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IDirect3DDevice9::SetVertexShaderConstantF method

Sets a floating-point vertex shader constant.

Syntax


HRESULT SetVertexShaderConstantF(
  [in]       UINT  StartRegister,
  [inconst float *pConstantData,
  [in]       UINT  Vector4fCount
);

Parameters

StartRegister [in]

Type: UINT

Register number that will contain the first constant value.

pConstantData [in]

Type: const float*

Pointer to an array of constants.

Vector4fCount [in]

Type: UINT

Number of four float vectors in the array of constants.

Return value

Type: HRESULT

If the method succeeds, the return value is D3D_OK. If the method fails, the return value can be D3DERR_INVALIDCALL.

Requirements

Header

D3D9.h

Library

D3D9.lib

See also

IDirect3DDevice9

 

 

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