[ODE] collion body vs geom

[samuel girardin]

That was I thinking, . It doesn't work with the 3d engine I use. So I made a
test with the original test_buggy.cpp, and it doesn't work too...I'm sure I
missed something... For info, here is what I'm trying to do. A car(clone of
the ode buggy), ground and wall. I try to disable collisions betwen  wheels
and wall. My wheels are little outside of  the car body. So there are some
very strong collision effect if ones of them collide to a wall !  I could
change my wheels pos, but I don't want do that. And I'd like to understand
the problem I have.
 Here is the code for the test_buggy.cpp I change in near call back , I was
thinking it disables collision detection for one wheel  for exemple...
static void nearCallBack.... {
dBodyID b1 = dGeomGetBody(o1);
dBodyID b2 = dGeomGetBody(o2);
if(b1==body[2] && o2==ground ) return ;
if(o1==ground && b2==body[2] ) return ;

const int N = 10;
dContact contact[N];
.....
...
}

I try that, and nothing change... The three wheels collide.

Any idea Martin  ?

Sam





> That should work.  Trace through it (or use printfs) to see what happens
> when your body touches the wall.
>
> - Martin
>
> samuel girardin wrote:
>