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
 
 
 
 

90 行
2.4 KiB

#ifndef SHADERPASS
#error Undefine_SHADERPASS
#endif
CBUFFER_START(UnityMetaPass)
// x = use uv1 as raster position
// y = use uv2 as raster position
bool4 unity_MetaVertexControl;
// x = return albedo
// y = return normal
bool4 unity_MetaFragmentControl;
CBUFFER_END
// This was not in constant buffer in original unity, so keep outiside. But should be in as ShaderRenderPass frequency
float unity_OneOverOutputBoost;
float unity_MaxOutputValue;
struct Attributes
{
float3 positionOS : POSITION;
float3 normalOS : NORMAL;
float2 uv0 : TEXCOORD0;
float2 uv1 : TEXCOORD1;
float2 uv2 : TEXCOORD2;
};
struct Varyings
{
float4 positionCS;
float2 texCoord0;
float2 texCoord1;
};
struct PackedVaryings
{
float4 positionCS : SV_Position;
float4 interpolators[1] : TEXCOORD0;
};
// Function to pack data to use as few interpolator as possible, the ShaderGraph should generate these functions
PackedVaryings PackVaryings(Varyings input)
{
PackedVaryings output;
output.positionCS = input.positionCS;
output.interpolators[0].xy = input.texCoord0;
output.interpolators[0].zw = input.texCoord1;
return output;
}
FragInputs UnpackVaryings(PackedVaryings input)
{
FragInputs output;
ZERO_INITIALIZE(FragInputs, output);
output.unPositionSS = input.positionCS; // input.positionCS is SV_Position
output.texCoord0 = input.interpolators[0].xy;
output.texCoord1 = input.interpolators[0].zw;
return output;
}
PackedVaryings Vert(Attributes input)
{
Varyings output;
// Output UV coordinate in vertex shader
if (unity_MetaVertexControl.x)
{
input.positionOS.xy = input.uv1 * unity_LightmapST.xy + unity_LightmapST.zw;
// OpenGL right now needs to actually use incoming vertex position,
// so use it in a very dummy way
//v.positionOS.z = vertex.z > 0 ? 1.0e-4f : 0.0f;
}
if (unity_MetaVertexControl.y)
{
input.positionOS.xy = input.uv2 * unity_DynamicLightmapST.xy + unity_DynamicLightmapST.zw;
// OpenGL right now needs to actually use incoming vertex position,
// so use it in a very dummy way
//v.positionOS.z = vertex.z > 0 ? 1.0e-4f : 0.0f;
}
float3 positionWS = TransformObjectToWorld(input.positionOS);
output.positionCS = TransformWorldToHClip(positionWS);
output.texCoord0 = input.uv0;
output.texCoord1 = input.uv1;
return PackVaryings(output);
}