changing group/mask of rigidbody

[v01d]

Hi,
I know it is possible to set the group/mask bits when adding a body to the world, but is it possible to set it afterwards?
I ask because I'm using btBulletWorldImporter and the bodies are added without these values. I would like to set them after deserializing.

Thanks

[xexuxjy]

You should be able to. You'll actually be updating the values on the BroadphaseHandle, so it will depend on the underlying implementation , but I think the standard Broadphases allow you to change it.

[Erwin Coumans]

You can modify the world importer to set the flags, it is all open source and you can derive methods.

If you want to change the flags/mask or other properties of a rigid body, it is best to remove it from the world, make the change, and re-insert it.

[v01d]

Hi,
thanks for responding. I know it is open source, but I prefer to reuse than reimplement whole methods just to change some parameters. Actually, I use my own importer, but I reuse the "convert*" methods that read the data struct and add the object to the world.

So, there actually is a way to change these values. But, is it really necessary to re-add the body for updates?

Thanks