Is it possible to highlight an object (sprite) without using a collider?

Questions & Answers
1

Let’s say there’s a tree (2D sprite in a 3D environment) that’s constantly swaying and have different states (basically different sizes). How would you make it highlighted depending on its sprite?

I have a highlight function, and I tried both OnMouseEnter and IPointer interfaces (old and new systems), but it seems like they both require collider, which would be a pain to do, considering the animation of an object.

I’ve seen it done in other engine, can it be done in Unity somehow? Doesn’t matter if it’s old or new system.

2

In Unity, highlighting an object typically requires colliders for interaction. Alternatives like raycasting, custom shaders, bounding box checks, or simple custom colliders can be used to achieve highlighting without relying on colliders.