Is it possible in OpenGL to split the screen into multiple rendering contexts? What I''m basically looking to do is have one area of the screen be rendered ortho and the rest with perspective. Or can I simply change the perspective type before rendering? Thanks for any help One

you can pretty much do as you like. you can use multiple rendering contexts or change the matrix before rendering. i think you should try testing both to see the frame rates you get. i have never tried to use multiple rendering contexts at the same time. i have changed the matrices for drawing text and it didn''t seem to bad. if you want to change rendering contexts just use wglMakeCurrent(HDC, HGLRC);

hope this helps.

You can also use primitives offered by GLUT : glutCreateSubWindow to...well, create a subwindow, and when you wanna update your sub window, call glutSetWindow with your subwindow''s identifier as the only parameter, and then postRedisplay it.

Should you encounter any problem with these functions, take a look at small apps such as those by Nate Robins, who makes an extensive use of them in his excellent OGL tutorials.

Good luck, Vince