Two questions on constraints

[yezide]

Got two questions on constraints:

1) Is there any easy way to disable collision between two bodies that are connected with a constraint? Or do I have to implement a test in the btOverlapFilterCallback?

2) Is there any callback that is called when a constraint limit is reached? For example, I want to play a sound when the hinge constraint reach max or min.

Thanks in advance!

[yezide]

And a third one while I am at it:

3) Having set limits (for hinge) with setLimit (...), how to I turn off limits (so the constraint returns to the state it was when I created it)?

[mattrix]

Got two questions on constraints:

1) Is there any easy way to disable collision between two bodies that are connected with a constraint? Or do I have to implement a test in the btOverlapFilterCallback?

2) Is there any callback that is called when a constraint limit is reached? For example, I want to play a sound when the hinge constraint reach max or min.

Thanks in advance!

Hello!

I'm also new with bullet, but I think I can help you with the first question.
When you add the constraint you do:

Code: Select all

bool disable_collision_between_linked_bodies = true;
dynamicsWorld->addConstraint(pointer_to_your_constraint, disable_collision_between_linked_bodies);

That's all you need as far as I know.

Regards,
M.

[yezide]

Darn, that simple

Thanks for the help!