Treats the given values as a vector, augments this vector with a 0, multiplies it against the matrix, and returns a deaugmented vector of the first values
overload 1:
Matrix4:applyDir(vec)
| Method Property | Fluent Description | Representation |
| vec accepts | a Vector3 | |
| Return Value | a Vector3 | |
overload 2:
Matrix4:applyDir(x, y, z)
| Method Property | Fluent Description | Representation |
| x accepts | a Number | |
| y accepts | a Number | |
| z accepts | a Number | |
| Return Value | a Vector3 | |