[ODE] Should trimeshes react to physics?

[Jon Watte (ODE)]

Trimeshes have been around for years, and are stable, as long as you 
don't try colliding them against other trimeshes.

Gravity affects none of the geoms; gravity affects bodies. If you apply 
a trimesh to a body, that trimesh will move with the body (but you might 
get into trimesh/trimesh situations, which wouldn't be very stable nor 
fast).

Cheers,

			/ h+


Keith Wiley wrote:
> I'm trying to understand trimesh roles in ODE.  I realize that,  
> according to the docs, they are new and not fully developed.  I am  
> using one massive trimesh for a nonoverlapping extruded terrain right  
> now.  One thing I have noticed is that the trimesh is unaffect by  
> gravity.  If I create the entire terrain at some height up in the  
> air, it doesn't fall down, it just floats permanently in space, even  
> though other objects are rolling and crashing around on the top  
> surface of the terrain, so it must clearly be enabled due to all the  
> collisions it is experiencing.