NAME
cgD3D9SetUniformMatrix - set the values of a uniform matrix parameter
SYNOPSIS
#include <Cg/cgD3D9.h> HRESULT cgD3D9SetUniformMatrix( CGparameter param, const D3DMATRIX * matrix );PARAMETERS
- param
The parameter whose values are to be set. It must be a uniform matrix parameter.
- matrix
The matrix to set for the parameter. The upper-left portion of the matrix is extracted to fit the size of param.
RETURN VALUES
Returns D3D_OK if the function succeeds.
Returns the D3D failure code if the function fails due to a D3D call.
DESCRIPTION
cgD3D9SetUniformMatrix sets the values of a uniform matrix parameter.
EXAMPLES
// matrixParam is a CGparameter handle of type float3x2 // arrayParam is a CGparameter handle of type float4x4[2] ... // intialize the data for each parameter D3DXMATRIX matTexTransform( 0.5f, 0, 0, 0, 0, 0.5f, 0, 0, 0.5f, 0.5f, 0, 0, 0, 0, 0, 0 ); D3DXMATRIX matRot[2]; D3DXMatrixRotationAxis(&matRot[0], &D3DXVECTOR3(0,0,1), D3DX_PI*0.5f); D3DXMatrixRotationAxis(&matRot[1], &D3DXVECTOR3(0,1,0), D3DX_PI*0.5f); ... // only use the upper-left portion cgD3D9SetUniform(matrixParam, &matTexTransform); // you can use arrays, but you must set the entire array cgD3D9SetUniform(arrayParam, matRot);ERRORS
cgD3D9Failed is generated if a D3D function returns an error.
CGD3D9ERR_NODEVICE is returned if a required D3D device is NULL. This usually occurs when an expanded interface routine is called but a D3D device has not been set with cgD3D9SetDevice.
CGD3D9ERR_NOTLOADED is returned if program was not loaded with the cgD3D9LoadProgram.
CGD3D9ERR_NOTMATRIX is returned if param is not a matrix.
CGD3D9ERR_NOTUNIFORM is returned if param is not a uniform parameter.
CGD3D9ERR_INVALIDPARAM is returned if the parameter fails to set for any other reason.
HISTORY
cgD3D9SetUniformMatrix was introduced in Cg 1.1.
SEE ALSO
cgD3D9SetUniform, cgD3D9SetUniformMatrixArray, cgD3D9TypeToSize