XMMATRIX XM_CALLCONV XMLoadFloat4x3( const XMFLOAT4X3 *pSource );
Address of the XMFLOAT4X3 structure to load. This parameter must point to cached memory.
Returns an XMMATRIX loaded with the data from the pSource parameter.
XMFLOAT4X3 is a row-major form of the matrix. This function cannot be used to read column-major data since it assumes the last column is 0 0 0 1.
The members of the XMFLOAT4X3 structure (_11, _12, _13, and so on) are loaded into the corresponding members of the XMMATRIX. The remaining members of the returned XMMATRIX are 0.0f, except for _44, which is 1.0f.