ID3D11DeviceContext::GSSetShader Method

Set a geometry shader to the device.

Syntax

public:
void GSSetShader(
         ID3D11GeometryShader *pShader,
         ID3D11ClassInstance * const *ppClassInstances,
         UINT NumClassInstances
)

Parameters

pShader
Type: ID3D11GeometryShader *

[in, optional] Pointer to a geometry shader (see ID3D11GeometryShader). Passing in NULL disables the shader for this pipeline stage.

ppClassInstances
Type: ID3D11ClassInstance * const *

[in, optional] A pointer to an array of class-instance interfaces (see ID3D11ClassInstance). Each interface used by a shader must have a corresponding class instance or the shader will get disabled. Set ppClassInstances to NULL if the shader does not use any interfaces.

NumClassInstances
Type: UINT

The number of class-instance interfaces in the array.

Return value

None.

Remarks

The method will hold a reference to the interfaces passed in. This differs from the device state behavior in Direct3D 10.

The maximum number of instances a shader can have is 256.

Requirements

Header: Declared in d3d11_x.h (d3d11.h on other Windows platforms).