Matrix4x4::SetToAppend

void SetToAppend(const Matrix4x4 & matrixA, const Matrix4x4 & matrixB);
void SetToAppend(const Matrix4x4 & matrixA, const Matrix3x4<T> & matrixB);
void SetToAppend(const Matrix4x4<T> & matrixA, const Matrix2x4<T> & matrixB);
void SetToAppend(const Matrix3x4<T> & matrixA, const Matrix4x4 & matrixB);
void SetToAppend(const Matrix2x4<T> & matrixA, const Matrix4x4 & matrixB);

SetToAppend initializes this matrix to the result of m0.Append(m1); more efficient than assignment followed by Append.