Seams in colliders.

Unity Engine
1

I have a scene where I spawn basically street pieces (basically planes) after each other the further I go. Each of them have a box collider to keep the rigidbody player on not falling through the ground. Now if my player with a capsule collider goes fast enough he will sometimes collide and jump at the seams where the road colliders meet each other. I thought I might fix it by making the players collider a box but then it just gets stuck in the seams.

I tried to google about the issue and it seems that I’m not the only one but there weren’t any good answers. I should be able to fix it in this project by just removing the individual colliders and make a huge one because of a looping nature of the game I know the position and length of the whole street at all times but surely if I continue programming there will be projects where I meet this problem again. I’m having a hard time believing that there isn’t a general fix for this out there.

I’d really like to use the rigidbody physics in my project and not try to code my own.

Featherstone's solver for articulations
2

Use planes (flat mesh colliders) instead of box colliders. The character is colliding with the vertical plane of the boxes. Removing these vertical planes resolves the problem.

3

Try decreasing the Default Contact Offset in Edit/Project Settings/Physics

Changing it from 0.01 to 0.0001 worked for me

Source

4

Don’t change the contact offset if you want stable collision detection for polygons. It’s there for a reason and should only be changed if you understand the impact of it. Reducing it to the absolute minimum isn’t a fix. You will not remove these kinds of ghost collisions, you’ll only reduce them.

Cross-post: [Solved] Character gets stuck in floor