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#if SHADERPASS != SHADERPASS_FORWARD
#error SHADERPASS_is_not_correctly_define
#endif
#include "VertMesh.hlsl"
PackedVaryingsType Vert(AttributesMesh inputMesh)
{
VaryingsType varyingsType;
varyingsType.vmesh = VertMesh(inputMesh);
return PackVaryingsType(varyingsType);
}
#ifdef TESSELLATION_ON
PackedVaryingsToPS VertTesselation(VaryingsToDS input)
{
VaryingsToPS output;
output.vmesh = VertMeshTesselation(input.vmesh);
return PackVaryingsToPS(output);
}
#include "TessellationShare.hlsl"
#endif // TESSELLATION_ON
void Frag(PackedVaryingsToPS packedInput,
#ifdef OUTPUT_SPLIT_LIGHTING
out float4 outColor : SV_Target0, // outSpecularLighting
out float4 outDiffuseLighting : SV_Target1,
OUTPUT_SSSBUFFER(outSSSBuffer)
#else
out float4 outColor : SV_Target0
#endif
#ifdef _DEPTHOFFSET_ON
, out float outputDepth : SV_Depth
#endif
)
{
FragInputs input = UnpackVaryingsMeshToFragInputs(packedInput.vmesh);
// input.positionSS is SV_Position
PositionInputs posInput = GetPositionInput(input.positionSS.xy, _ScreenSize.zw, input.positionSS.z, input.positionSS.w, input.positionRWS.xyz, uint2(input.positionSS.xy) / GetTileSize());
#ifdef VARYINGS_NEED_POSITION_WS
float3 V = GetWorldSpaceNormalizeViewDir(input.positionRWS);
#else
// Unused
float3 V = float3(1.0, 1.0, 1.0); // Avoid the division by 0
#endif
SurfaceData surfaceData;
BuiltinData builtinData;
GetSurfaceAndBuiltinData(input, V, posInput, surfaceData, builtinData);
#ifdef DEBUG_DISPLAY
ApplyDebugToSurfaceData(input.worldToTangent, surfaceData);
#endif
BSDFData bsdfData = ConvertSurfaceDataToBSDFData(input.positionSS.xy, surfaceData);
PreLightData preLightData = GetPreLightData(V, posInput, bsdfData);
outColor = float4(0.0, 0.0, 0.0, 0.0);
// We need to skip lighting when doing debug pass because the debug pass is done before lighting so some buffers may not be properly initialized potentially causing crashes on PS4.
#ifdef DEBUG_DISPLAY
// Init in debug display mode to quiet warning
#ifdef OUTPUT_SPLIT_LIGHTING
outDiffuseLighting = 0;
ENCODE_INTO_SSSBUFFER(surfaceData, posInput.positionSS, outSSSBuffer);
#endif
if (_DebugLightingMode != DEBUGLIGHTINGMODE_NONE || _DebugMipMapMode != DEBUGMIPMAPMODE_NONE)
#endif
{
#ifdef _SURFACE_TYPE_TRANSPARENT
uint featureFlags = LIGHT_FEATURE_MASK_FLAGS_TRANSPARENT;
#else
uint featureFlags = LIGHT_FEATURE_MASK_FLAGS_OPAQUE;
#endif
float3 diffuseLighting;
float3 specularLighting;
LightLoop(V, posInput, preLightData, bsdfData, builtinData, featureFlags, diffuseLighting, specularLighting);
#ifdef OUTPUT_SPLIT_LIGHTING
if (_EnableSubsurfaceScattering != 0 && ShouldOutputSplitLighting(bsdfData))
{
outColor = float4(specularLighting, 1.0);
outDiffuseLighting = float4(TagLightingForSSS(diffuseLighting), 1.0);
}
else
{
outColor = float4(diffuseLighting + specularLighting, 1.0);
outDiffuseLighting = 0;
}
ENCODE_INTO_SSSBUFFER(surfaceData, posInput.positionSS, outSSSBuffer);
#else
outColor = ApplyBlendMode(diffuseLighting, specularLighting, builtinData.opacity);
outColor = EvaluateAtmosphericScattering(posInput, outColor);
#endif
}
#ifdef _DEPTHOFFSET_ON
outputDepth = posInput.deviceDepth;
#endif
#ifdef DEBUG_DISPLAY
// Same code in ShaderPassForwardUnlit.shader
if (_DebugViewMaterial != 0)
{
float3 result = float3(1.0, 0.0, 1.0);
bool needLinearToSRGB = false;
GetPropertiesDataDebug(_DebugViewMaterial, result, needLinearToSRGB);
GetVaryingsDataDebug(_DebugViewMaterial, input, result, needLinearToSRGB);
GetBuiltinDataDebug(_DebugViewMaterial, builtinData, result, needLinearToSRGB);
GetSurfaceDataDebug(_DebugViewMaterial, surfaceData, result, needLinearToSRGB);
GetBSDFDataDebug(_DebugViewMaterial, bsdfData, result, needLinearToSRGB);
// TEMP!
// For now, the final blit in the backbuffer performs an sRGB write
// So in the meantime we apply the inverse transform to linear data to compensate.
if (!needLinearToSRGB)
result = SRGBToLinear(max(0, result));
outColor = float4(result, 1.0);
}
#endif
}