[opensource-dev] Convexdecomposition for open source devs

Dahlia Trimble dahliatrimble at gmail.com
Thu Dec 30 13:15:11 PST 2010


There is an implementation of bullet in OpenSimulator but it's not as well
tested as ODE, which is the dominant engine in use. Both engines are
currently using trimesh colliders for complex prims, sculpties, and meshes
and the version of ODE included with OpenSimulator does not support convex
hull colliders.
On Dec 30, 2010 8:10 AM, "Dave Booth" <dave at meadowlakearts.com> wrote:
> On 12/30/2010 08:03, WolfPup Lowenhar wrote:
>>
>> I have recently had a conversation with someone @ LL that has said
>> they would be willing to help develop and OS version of
>> llconvexdecompisition. I even I even discussed which ones they thought
>> was good but they have not had the time to look at the open source
>> version in a technical way. So what I thought of is start a thread
>> here that would allow the OS community both vote and comment on the OS
>> versions with the one most generally liked being used and converted to
>> be compatible to the LL mesh viewer.
>>
>> Versions that I have found(to place your vote on this put an x next it.):
>>
>> Bullet Physics Library(just the convexdecomp section):
>>
>> Web site : http://code.google.com/p/bullet/
>>
>> Votes>
>>
>>
>> John Ratcliff's <http://codesuppository.blogspot.com/>:
>>
>>
>> Web Site :
>>
http://codesuppository.blogspot.com/2009/11/convex-decomposition-library-now.html
>>
>>
>> Votes>
>>
>>
>> Comments for either system:
>>
>>
>
> I cant exactly speak to the quality of either but the fact that Bullet
> is the physics implementation used by opensim should IMHO give that
> choice a bit of a leg up. The fact that the library is already in use as
> the phys engine on the most prevalent opensource server makes its use
> for decomp in an opensource viewer rational, just as the use of havok
> decomp in the LL-compiled viewer made sense since that physics library
> was already present in-house.
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