Can a terrain tree detect OnMouseDown?

Scene & World Building Terrain
1

Hi. I add a capsule collider and a script to my tree prefab, and import it as a Terrain tree , but, while the capsule collider works, the tree won’t respond to an OnMouseDown. Are scripts not attachable to terrain trees?

2

Odd. What is your code ?

3

var objName = “arbor palma”;

function OnMouseDown () {
if (objName == “arbor palma”) print(“The tree received a mouseDown”);
}

The prefab instantiated as a separate object works fine in the scene but not as a Terrain tree as part of the terrain.

4

I don’t think the tree can be made to receive the OnMouseDown event. However, you may be able to detect the click using a raycast from the camera (see this thread for an example).

5

Thanks Andeeee. I already do raycast for objects in the scene and I see everything with a collider except those Terrain trees with capsule colliders from my prefab. Terrain trees don’t respond to user-instigated raycasts either, it seems.

6

The terrain system treats them “special”, they are not objects in your scene like the other stuff.

It is easy to get the tree that corresponds to a particular x/y/z coordinate (actually, x/y). The raycasting will be tricky, however. It depends on your specific setup, if you have a fixed view, you could easily calculate it from the point on the terrain that you click, as the terrain does receive raycasts.

7

Thanks for confirming that .Tom.

Oh. Great. How do you exactly? Terrain.terrainData…?

Not so easily surely since, unless you click the exact base point of a tree, any click ON a tree will pass through to an x,y point on the terrain behind it, or miss the terrain altogether. Unless that’s wrong?