invert
Inverts the specified orthonormal transform matrix and stores the result in 'this' matrix. The specified matrix's upper 3x3 is transposed, then its fourth column is transformed by the transposed upper 3x3 and negated. The result is stored in 'this' matrix.
The result of this method is undefined if this matrix is passed in as the matrix to invert, or if the matrix's values are not consistent with those of an orthonormal transform.
Return
this matrix set to the inverse of the specified matrix
Parameters
matrix
the matrix whose inverse is computed. The matrix is assumed to represent an orthonormal transform matrix.