[Bug 2398] OpenGL is only used on top level windows so child windows get overdrawn

http://bugs.winehq.org/show_bug.cgi?id=2398

--- Comment #192 from Roderick Colenbrander   2007-10-03 06:41:28 ---
As of today there is child window rendering support in Wine git. There are two
backends one which uses the X Composite extension. It requires video drivers
with support for redirected GL windows. At the moment this is only the Nvidia
drivers but other drivers are adding support. I believe the i915tex branch has
support for it already. (It is needed to support rendering of lets say glxgears
on a compiz cube)

The other backend uses xpixmaps. They can be slow depending on the GL
implementation but it is better than nothing. Nvidia accelerates them though as
for composite more drivers will accelerate those soon.

For now I'll leave the bug opened.