OpenInventor loader for Performer 2.0

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Thomas Hudson (hudson++at++cs.unc.edu)
Thu, 11 Jan 1996 19:25:19 -0500 (EST)


We're still using the beta, but I assume this behavior persists in
production Performer 2.0:

  I'm taking advantage of the nice new Inventor loder in Perf 2.0,
reading in a scene graph consisting of some stock classes and other
classes that we've created by inheritance. Even where these new classes
are perfectly renderable (e.g. a NewCube class that inherits publically
from cube and contains all the same data, plus some additional that isn't
necessary for rendering), there doesn't seem to be enough data in the
output file for Performer to recognize this fact, and so all our new
classes are treated as empty subgraphs.
  Am I correct in assuming that I'll have to get the source code for
the file loader and add capabilities to handle my own classes? Does
this also mean that if we distribute our code anybody who writes a
new Inventor class will also have to write the Performer conversion
routines?

Thanks for any assistance.

Tom Hudson
Walkthough Group, University of North Carolina at Chapel Hill
// hudson++at++cs.unc.edu


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