Cg Direct3D9 Runtime API                cgD3D9SetUniformMatrix(3)



NAME
     cgD3D9SetUniformatrix - set the values of a uniform matrix
     parameter

SYNOPSIS
       #include 

       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 D3DOK if the function succeeds.

     Returns the D3D failure code if the function fails due to a
     D3D call.

DESCRIPTION
     cgD3D9SetUniformatrix 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), D3DXPI*0.5f);
       D3DXMatrixRotationAxis(&matRot[1], &D3DXVECTOR3(0,1,0), D3DXPI*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);


ERORS
     cgD3D9Failed is generated if a D3D function returns an



Cg Toolkit 2.1            Last change:                          1






Cg Direct3D9 Runtime API                cgD3D9SetUniformMatrix(3)



     error.

     CGD3D9ERNODEVICE is returned if a required D3D device is
     NUL.  This usually occurs when an expanded interface
     routine is called but a D3D device has not been set with
     cgD3D9SetDevice.

     CGD3D9ERNOTLOADED is returned if program was not loaded
     with the cgD3D9LoadProgram.

     CGD3D9ERNOTMATRIX is returned if param is not a matrix.

     CGD3D9ERNOTUNIFORM is returned if param is not a uniform
     parameter.

     CGD3D9ERINVALIDPARAM is returned if the parameter fails to
     set for any other reason.

HISTORY
     cgD3D9SetUniformatrix was introduced in Cg 1.1.

SEE ALSO
     cgD3D9SetUniform, cgD3D9SetUniformMatrixArray,
     cgD3D9TypeToSize































Cg Toolkit 2.1            Last change:                          2