Hi Andreas,
Andreas Zieringer wrote:
I have a similar problem, same machine booted in windows my scene
renders fast, booted in linux it renders also fast but when I switch to
fullscreen mode or resize the window bigger than about 1024x768 I get
less than 1 fps.
mhm, over here resizing doesn't seem to make a difference. Does this
happen regardless of what data is active? Maybe the larger buffer
triggers the same memory problem ..
I have a number of machines with two different graphics cards in the
quadro fx range (1300 and 3400). The 1300 machine drops to about 7 fps,
so - with its 128 mb - seems faster than the larger 3400, although the
framerate is below what I would expect for that kind of scene - other
renderers produce up to 20 fps. What I've never seen in other renderers
(and in OpenSG) before is the sheer drop from 60+ fps to 1-7 fps with
just a few triangles more/less - this seems awfully like card memory
exhaustion (although I do sort of remember that one of the hypes towards
pci express cards was that bus memory transfers should be fast now ..
hear hear).
I just don't get it, I've been seeing this problem since a couple of
months now (on and off, as I got time to spend) .. before I could load
the exact same dataset and everything was fine and stable at about 20-30
fps, depending on graphics hardware.
Thanks, sorry to be a bother and best regards,
-.jan.-
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