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dcl_inputPrimitive (sm4 - asm)

  • Article

Declares the primitive type for geometry-shader inputs.

dcl_inputPrimitive type
Item Description
type
 [in] Input-data primitive type, which is one of the following:
  • point - point list
  • line - line list
  • triangle - triangle list
  • line_adj - line list with adjacency data
  • triangle_adj - triangle list with adjacency data

This instruction applies to the following shader stages:

Vertex Shader Geometry Shader Pixel Shader
x

This instruction is included to aid in debugging a shader in assembly; you cannot author a shader in assembly language using Shader Model 4.

Example

Here is an example.

dcl_inputPrimitive triangle

Minimum Shader Model

This function is supported in the following shader models.

Shader Model Supported
Shader Model 5 yes
Shader Model 4.1 yes
Shader Model 4 yes
Shader Model 3 (DirectX HLSL) no
Shader Model 2 (DirectX HLSL) no
Shader Model 1 (DirectX HLSL) no

Shader Model 4 Assembly (DirectX HLSL)