dec
Overloads the unary decrement operator (--).
Returns a new Matrix4 instance where each component of this matrix has been decremented by 1.0f. This operation does not modify the original Matrix4 instance.
When this operator is used on a var variable (e.g., matrix--), the variable matrix will be reassigned to the new, decremented Matrix4 instance.
Return
A new Matrix4 where each element is this_element - 1.0f.