Two physics questions

[xavram]

Tried finding these on the forums but no dice.  So here goes...

1.  Physics.TestCollision :  this works as expected, if the two body ids are meshes...but if one of the Ids is from Physics.CreateStaticTerrainBody, then this method never returns true.  But, I can see the mesh I'm testing hitting the landscape and bouncing along.

2.  Physics.SetMaterialInteractionEvents : as I understand from the Newton website, this should allow you to set an event to fire (for example, play a sound) if two materials interact.  But how do you do this?  I don't see anything in the method that supports, If collision happens, trigger this method.

[xavram]

wow, nothing...

[pagebt]

Check out this post in the bugs forum, it looks like there may be a problem with the returned body indexes.

http://www.truevision3d.com/forums/bugs/physics_testcollision_doesnt_check_terrain-t19782.0.html

I hope this helps.

[MiloDC]

2.  Physics.SetMaterialInteractionEvents : as I understand from the Newton website, this should allow you to set an event to fire (for example, play a sound) if two materials interact.  But how do you do this?  I don't see anything in the method that supports, If collision happens, trigger this method.

If you TVPhysics.SetMaterialInteractionEvents on physics "materials," then their collision will register as an event to be polled.

Then, you simply:

Code: (C#)

int eventCount = TVPhysics.PollEvents();
for (int i = 0; i < eventCount; ++i) {
TV_EVENT_PHYSICSCOLLISION pColl = TVPhysics.GetEventCollisionDesc(i);
[... do something with pColl...]
}