Hi, I'm currently trying to make a spotlight which will run over a projector using OpenGL (so i can control focus, intensity and position of the light). However it seems that point_size maxes out at around 256. I'd like to illuminate the whole OpenGL window with this one 'point' (/spot) and be able to focus in on a very small area.

Is this possible?

If not I've considered having a second layer underneath the spotlight and as the spot increases in size the second layer brightens and when focused on one area it's black. This should mean that i could illuminate the whole OpenGL window that way, but seems a bit hacky.

Thanks

Lou