struct VaryingsToPS { VaryingsMeshToPS vmesh; #ifdef VARYINGS_NEED_PASS VaryingsPassToPS vpass; #endif }; struct PackedVaryingsToPS { PackedVaryingsMeshToPS vmesh; #ifdef VARYINGS_NEED_PASS PackedVaryingsPassToPS vpass; #endif }; PackedVaryingsToPS PackVaryingsToPS(VaryingsToPS input) { PackedVaryingsToPS output; output.vmesh = PackVaryingsMeshToPS(input.vmesh); #ifdef VARYINGS_NEED_PASS output.vpass = PackVaryingsPassToPS(input.vpass); #endif return output; } #ifdef TESSELLATION_ON struct VaryingsToDS { VaryingsMeshToDS vmesh; #ifdef VARYINGS_NEED_PASS VaryingsPassToDS vpass; #endif }; struct PackedVaryingsToDS { PackedVaryingsMeshToDS vmesh; #ifdef VARYINGS_NEED_PASS PackedVaryingsPassToDS vpass; #endif }; PackedVaryingsToDS PackVaryingsToDS(VaryingsToDS input) { PackedVaryingsToDS output; output.vmesh = PackVaryingsMeshToDS(input.vmesh); #ifdef VARYINGS_NEED_PASS output.vpass = PackVaryingsPassToDS(input.vpass); #endif return output; } VaryingsToDS UnpackVaryingsToDS(PackedVaryingsToDS input) { VaryingsToDS output; output.vmesh = UnpackVaryingsMeshToDS(input.vmesh); #ifdef VARYINGS_NEED_PASS output.vpass = UnpackVaryingsPassToDS(input.vpass); #endif return output; } VaryingsToDS InterpolateWithBaryCoordsToDS(VaryingsToDS input0, VaryingsToDS input1, VaryingsToDS input2, float3 baryCoords) { VaryingsToDS output; output.vmesh = InterpolateWithBaryCoordsMeshToDS(input0.vmesh, input1.vmesh, input2.vmesh, baryCoords); #ifdef VARYINGS_NEED_PASS output.vpass = InterpolateWithBaryCoordsPassToDS(input0.vpass, input1.vpass, input2.vpass, baryCoords); #endif return output; } #endif // TESSELLATION_ON #ifdef TESSELLATION_ON #define VaryingsType VaryingsToDS #define VaryingsMeshType VaryingsMeshToDS #define PackedVaryingsType PackedVaryingsToDS #define PackVaryingsType PackVaryingsToDS #else #define VaryingsType VaryingsToPS #define VaryingsMeshType VaryingsMeshToPS #define PackedVaryingsType PackedVaryingsToPS #define PackVaryingsType PackVaryingsToPS #endif // TODO: Here we will also have all the vertex deformation (GPU skinning, vertex animation, morph target...) or we will need to generate a compute shaders instead (better! but require work to deal with unpacking like fp16) VaryingsMeshType VertMesh(AttributesMesh input) { VaryingsMeshType output; UNITY_SETUP_INSTANCE_ID(input); UNITY_TRANSFER_INSTANCE_ID(input, output); float3 positionWS = TransformObjectToWorld(input.positionOS); #ifdef ATTRIBUTES_NEED_NORMAL float3 normalWS = TransformObjectToWorldNormal(input.normalOS); #else float3 normalWS = float3(0.0, 0.0, 0.0); // We need this case to be able to compile ApplyVertexModification that doesn't use normal. #endif #ifdef ATTRIBUTES_NEED_TANGENT float4 tangentWS = float4(TransformObjectToWorldDir(input.tangentOS.xyz), input.tangentOS.w); #endif // TODO: deal with camera center rendering and instancing (This is the reason why we always perform two steps transform to clip space + instancing matrix) #if defined(HAVE_VERTEX_MODIFICATION) ApplyVertexModification(input, normalWS, positionWS, _Time); #endif positionWS = GetCameraRelativePositionWS(positionWS); #ifdef TESSELLATION_ON output.positionWS = positionWS; output.normalWS = normalWS; #if defined(VARYINGS_NEED_TANGENT_TO_WORLD) || defined(VARYINGS_DS_NEED_TANGENT) output.tangentWS = tangentWS; #endif #else #ifdef VARYINGS_NEED_POSITION_WS output.positionWS = positionWS; #endif output.positionCS = TransformWorldToHClip(positionWS); #ifdef VARYINGS_NEED_TANGENT_TO_WORLD output.normalWS = normalWS; output.tangentWS = tangentWS; #endif #endif #if defined(VARYINGS_NEED_TEXCOORD0) || defined(VARYINGS_DS_NEED_TEXCOORD0) output.texCoord0 = input.uv0; #endif #if defined(VARYINGS_NEED_TEXCOORD1) || defined(VARYINGS_DS_NEED_TEXCOORD1) output.texCoord1 = input.uv1; #endif #if defined(VARYINGS_NEED_TEXCOORD2) || defined(VARYINGS_DS_NEED_TEXCOORD2) output.texCoord2 = input.uv2; #endif #if defined(VARYINGS_NEED_TEXCOORD3) || defined(VARYINGS_DS_NEED_TEXCOORD3) output.texCoord3 = input.uv3; #endif #if defined(VARYINGS_NEED_COLOR) || defined(VARYINGS_DS_NEED_COLOR) output.color = input.color; #endif return output; } #ifdef TESSELLATION_ON VaryingsMeshToPS VertMeshTesselation(VaryingsMeshToDS input) { VaryingsMeshToPS output; UNITY_SETUP_INSTANCE_ID(input); UNITY_TRANSFER_INSTANCE_ID(input, output); output.positionCS = TransformWorldToHClip(input.positionWS); #ifdef VARYINGS_NEED_POSITION_WS output.positionWS = input.positionWS; #endif #ifdef VARYINGS_NEED_TANGENT_TO_WORLD output.normalWS = input.normalWS; output.tangentWS = input.tangentWS; #endif #ifdef VARYINGS_NEED_TEXCOORD0 output.texCoord0 = input.texCoord0; #endif #ifdef VARYINGS_NEED_TEXCOORD1 output.texCoord1 = input.texCoord1; #endif #ifdef VARYINGS_NEED_TEXCOORD2 output.texCoord2 = input.texCoord2; #endif #ifdef VARYINGS_NEED_TEXCOORD3 output.texCoord3 = input.texCoord3; #endif #ifdef VARYINGS_NEED_COLOR output.color = input.color; #endif return output; } #endif // TESSELLATION_ON