Real-Time Physics Simulation Forum

I an new to bullet and do basic test
I use a box and a sphere ,the box is moving from left to right,sphere is not moving
I change the box rigidbody world postion every frame,getWorldTransform().setOrigin()
and call contactTest everyframe，but the callback comes earlier,in fact the box and sphere not collide,just a little gap。

You're probably experiencing the collision margin of some convex-convex shape collisions. There is an old video on YouTube that illustrates margin.

drleviathan wrote: ↑Mon May 30, 2022 3:38 pm You're probably experiencing the collision margin of some convex-convex shape collisions. There is an old video on YouTube that illustrates margin. five nights at freddy's

This video is very useful for me.

Thanks a lot sir, was searching the same information! check buy assignments online if you need any type of help with writing tasks.