You must be using functions from the Physics class. Physics2D calls will not interact with 3D physics.
If you are calling a query like collider.Raycast(... from a collider, then you are using a method that can only hit that single collider.
Make sure you understand this, or instead, use the static method Physics.Raycast that queries all the colliders in the scene.
- Raycasting requires colliders to work. 2D colliders will not by hit by
Physics queries.
You cannot query against raw meshes using Physics functions.
- If you are using a Mesh Collider, be aware that changing the MeshFilter's mesh will not update the Mesh Collider.
- Mesh Colliders are single-sided. Check that you are casting against the front face.
- Mesh Collider Meshes must be marked as read/write under certain circumstances (see limitations), this may only affect builds.
Check the documentation for the function use are using. Many have notes on edge cases where behavior may be undefined or default.
- Raycasts will not detect colliders they originate inside.
- Shape casts will not detect colliders that overlap their starting shape. Consider using overlaps to detect them instead.
- Don't use casts of
0 maxDistance, or zero direction, consider using overlaps instead.
- Shape casts with multiple results will detect colliders they overlap at the start, but will return default values.
RaycastHit distance is zero, point is zero, and normal is the inverse of the ray direction.
- Passing in zero size/radius often produces undefined output.
I am still having problems with my query.
Unity, huh, how?