HLSL着色器可接受的输入输出语义

最新推荐文章于 2022-09-13 10:51:35 发布

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最新推荐文章于 2022-09-13 10:51:35 发布

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分类专栏： 3D游戏菜鸟之路文章标签： direct3d shader semantic blend resources integer

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顶点着色器

These semantics have meaning when attached to a vertex-shader parameters. These semantics are supported in both Direct3D 9 and Direct3D 10.

Input	Description	Type
BINORMAL[n]	Binormal	float4
BLENDINDICES[n]	Blend indices	uint
BLENDWEIGHT[n]	Blend weights	float
COLOR[n]	Diffuse and specular color	float4
NORMAL[n]	Normal vector	float4
POSITION[n]	Vertex position in object space.	float4
POSITIONT	Transformed vertex position.	float4
PSIZE[n]	Point size	float
TANGENT[n]	Tangent	float4
TEXCOORD[n]	Texture coordinates	float4
Output	Description	Type
COLOR[n]	Diffuse or specular color	float4
FOG	Vertex fog	float
POSITION[n]	Position of a vertex in homogenous space. Compute position in screen-space by dividing (x,y,z) by w. Every vertex shader must write out a parameter with this semantic.	float4
PSIZE	Point size	float
TESSFACTOR[n]	Tessellation factor	float
TEXCOORD[n]	Texture coordinates	float4

n is an optional integer between 0 and the number of resources supported. For example, POSITION0, TEXCOOR1, etc.

像素着色器

Pixel Shader Semantics

These semantics have meaning when attached to a pixel-shader input parameter. These semantics are supported in both Direct3D 9 and Direct3D 10.

Input	Description	Type
COLOR[n]	Diffuse or specular color.	float4
TEXCOORD[n]	Texture coordinates	float4
VFACE	Floating-point scalar that indicates a back-facing primitive. A negative value faces backwards, while a positive value faces the camera.	float
VPOS	The pixel location (x,y) in screen space. To convert a Direct3D 9 shader (that uses this semantic) to a Direct3D 10 shader, see Direct3D 9 VPOS and Direct3D 10 SV_Position)	float2
Output	Description	Type
COLOR[n]	Output color	float4
DEPTH[n]	Output depth	float

n is an optional integer between 0 and the number of resources supported. For example, PSIZE0, COLOR1, etc.

The COLOR semantic is only valid in shader compatibility mode (that is, when the shader is created using D3D10_SHADER_ENABLE_BACKWARDS_COMPATIBILITY).