# To subscribers of the xforms list from "Matthew J. Sheats" <email@example.com> :
I've been trying to get multiple GL canvases to display on one form for
some time now. I've read alot of past postings about people having
similar difficulties. I've tried out all of their suggestions, as well
as some from fellow grad students, but have had no luck.
The trick is, all the postings, and all the people here are using SGI's
in one form or another. I'm on a Linux PC (Mandrake 6.1), with Mesa 3.0
and XForm 0.89.
I cannot make a simple program work with multiple canvases. Either
only one canvas displays (usually the last one drawn to), or neither of
I'm doing something along the lines of:
glXMakeCurrent( fl_get_display(), fl_get_canvas_id( canvas1
fl_get_glcanvas_context( canvas1 ) );
< .. GL CODE HERE .. >
glXSwapBuffers ( fl_get_display(), glXGetCurrentDrawable ( ) );
I use something similar in each Expose callback.. and both callbacks
are called, but only the second one produces a picture. Is this
something I"m doing or a problem with Mesa perhaps? Or maybe glX? I'm
out of ideas.
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