Unity OnMouseEnter() or OnMouseOver() not working

Question

I want to make an Inventory System in Unity, so I tried to follow this tutorial, but the functions OnMouseEnter and OnMouseOver are not working.

I tried everything like 3d colliders with z-value of 100, with trigger and not trigger, and also I checked if the Physics.queriesHitTriggers is true, but nothing works. Do you have any easy tips?

Not with raycasting... I'm quite new and don't understand this.

Answer 1

• Try adding a box collider or box collider 2d

• Try adding an rigidbody besides the collider and you can do it kinematic

• Try adding add a EventSystem if you are using canvas ui

• And verify that it does not have an object like a canvas blocking the camera raycast.

good luck.