Cannot add Mesh via script

Question

Hi there! I want to add a Mesh to Mesh Collider of an object. I'm trying the code below:

         GameObject headd = Resources.Load("Art/Prefabs/head") as GameObject;
         headd.name = "heaed";
         GameObject head = Instantiate(headd);
         head.transform.rotation = Quaternion.Euler(0.0f, 180.0f, 0.0f);
         Destroy(head.GetComponent<SphereCollider>());
         head.AddComponent<MeshRenderer>();
         head.AddComponent<MeshCollider>();
         head.GetComponent<MeshRenderer>().material = AssetDatabase.GetBuiltinExtraResource<Material>("Default-Diffuse.mat");
         head.GetComponent<MeshCollider>().sharedMesh = Resources.Load<GameObject>("Art/Prefabs/head").GetComponent<Mesh>();
         head.name = "Model";
         head.transform.SetParent(headGO.transform);

When I run the scene, the Mesh Collider's mesh is still shown as "None" like this. alt text

That part of code:

 Resources.Load<GameObject>("Art/Prefabs/head").GetComponent<Mesh>();

returns null. I could not understand why it behaves like this. I have to get Mesh from the .obj file which located in that location.

Also, this is the folder hierarchy of the project which I want to load object and objects mesh from... alt text

Thanks....

Answer 1

Best Answer

Answer by tonaros1 · Sep 17, 2021 at 12:17 PM

Hi, @kiryu_kazuma123.

The answer is very simple.

In order to get a mesh from an .obj file, you need to refer to its child object and request the MeshFilter component from it.

For example like this:

 var meshFilter = Resources.Load<GameObject>("Art/Prefabs/head").GetComponentInChildren<MeshFilter>();
 GetComponent<MeshCollider>().sharedMesh = meshFilter.sharedMesh;

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kiryu_kazuma123 · Sep 17, 2021 at 01:30 PM 0

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That worked! Thank you so much...

Cannot add Mesh via script

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