Making a floor trap for a 3d game for when my character walks over it something happens.
The character is using a Character Controller, while the trap has a rigid body set to isKinematic and a box collider with IsTrigger set.
For some reason, the box collider does not trigger an OnTriggerEnter collision with the character controller unless the box collider is about 1/2 of the character controller radius inside of the character controller. Meaning, I have to have a very large box collider on the trap, so that I can ensure penetration.
I added a different capsule collider, which matched the shape of the character controller. Now when my player travels over the trap it triggers correctly, but the the character controller collider doesn’t. This however is not a valid solution, as now when something collides, I have 2 collision events rather than 1.
After some research into this, I seem to be noticing this issue:
After a little further digging, it seems that this issue has been around since around 2013…