dcl_outputTopology (sm4 - asm)

Declares the primitive type geometry-shader output data.

dcl_outputTopology Type




[in] An output primitive topology, which is one of the following values:

  • pointlist
  • linestrip
  • trianglestrip


This instruction applies to the following shader stages:

Vertex ShaderGeometry ShaderPixel Shader


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


Here is an example.

dcl_outputTopology trianglestrip

Minimum Shader Model

This function is supported in the following shader models.

Shader ModelSupported
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


Related topics

Shader Model 4 Assembly (DirectX HLSL)