I need to take a 3d point in the world (eg. "The cow is at (12, 63, -19)") and project it to 2d screen coordinates (eg. "The cow is 243 pixels from the left of the screen, and 87 pixels from the top of the screen").   I found this: https://forums.minecraftforge.net/topic/75508-how-do-i-convert-a-3d-point-to-screen-coordinates/ but it is non-functional.  I tried figuring out the rotations on my own, but that also didn't work.  Both produce incorrect projections, that don't seem to corre