[ODE] Instanced Trimesh (SVN #1076)

[Michael Molkenthin]

thank you, David.

My code already is making heavily usage of it. Till now i had to have 
reproduce the modifications on each downloaded update again.

cheers,
Michael

On Wed, 13 Sep 2006, David Walters wrote:

> I've just made a checkin in response to feature request 1526353,
> submitted by Michael Molkenthin back in July.
>
> The trimesh data used to hold its last transform for use in collision
> in approximating triangle velocities and generally enhancing
> collision. The storage of this in the shape data (dTriMeshData)
> prevented using multiple instances of moving trimeshes. To fix this
> the last transform is now stored in the dxTriMesh geom struct, i.e. on
> a per geom instance basis.
>
> To convert code from the old way to the new you need to make the
> following change:
>
> dGeomTriMeshDataSet( dTriMeshDataID, TRIMESH_LAST_TRANSFORMATION, dMatrix4 )
>
> becomes:
>
> dGeomTriMeshSetLastTransform( dGeomID, dMatrix4 )
>
>
> and
>
> dGeomTriMeshDataGet( dTriMeshDataID, TRIMESH_LAST_TRANSFORMATION )
>
> becomes:
>
> dGeomTriMeshGetLastTransform( dGeomID )
>
>
>
> If anyone finds any problems with this then please let me know. Some
> of the casts might make GCC complain, I don't know - I've tested with
> VS2005 and test_moving_trimesh works fine.
>
> Regards,
> Dave
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