[ODE] "static" Geom problem

[LR]

Hi,
 
I can give you the way i use: 
 
i have 3 spaces : one contains the static geoms (space 1), another the
dynamic geoms (space2)  and the third contains space 1 and space 2
if space is the static space (witch contains statics geoms) i do not try to
collide:
 
 
if (dGeomIsSpace (o1) || dGeomIsSpace (o2)) 
  {
  dSpaceCollide2 (o1,o2,data,&nearCallback);
  if (dGeomIsSpace (o1)) 
    {
    if((dSpaceID)o1!=StaticSpaceID) dSpaceCollide
((dSpaceID)o1,data,&nearCallback);
    }

  if (dGeomIsSpace (o2)) 
    {
    if((dSpaceID)o2!=StaticSpaceID) dSpaceCollide
((dSpaceID)o2,data,&nearCallback);
    }
  }
else 
  {
  ...
  int n = dCollide (o1,o2,N,(dContactGeom *)
&contacts[0].geom,sizeof(dContact));
  ...
  }


Laurent.

________________________________

De : ode-bounces at q12.org [mailto:ode-bounces at q12.org] De la part de Matthew
Harmon
Envoyé : vendredi 14 avril 2006 00:16
À : ode at q12.org
Objet : [ODE] "static" Geom problem



I’m having some troubles with “static” geoms
 those that are not assigned to
a body. 

 

I’m counting the number of potential collision pairs I get from
dSpaceCollide(), and it seems that if a geom is not assigned to a body it
always generates potential contacts with other similar geoms.  However, if I
assign them to a body, they don’t (unless they get very close, of course.)

 

I’m using a quadtree space, but the same happens for even a simple space.
These are almost all simple box geoms.

 

I tried calling dGeomMove(), just in case these static geoms were all being
put in the root of the quadtree, but that didn’t seem to help.

 

Any thoughts here?