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Question by Ebil · Feb 13, 2012 at 04:20 PM · meshverticesnormalsplanet

How to edit a mesh from a script

Hello everyone,

I want to edit a mesh from a script. But how do I edit the normals, vertices , scale it... and so on? The mesh is a sphere and I want to create a planet with it.

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Answer by Jessy · Feb 13, 2012 at 04:21 PM

Google "unity mesh".

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avatar image Ebil · Feb 13, 2012 at 04:51 PM 0
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lol you think i didnt googled? I found the script reference. But its not working for me.

 var mesh : $$anonymous$$esh = GetComponent($$anonymous$$eshFilter).mesh;
 var vertices : Vector3[] = mesh.vertices;
 var normals : Vector3[] = mesh.normals;

 for (var i = 0; i < vertices.Length; i++)
     vertices[i] += normals[i] * $$anonymous$$athf.Sin(Time.time);

 mesh.vertices = vertices;

dont work on a plane or on a sphere. They just get invisible and thats all.

avatar image Berenger · Feb 13, 2012 at 05:03 PM 0
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That code works for me, and they don't get invisible. As it sort of scale an objects alongs it's normals (so like a regular scale for a sphere, a translation for the plane) it's going to be bigger than the object-camera distance, and you don't see negative faces, that's why it's invisible. Look what's going on in your scene view.

Jessy : lmgtfy is awesome for that sort of thing ;)

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