(I thought I had posted about this a few months back, but I can't
remember getting a reply nor could find the post now that I searched for
it. )
Hi,
I noticed that RenderAction always calls glFinish(), on each frame, in
order to collect profiling data. While that is ok, I would really avoid
doing that (i.e. waiting for all gl-commands to finish before preparing
the next frame). (I've also read that it is not recommended by
hw-manufacturers, since it destroys a lot of parallellism between cpu
and gpu, which makes good sense.)
I would expect it to not matter much for GPU-limited apps, but if you're
pushing the system and want to run with as few threads as possible, then
it could be hampering performance seriously.
I have compiled my own version of the OpenSG libs with that call
commented out, but I just wanted to bring this to attention in case
there are others with similar problems.
REgards,
/Marcus
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