您最多选择25个主题
主题必须以中文或者字母或数字开头，可以包含连字符 (-)，并且长度不得超过35个字符
66 行
2.9 KiB
66 行
2.9 KiB
//-------------------------------------------------------------------------------------
|
|
// Fill SurfaceData/Builtin data function
|
|
//-------------------------------------------------------------------------------------
|
|
#include "CoreRP/ShaderLibrary/Packing.hlsl"
|
|
#include "CoreRP/ShaderLibrary/Sampling/SampleUVMapping.hlsl"
|
|
#include "CoreRP/ShaderLibrary/EntityLighting.hlsl"
|
|
|
|
#if (SHADERPASS == SHADERPASS_DBUFFER_PROJECTOR)
|
|
void GetSurfaceData(float2 texCoordDS, float4x4 normalToWorld, out DecalSurfaceData surfaceData)
|
|
#elif (SHADERPASS == SHADERPASS_DBUFFER_MESH)
|
|
void GetSurfaceData(FragInputs input, out DecalSurfaceData surfaceData)
|
|
#endif
|
|
{
|
|
surfaceData.baseColor = _BaseColor;
|
|
surfaceData.normalWS = float4(0,0,0,0);
|
|
surfaceData.mask = float4(0,0,0,0);
|
|
surfaceData.MAOSBlend = float2(0, 0);
|
|
surfaceData.HTileMask = 0;
|
|
#if (SHADERPASS == SHADERPASS_DBUFFER_PROJECTOR)
|
|
float albedoMapBlend = clamp(normalToWorld[0][3], 0.0f, 1.0f);
|
|
float2 scale = float2(normalToWorld[3][0], normalToWorld[3][1]);
|
|
float2 offset = float2(normalToWorld[3][2], normalToWorld[3][3]);
|
|
float2 texCoords = texCoordDS * scale + offset;
|
|
#elif (SHADERPASS == SHADERPASS_DBUFFER_MESH)
|
|
float albedoMapBlend = _DecalBlend;
|
|
float2 texCoords = input.texCoord0;
|
|
#endif
|
|
|
|
#if _COLORMAP
|
|
surfaceData.baseColor *= SAMPLE_TEXTURE2D(_BaseColorMap, sampler_BaseColorMap, texCoords);
|
|
#endif
|
|
surfaceData.baseColor.w *= albedoMapBlend;
|
|
albedoMapBlend = surfaceData.baseColor.w;
|
|
// outside _COLORMAP because we still have base color
|
|
#if _ALBEDOCONTRIBUTION
|
|
surfaceData.HTileMask |= DBUFFERHTILEBIT_DIFFUSE;
|
|
#else
|
|
surfaceData.baseColor.w = 0; // dont blend any albedo
|
|
#endif
|
|
|
|
// Default to _DecalBlend, if we use _NormalBlendSrc as maskmap and there is no maskmap, it mean we have 1
|
|
float maskMapBlend = _DecalBlend;
|
|
|
|
#if _MASKMAP
|
|
surfaceData.mask = SAMPLE_TEXTURE2D(_MaskMap, sampler_MaskMap, texCoords);
|
|
maskMapBlend *= surfaceData.mask.z; // store before overwriting with smoothness
|
|
surfaceData.mask.z = surfaceData.mask.w;
|
|
surfaceData.HTileMask |= DBUFFERHTILEBIT_MASK;
|
|
surfaceData.mask.w = _MaskBlendSrc ? maskMapBlend : albedoMapBlend;
|
|
#endif
|
|
|
|
// needs to be after mask, because blend source could be in the mask map blue
|
|
#if _NORMALMAP
|
|
float3 normalTS = UnpackNormalmapRGorAG(SAMPLE_TEXTURE2D(_NormalMap, sampler_NormalMap, texCoords));
|
|
#if (SHADERPASS == SHADERPASS_DBUFFER_PROJECTOR)
|
|
float3 normalWS = mul((float3x3)normalToWorld, normalTS);
|
|
#elif (SHADERPASS == SHADERPASS_DBUFFER_MESH)
|
|
// We need to normalize as we use mikkt tangent space and this is expected (tangent space is not normalize)
|
|
float3 normalWS = normalize(TransformTangentToWorld(normalTS, input.worldToTangent));
|
|
#endif
|
|
surfaceData.normalWS.xyz = normalWS * 0.5f + 0.5f;
|
|
surfaceData.HTileMask |= DBUFFERHTILEBIT_NORMAL;
|
|
surfaceData.normalWS.w = _NormalBlendSrc ? maskMapBlend : albedoMapBlend;
|
|
#endif
|
|
surfaceData.MAOSBlend.xy = float2(surfaceData.mask.w, surfaceData.mask.w);
|
|
}
|