How To: Create a Domain Shader

A domain shader is the third of three stages that work together to implement tessellation. The inputs for the domain-shader stage come from a hull shader. This topic shows how to create a domain shader.

A domain shader transforms surface geometry (created by the fixed-function tessellator stage) using hull shader output-control points, hull shader output patch-constant data, and a single set of tessellator uv coordinates.

To create a domain shader

  1. Design a domain shader. See How To: Design a Domain Shader.

  2. Compile the shader code.

  3. Create a domain-shader object using ID3D11Device::CreateDomainShader.

    HRESULT CreateDomainShader(
      const void *pShaderBytecode, // 
      SIZE_T BytecodeLength, // 
      ID3D11ClassLinkage *pClassLinkage, // 
      ID3D11DomainShader **ppDomainShader
  4. Initialize the pipeline stage using ID3D11DeviceContext::DSSetShader.

    void DSSetShader(
      ID3D11DomainShader *pDomainShader, // 
      ID3D11ClassInstance *const *ppClassInstances,
      UINT NumClassInstances

A domain shader must be bound to the pipeline if a hull shader is bound. In particular, it is not valid to directly stream out hull shader control points with the geometry shader.

How to Use Direct3D 11

Tessellation Overview