Is there a way to use OpenGL commans to mark areas

[Noor]

Hi

I have a Home coordinate system with 2 vectors and seperate coordinate system marked P1 and P2. Now I would like to draw a thick line between the two points, but the endline at each point should tilt according to the orientation of the local coordinate system. Is there a simple way to solve this by OpenGL commands or do I have to do ordinary matrix conversion/multiplication to find the corners. This last works, but costs some CPU.

Thanks

[donBerto]

first, did somebody answer your question? second, can you be more specific and give us more details as to what you're doing?