Altering Geometry

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David Russell (drussell++at++vsl.ist.ucf.edu)
Wed, 8 Nov 95 09:24:16 EST

Given that Performer operates best of staic geometry data, has anyone else
tried to alter the geometry of a scene on the fly? I've seen systems that
alter vertices of geosets in order to produce dynamic terrain, fluid, etc.
that work produce relatively fast response. Unfortunately, for my
application, this approach doesn't work. I am required to generate all of
the geosets, etc. for the new geometry each time a change is necessary.

Now that I've rambled on, does anyone have any experience with generating
and swapping new geometry into the Performer tree? I'm mostly interested
in any tricks to help increase the speed of response. We have a GL based
test program which only takes about a second to update where the Performer
based program requires nearly five seconds to change the geometry on the
same machine.

Thanks for reading this far into my ramblings. Hope someone out there can
give me some feedback.

David Russell |
Visual Systems Lab | Static worlds breed
Institute for Simulation and Training | static minds.
|
drussell++at++vsl.ist.ucf.edu | CHANGE YOUR (virtual) WORLD!

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