LWJGL OpenGL - Line from 3d point to center of screen

Question

Is there is an easy way to draw a line from a 3D point, in this case, it's 0, 0, 0, to the center of the screen?

Answer 1

You could use gluUnProject to figure out the 3D coordinates of the screen center (at a given depth), then draw a line between two 3D points.