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50 行
4.3 KiB
50 行
4.3 KiB
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VertexDescriptionInputs AttributesMeshToVertexDescriptionInputs(AttributesMesh input)
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{
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VertexDescriptionInputs output;
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ZERO_INITIALIZE(VertexDescriptionInputs, output);
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$VertexDescriptionInputs.ObjectSpaceNormal: output.ObjectSpaceNormal = input.normalOS;
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$VertexDescriptionInputs.WorldSpaceNormal: output.WorldSpaceNormal = TransformObjectToWorldNormal(input.normalOS);
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$VertexDescriptionInputs.ViewSpaceNormal: output.ViewSpaceNormal = TransformWorldToViewDir(output.WorldSpaceNormal);
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$VertexDescriptionInputs.TangentSpaceNormal: output.TangentSpaceNormal = float3(0.0f, 0.0f, 1.0f);
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$VertexDescriptionInputs.ObjectSpaceTangent: output.ObjectSpaceTangent = input.tangentOS;
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$VertexDescriptionInputs.WorldSpaceTangent: output.WorldSpaceTangent = TransformObjectToWorldDir(input.tangentOS.xyz);
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$VertexDescriptionInputs.ViewSpaceTangent: output.ViewSpaceTangent = TransformWorldToViewDir(output.WorldSpaceTangent);
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$VertexDescriptionInputs.TangentSpaceTangent: output.TangentSpaceTangent = float3(1.0f, 0.0f, 0.0f);
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$VertexDescriptionInputs.ObjectSpaceBiTangent: output.ObjectSpaceBiTangent = normalize(cross(input.normalOS, input.tangentOS) * (input.tangentOS.w > 0.0f ? 1.0f : -1.0f) * GetOddNegativeScale());
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$VertexDescriptionInputs.WorldSpaceBiTangent: output.WorldSpaceBiTangent = TransformObjectToWorldDir(output.ObjectSpaceBiTangent);
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$VertexDescriptionInputs.ViewSpaceBiTangent: output.ViewSpaceBiTangent = TransformWorldToViewDir(output.WorldSpaceBiTangent);
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$VertexDescriptionInputs.TangentSpaceBiTangent: output.TangentSpaceBiTangent = float3(0.0f, 1.0f, 0.0f);
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$VertexDescriptionInputs.ObjectSpacePosition: output.ObjectSpacePosition = input.positionOS;
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$VertexDescriptionInputs.WorldSpacePosition: output.WorldSpacePosition = GetAbsolutePositionWS(TransformObjectToWorld(input.positionOS));
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$VertexDescriptionInputs.ViewSpacePosition: output.ViewSpacePosition = TransformWorldToView(output.WorldSpacePosition);
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$VertexDescriptionInputs.TangentSpacePosition: output.TangentSpacePosition = float3(0.0f, 0.0f, 0.0f);
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$VertexDescriptionInputs.WorldSpaceViewDirection: output.WorldSpaceViewDirection = GetWorldSpaceNormalizeViewDir(output.WorldSpacePosition);
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$VertexDescriptionInputs.ObjectSpaceViewDirection: output.ObjectSpaceViewDirection = TransformWorldToObjectDir(output.WorldSpaceViewDirection);
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$VertexDescriptionInputs.ViewSpaceViewDirection: output.ViewSpaceViewDirection = TransformWorldToViewDir(output.WorldSpaceViewDirection);
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$VertexDescriptionInputs.TangentSpaceViewDirection: float3x3 tangentSpaceTransform = float3x3(output.WorldSpaceTangent,output.WorldSpaceBiTangent,output.WorldSpaceNormal);
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$VertexDescriptionInputs.TangentSpaceViewDirection: output.TangentSpaceViewDirection = mul(tangentSpaceTransform, output.WorldSpaceViewDirection);
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$VertexDescriptionInputs.ScreenPosition: output.ScreenPosition = ComputeScreenPos(TransformWorldToHClip(output.WorldSpacePosition), _ProjectionParams.x);
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$VertexDescriptionInputs.uv0: output.uv0 = float4(input.uv0, 0.0f, 0.0f);
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$VertexDescriptionInputs.uv1: output.uv1 = float4(input.uv1, 0.0f, 0.0f);
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$VertexDescriptionInputs.uv2: output.uv2 = float4(input.uv2, 0.0f, 0.0f);
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$VertexDescriptionInputs.uv3: output.uv3 = float4(input.uv3, 0.0f, 0.0f);
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$VertexDescriptionInputs.VertexColor: output.VertexColor = input.color;
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return output;
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}
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AttributesMesh ApplyMeshModification(AttributesMesh input)
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{
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// build graph inputs
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VertexDescriptionInputs vertexDescriptionInputs = AttributesMeshToVertexDescriptionInputs(input);
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// evaluate vertex graph
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VertexDescription vertexDescription = VertexDescriptionFunction(vertexDescriptionInputs);
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// copy graph output to the results
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$VertexDescription.Position: input.positionOS = vertexDescription.Position;
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return input;
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}
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