Hello everyone!
I am using OpenSG 1.8 release in a cluster environment under winXP 32/64 bit
or Seven 64 bit.
The machines use nVidia Quadro graphic cards (Quadro FX 4600), and I also
use HP laptops with Quadro FX 1500M and Quadro FX 2800M
When I update my graphic driver of my workstations, I notice some strange
behaviour:
- stereoscopy do not work well anymore (it seems that it works "in reverse"
to normal)
- particle systems / billboards now slow down the frame rate when updating
camera position and only when using a cluster configuration
(MultiDisplayWindow). FPS drops from 20 to 5... I know that there should be
a little drop in framerate (due to viewer quads calculus) when updating the
billboards, but with the old drivers the drop wasn't so much big!
If I use a very old nVidia driver release (97.77 WinXP 32 bit) these issues
do not happen, and if I install a new driver release (I tried more than one,
obviously) these oddness happen again.
For Win7 machines I cannot revert to such old drivers, because they do not
exist...
Could it be some OpenSG error with OpenGL new versions?
Has anyone noticed this behaviour, or try it on his machines?
Thank you very much
Christian Bar
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