In the last few months I have observed a strange behaviour when my projectiles (that are cones (btConeShapeZ) ) collide with spheres. It worked perfectly before but it broke somewhere along the way. I am using revision 2410 currently.
Today I tried different things and I have seen that my cones are "colliding" not with the sphere, but with the axis aligned bounding box of the sphere. Or at least the contact between the sphere and the cone is generated somehow, because the projectile goes through the bounding box as if there were no physical interaction, but the contact is generated as if the sphere were touched by the projectile (and that didn't happen).
I thought it was my fault but it doesn't happen if I use boxes, spheres or cilinders instead of the sphere or the cone. Even more, if I use a multisphere with one sphere instead of the original sphere, everything is fine. So it seems to be just a problem with collisions between spheres and cones or, maybe, contact generation between spheres and cones.
I haven't looked the code in Bullet as I don't know where to start. Any ideas?
Thank you all in advance
