the background. This is achieved by doing only a (qf)glFlush at the end of
the frame, doing the inter rendering-frame processing (ie, client frame
processing), glFinish, glXSwapBuffers, then starting the next frame. I've
changed the glFinish call in SCR_UpdateScreen to glFlush and the glFlush
call in GL_EndRendering to glFinish because there's no point in calling
glFinish followed by glFlush. Also, SwapBuffers should always be precedded
by glFinish rather than just glFlush (in Lordhavoc's experience). The
GL_EndRendering at the end of SCR_UpdateScreen got moved to the beginning.