: make the shader compile

Assets/ScriptableRenderLoop/HDRenderPipeline/Material/Lit/ShaderPass/LitDepthPass.hlsl

     output.normalOS = input.normalOS;
     output.tangentOS = input.tangentOS;
 #endif
+
+    return output;
 }
 
 Attributes AttributesTesselationToAttributes(AttributesTesselation input)
     output.normalOS = input.normalOS;
     output.tangentOS = input.tangentOS;
 #endif
+
+    return output;
 }
 
 AttributesTesselation InterpolateWithBary(AttributesTesselation input0, AttributesTesselation input1, AttributesTesselation input2, float3 baryWeight)

Assets/ScriptableRenderLoop/HDRenderPipeline/Material/Lit/ShaderPass/LitDistortionPass.hlsl

     output.normalOS = input.normalOS;
     output.tangentOS = input.tangentOS;
 #endif
+
+    return output;
 }
 
 Attributes AttributesTesselationToAttributes(AttributesTesselation input)
     output.normalOS = input.normalOS;
     output.tangentOS = input.tangentOS;
 #endif
+
+    return output;
 }
 
 AttributesTesselation InterpolateWithBary(AttributesTesselation input0, AttributesTesselation input1, AttributesTesselation input2, float3 baryWeight)

Assets/ScriptableRenderLoop/HDRenderPipeline/Material/Lit/ShaderPass/LitSharePass.hlsl

 #endif
     output.tangentOS = input.tangentOS;
     output.color = input.color;
+
+    return output;
 }
 
 Attributes AttributesTesselationToAttributes(AttributesTesselation input)
 #endif
     output.tangentOS = input.tangentOS;
     output.color = input.color;
+
+    return output;
 }
 
 AttributesTesselation InterpolateWithBary(AttributesTesselation input0, AttributesTesselation input1, AttributesTesselation input2, float3 baryWeight)

Assets/ScriptableRenderLoop/HDRenderPipeline/Material/Lit/ShaderPass/LitVelocityPass.hlsl

  //   output.normalOS = input.normalOS;
     output.tangentOS = input.tangentOS;
 #endif
+
+    return output;
 }
 
 Attributes AttributesTesselationToAttributes(AttributesTesselation input)
 //    output.normalOS = input.normalOS;
     output.tangentOS = input.tangentOS;
 #endif
+
+    return output;
 }
 
 AttributesTesselation InterpolateWithBary(AttributesTesselation input0, AttributesTesselation input1, AttributesTesselation input2, float3 baryWeight)

Assets/ScriptableRenderLoop/HDRenderPipeline/Material/Tesselation/TesselationShare.hlsl

     return ouput;
 }
 
-// add [maxtessfactor(15)] ?
-[UNITY_domain("tri")]
-[UNITY_partitioning("fractional_odd")]
-[UNITY_outputtopology("triangle_cw")]
-[UNITY_patchconstantfunc("HullConstant")]
-[UNITY_outputcontrolpoints(3)]
+[maxtessfactor(15.0)] // AMD recommand this value for GCN http://amd-dev.wpengine.netdna-cdn.com/wordpress/media/2013/05/GCNPerformanceTweets.pdf
+[domain("tri")]
+[partitioning("fractional_odd")]
+[outputtopology("triangle_cw")]
+[patchconstantfunc("HullConstant")]
+[outputcontrolpoints(3)]
-[UNITY_domain("tri")]
+[domain("tri")]
 PackedVaryings Domain(TessellationFactors tessFactors, const OutputPatch<AttributesTesselation, 3> input, float3 baryWeight : SV_DomainLocation)
 {
     Attributes params = InterpolateWithBary(input[0], input[1], input[2], baryWeight);