Hello, I''m wrote a 2D game with the d3d API because i wanted bitmap rotation, and a few of the other advantages that you get with 3d. But im having trouble detecting collisions. I wanted to know if somone could point me to a site that explains how to detect if polygons intersect. Right now all objects are flat and made of 2 polys each. so i just need to check if they overlap at all. Thx

Just a quick reply. This page focuses on 3D, but the individual resources mentioned should cover 2D intersections as well:

www.realtimerendering.com/int/

Graham Rhodes
Senior Scientist
Applied Research Associates, Inc.