How do I detect if I am clicking on a meshinstance3d?

[dbat]

You can also make the static body and the collision when you make the mesh. Rays also require the collision shape to detect any hits.

Another approach is more low-level. Start here:

Intersecting/Colliding with an area in PhysicsServer3D: A Mystery

I have found some solutions. I made a short post on my gitlab wiki, which I’ll try to post here too: Introduction When writing a @tool (or plugin) in Godot 4.x that requires detection of what’s in the 3D world (the scene) around you, then you’ll find the docs (right now) a little confusing. I did! It’s easy to find the PhysicsDirectSpaceState3D class (docs), however, what you need is the RenderingServer class (docs). (If you are using PhysicsDirectSpaceState3D then you may be on the wrong pa…

You’d make an AABB “around” your cursor and then use RenderingServer class to find intersection. The problem is that your cursor is not actually in the screen, so I’m not sure how you’ll handle z depth.