Tom York wrote:
> A lot of older formats would have been dealing with very simple scenes (for an
> example of a format that time has really left behind, look at .3DS). I guess
> the use case for a lot of those formats was to hold a single model rather than
> a scene. You want a modern interchange format; Collada springs to mind.

Thanks.  So far I've been too busy to have a chance to do anything more 
than light browsing - I haven't really gone and done my homework fully 
yet.

That said, are it seems like back then there'd be even more concerned 
about efficiency.  E.g. table legs.  I guess I should look into scene 
formats too. :-) I didn't know there was a difference, but I also notice 
.wrl versus .vrml.


Charles

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Tom York wrote:
> Collada springs to mind.

Woohoo! you're right. It's there. 
http://www.collada.org/mediawiki/index.php/COLLADA_FAQ

First I saw:

"Transform hierarchy (rotation, translation, shear, scale, matrix)"

which was a good clue that instantiation really be there, and then I saw:

"Instancing"

But why haven't I heard of this Collada before?  Is it because it's XML 
and the fact that (around here anyway) there seems to be a common 
aversion to XML?

Charles

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