[ODE] Re: Package Comparisons

[John D. Gwinner]

Good comparision, thanks.

You're probably right about the approach.  Friction would be an issue, I
think, I would definitly need friction.

I could probably work on the collision detection in ODE, but the
constraint solvers may be a bit beyond me - however, ithe source is
already in Dynamo, and if legally I can merge the sources, I might be
able to work on that, but I doubt I'll have much time (I'm doing this on
'off hours').

One thing I'm worried about is that the new POVRay has not only CSG, but
also procedural surfaces.  Decomposing this could be a chore.  Still,
for an initial version the primitive's in ODE should be fine.

Watching a few glass sphere's falling down and knocking over some cubes,
with full radiosity and ray tracing would be impressive.

               == John ==


> -----Original Message-----
> From: Erwin Coumans [mailto:erwin.coumans@havok.com] 
> Sent: Wednesday, December 19, 2001 9:28 AM
> To: ode@q12.org
> Subject: [ODE] Re: Package Comparisons
> 
> 
> 
> Hi,
> 
> you can distinguish physics engine in several ways, like 
> real-time versus non-realtime, opensource versus commercial 
> (support level), features etc. As I'm working for Havok I 
> won't make comments on the commercial packages, I do have my 
> private Blender testbed to compare all available real-time engines.
> 
> regarding to dynamo: it has been developed by Bart Barenbrug, 
> Eindhoven University Netherlands, just like Solid collision 
> detection library, but they have not been combined. As far as 
> I know this means there is no proper collision detection in 
> dynamo. Also Dynamo lacks friction support (in the thesis 
> there is a mention how to integrate friction but due to lack 
> of time there is no implementation ;).
> 
> Probably the best approach is to extend ODE with collision 
> detection support, and consider merging the Dynamo 
> functionality to be able to switch between constraint 
> solvers: ode's lcp, lu decomposition,conjugent gradient, 
> singular value decomposition etc.
> 
> kind regards,
> Erwin Coumans
> 
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