Hello to all osg users,
I would like to render about 8 to 10 thousands of spheres in order to
simulate the movement of a pile of rocks pushed by a bulldozer. Each
sphere will have a maximum of 20-40 vertices and will be drawn in
TRIANGLE_STRIP mode.
The results of the tests I did with spheres simplified down to 24
vertices, are dismal. I could go to maximum of 1600 spheres at 30 frames
per second.
At the same time without OSG, just using ODE's accessory library
"drawstaff", I can simulate about 8500 spheres at 30 frames per second.
I did use OSG profiler, and the great part of a frame, about 20% to 30%
is occupied by culling. Then did the same test with the sprite-points
instead of spheres and the performance gain is about 30%.
I have looked at osgimpostor example, but it seems to me it's not
applicable in my case.
I would like to poll any suggestion of strategy and methods to use.
Looking forward for your news I'd like to thanks each of you a lot.
MZ
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