Real-Time Physics Simulation Forum

Re: btStridingMeshInterface TriStrip & TriList

2008-08-27T18:16:49+00:00

The btStridingMeshInterface supports both triangle arrays and triangle strips, you just have to adjust the index striding.

If you want to use index arrays, you can use an index array like this: ABC-BCD-CDE-DEF with index striding 3*sizeof(integer), giving you 4 triangles ABC,BCD,CDE,DEF.
If you want to use index strips, you can use an index array ABCDEF, and use index striding 1*sizeof(integer), giving you the same 4 triangles.

Hope this helps,
Erwin

Statistics: Posted by Erwin Coumans — Wed Aug 27, 2008 6:16 pm

Re: btStridingMeshInterface TriStrip & TriList

2008-08-27T18:03:31+00:00

It actually assumes TriList. Three indices per triangle.

Statistics: Posted by reltham — Wed Aug 27, 2008 6:03 pm

Re: btStridingMeshInterface TriStrip & TriList

2008-08-27T15:37:50+00:00

It assumes that indicies are in TriStrip topology. My index buffer is TriList.

Statistics: Posted by baltic — Wed Aug 27, 2008 3:37 pm

Re: btStridingMeshInterface TriStrip & TriList

2008-08-27T06:36:49+00:00

btStridingMeshInterface::InternalProcessAllTriangles supports only TriStrips for now, but i've got TriList. i've made a quick hack for myself, but would it be better to include ability to handle TriList, TriStrip, and, maybe, TriFan to that interface? I could do that, if you don't have time.

It uses indicies to access vertices, so you can use any topology you want.

Statistics: Posted by jezek2 — Wed Aug 27, 2008 6:36 am

btStridingMeshInterface TriStrip & TriList

2008-08-27T02:52:33+00:00

btStridingMeshInterface::InternalProcessAllTriangles supports only TriStrips for now, but i've got TriList. i've made a quick hack for myself, but would it be better to include ability to handle TriList, TriStrip, and, maybe, TriFan to that interface? I could do that, if you don't have time.

Statistics: Posted by baltic — Wed Aug 27, 2008 2:52 am