   3D picking - need help
  Hi all,I have a list of 4 million unique points. Each point is rotated by a quaternion on all three axes, then scaled by some random distance. My issues is trying to identify the correct point when I mouse click on it. I'm not sure if a ray point intersection will do the trick since I'd have to test against all 4 million points (or at least the ones with the same x,y as the ray).Is there a better way to do picking other than ray intersection?   
  I responded to your other thread here.   