What is Collider Free Editor?

Collider Free Editor (CFE) is a Unity Editor Extension which allows you to perform Raycasts and Overlap tests inside the Unity Editor without colliders attached to your game objects. This can be extremely handy when working on tools for your game as you sometimes need to perform raycasts and overlap tests but don't want to have colliders attached to all objects in the scene.

Even if you do have colliders attached, you might still need to raycast against meshes and that requires mesh colliders. The problem is that most of the gamne objects will have box colliders attached as most of the times they provide a good enough approximation for collision purposes. With CFE you can cast a ray in the scene and get access to information such as the hit point, hit normal and hit triangle index, all without needing any colliders at all. You can specify the raycast precision and raycast and overlap filters to configure these tests as you see fit.

This documentation will cover the raycast and overlp tests that can be performed using the CFE API.