How to place a prefab on a mesh vertex

Unity Engine
1

I must be doing something stupid here. I try to instantiate a prefab on the vertex of a mesh. The height (y) looks correct, but the x and z are limited to a very narrow range, so I get a cloud of objects floating in the air and under the (highly sloped) ground.

    MeshFilter meshFilter;
    GameObject prefab;
    Instantiate(prefab, meshFilter.mesh.vertices[10], Quaternion.identity, meshFilter.transform);

I also tried instantiating the object globally and then setting the parent, in case the coordinates weren’t being transformed. The effect was the same.

2

You probably need to account for the scale of the instantiated prefab in the scene.

3

The scale of both the prefab and the mesh is (1,1,1).

4

The vertices are in the local space of the mesh. To get from that to world space, use the meshfilter’s transform’s TransformPoint method.

1 Like
5

That worked. Thanks! No more floating bushes!