[ODE] Creating a TriList heightmap geom

[juhani honkala]

Got tricollider with opcode runnign as well but..

Is it just me or doesn't it sound a bit unoptimal to use
TriCollider for the collisions between standard geoms
and (heightfield)landscape. Would be nice to have a 'heightmap' geom or
something. I'm sure that would
be useful and poised to come quite popular, coz many
ppl are using tricollider for the landscape.

Maybe someone here has done a one already and would like to contribute it to
the community???

Oh.. I have a one question as well.

How does tricollider optimize the trimesh? Can i just
give an enormous chunk of polygons.. like millions that
define a heightmap? Or should I use multiple patches?



thanks.

juhani

----- Original Message -----
From: "Paul Hunkin" <PWHUNK@stpeters.school.nz>
To: <ode@q12.org>
Sent: Monday, May 12, 2003 7:30 PM
Subject: [ODE] Creating a TriList heightmap geom


> Well, I've got the TriList, OpCode and ODE working together, and the
> examples compile and run fine :)
>
> So, now I'm faced with the problem of how to create the Tri-mesh for my
> heightmap. I'm sure there's a really simple solution, but I can't seem
> to find it :/
>
> The TriList build func is:
> dGeomTriListBuild(TriList, Vertices, sizeof(dcVector3), VertexCount,
> Indices, sizeof(int), IndexCount, 3 * sizeof(int));
>
> I have the vertices in correctly (just transferred them from my
> heightmap into a dcVector3 array) but the Indices have me stumped. How
> do I find / generate these? I tried a couple of things, but they
> produced some really weird (and non-working, obviously) results. Failing
> that, does anyone have any links to an example of generating a TriList
> from a heightmap?
>
>
> Thanks :)
>
>
>
> -paul
>
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