RE: [Algorithms] FW: [CsMain] Scene Graphs

[Ko, M. <MAN...@ca...>]

Yes - and of coz read the classic Performer paper. I believe it is Siggraph
96 by Ruelfe and Hellman.

-----Original Message-----
From: Graham S. Rhodes [mailto:gr...@se...]
Sent: Tuesday, September 05, 2000 7:14 AM
To: gda...@li...
Subject: RE: [Algorithms] FW: [CsMain] Scene Graphs


At SIGGRAPH 1999 there was a paper/panel session called "Scene Graphs: Wired
or Tired" to discuss this, although not necessarily from a game development
standpoint.

Here are a couple of links that should give you part of the content of that
presentation (if you don't have the SIGGRAPH proceedings already):

http://www.intrinsic.com/technology/presentations.htm
http://www.cs.brown.edu/research/graphics/research/siggraph99/scenegraph/

Graham Rhodes

> -----Original Message-----
> From: gda...@li...
> [mailto:gda...@li...]On Behalf Of Aaron
> Drew
> Sent: Saturday, September 02, 2000 7:56 PM
> To: gda...@li...
> Subject: [Algorithms] FW: [CsMain] Scene Graphs
>
>
> I've read many discussions on this list as to the pro's and con's
> of various
> solutions to storing, rendering and processing 3D objects but the
> scene-graph hasn't really made much discussion since I've been subscribed.
>
> I can't seem to find much on the web in regards to their usefulness apart
> from a few papers on VRML and Java3D.
>
> I'm having trouble seeing how the added cost of unnecessary traversal of
> nodes and the memory overheads of parent/child links in a scene would be
> worth the added effort but I'm curious as to the thoughts of the many
> experienced developers on this list.
>
> Do scene-graphs pay off?
>
> If so, how?
>
> Managing vertex buffers, textures, multiple instances of objects (with
> shared vertex data), etc can get rather clumsy without a consistant system
> yet everything I've read about scene-graphs suggests that they are simply
> traversed and the objects in them rendered. How would I represent (say) an
> octree implementation within a construct like
> this?
>
> - Aaron
>
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