Description:
Initializes a new point by defining the X, Y and Z coordinates.
Description:
Initializes a new point by copying coordinates from another point.
Description:
Initializes a new point by copying coordinates from a single-precision point.
Description:
Initializes a new point by copying coordinates from a four-dimensional point. The first three coordinates are divided by the last one. If the W (fourth) dimension of the input point is zero, then it will be just discarded.