MeshCollider components on the map tiles?

[binakot]

I use raycasting to place some objects on the 3d map with a correct height. But atm there is no MeshCollider component on the map tiles. That's why raycasting does not work.

If I add MeshCollider in Unity editor when project is playing - everything works. Unity assign the correct mesh in runtime from editor.

But when I try to add MeshCollider from code, MeshCollider component misses the mesh reference.

This code doesn't help.

[RequireComponent(typeof(MeshRenderer), typeof(MeshFilter), typeof(MeshCollider))]
public class UnityTile : MonoBehaviour, INotifyPropertyChanged
{
    <...>
    void Start()
    {
        GetComponent<MeshCollider>().sharedMesh = MeshFilter.mesh;
    }
}

In earlier SDK versions raycasting worked out of the box. Now I'm using v0.5.1-beta. How can I do it now?
Thanks.
Cheers.

[david-rhodes]

@binakot There are some commented lines in TerrainFactory.cs that add MeshColliders to the tile game objects. Just uncomment them.

tile.gameObject.AddComponent<MeshCollider>();

Querying tile height is also possible from the QueryHeightData method in UnityTile.

[binakot]

Great thanks! I broke my brain last night. Probably you should to add a check box on terrain factory with "Add mesh colliders" or smth like that? Thanks again. Cheers!

[brnkhy]

@binakot Probably you should to add a check box on terrain factory with "Add mesh colliders" or smth like that?
I have no idea how I couldn't thought of that before. Doing that right away, thanks!

[binakot]

Thanks, guys. The issue may be closed. 🍪

[brnkhy]

@binakot we can keep it till we merge this in; #57
I added both collider and layer settings, will merge it after some testing.

[binakot]

@brnkhy Okay-okay. I was not going to do it. Just wanted to say that for my project the problem is solved. 😎

[david-rhodes]

Fixed! #57

[mtbrobotanist]

hey guys i know this is issue is closed but regarding the QueryHeightData() method, what units does it return? I can't seem to find any info

[david-rhodes]

@mtbrobotanist Units are in meters. The returned value will be scaled based on the height modifier of the terrain factory, though.

[dhruvmodhapp]

I have added MeshCollider on land-use. But now I have an issue is Mesh Collider 'looks inside hollow'. Due to inside mesh collider is hollow, collision not happening inside. How to make mesh collider solid?