I've observed this too for two or three years now. Maya's raw VP performance
has become really good, unless some realtime shaders come into play. But that's
getting a lot better with the new VP 2.0 too.
Yet, I wouldn't dismiss XSI' VP performance as bad though,
I can rotate 10 mio polys quite smoothly on a relatively low-cost GForce 460
with 2 GB of RAM.
It seems like every model I work on lately has ~10Million Triangles. I've
always thought XSI handled large poly counts well and have'nt put much
thought to it. That all changed yesterday after exporting one of our large
models over to Maya. The Maya viewport interaction is buttery smooth with a
very tactile response to viewport navigation. It feels connected like a
Lotus Elise on the bends in Big Sur. I can't believe it. For years XSI had
the upper hand with polycounts but it seems the tables have turned.
I had not realized just how slow it was. It's so bad ( and Maya is so good)
I suspect something must be wrong with my machine or it's not tuned for XSI
but alas I can't find a problem. I've tried a few drivers and fiddled with
the settings but nothing seems to help.
Anybody have any tips to improve XSI viewport performance? Or are we just
behind the performance curve.
Votch Levi
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