Combining collision flag

[floorinthebathroom]

is it possible to combine two collision flags in one object?, for e.g.

Code: Select all

mBody->setCollisionFlags(mBody->getCollisionFlags() | btCollisionObject::CF_CUSTOM_MATERIAL_CALLBACK | btCollisionObject::CF_KINEMATIC_OBJECT);

but when I do so, it seems only Material Callback take effect, I want to have a kinematic object but also have contact callback capabilities, I know that the easiest way is that you define a material callback on an opposing object, but in this case, I would like to combine it with kinematic object, please help

thank you

[drleviathan]

Combining those two flags should work fine, however if you're changing the MotionType from STATIC to KINEMATIC then you need to first remove the body from the World and re-add it. You can't change between those two MotionTypes on the fly because the bodies live on distinct internal lists inside the btDiscreteDynamicsWorld (which I assume you are using). I believe it OK to switch between DYNAMIC and KINEMATIC on the fly.

[floorinthebathroom]

Thank you very much drleviathan. this is very helpful