[cad-linux] Re: GraphiteOne Q&A
- From: Andrew Lowe <agl@xxxxxxxxxx>
- To: cad-linux@xxxxxxxxxxxxx
- Date: Fri, 13 Feb 2004 09:06:54 +1100
phrostie wrote:
>>OpenCascade is quite complex. It does not only provide data structures for
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> one of the reasons that i was starting with openinventor/coin3d was that it is
> well documented(lots of books on it). are there any text book on opencascade
> that you could recomend?
But they, OpenCascade & Coin3d, are basically two totally different
things. OpenCascade is a solids modelling kernel that just happens to
have some visualisation stuff tacked onto the back of it whilst Coin3d
is a high performance scencegraph based visualisation system suitable
for doing things such as tank and flight simulators. I can remember
seeing something on the OpenCascade, OC, forums about visualisation
speed and OC not being the best in that respect. Someone wrote some
benchmarks comparing OC with another library and a hand coded "best
case" setup and OC lagged quite a bit, something like 1/10th of the
triangles throughput of the hand coded stuff. What is needed is
basically a merging of these two, OC & Coin, systems.
In terms of books, as far as I know, there is nothing. Consulting and
training is how Matra make money off of OC hence I wouldn't expect there
to be something that would cut into this. Any recommendations on the
Coin books? I've just had a look on their website and there is the stuff
on the Documentation page, any comments on these and any others?
Regards,
Andrew
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