Bug Superweird glitch on Ubuntu.

So I have two Ubuntu machines. One has many different libraries installed (dev machine) and one is "clean" - minimum libraries installed (test machine). I am rendering a cube, which I've built myself from sample data which I put into a new Mesh object. The only thing out of the ordinary here is the fact that both indices and vertices are stored in unmanaged memory and are set to a Mesh object via:

Code (CSharp):

1. newMesh.SetIndexBufferParams(indices.Length, IndexFormat.UInt32);
2. newMesh.SetIndexBufferData(indices, 0, 0, indices.Length, MeshUpdateFlags.DontValidateIndices);
3.  
4.  
5. newMesh.SetVertexBufferData(vertices, 0, 0, vertices.Length, stream: 0,
6.     MeshUpdateFlags.DontValidateIndices);
7. newMesh.SetVertexBufferData(data: normals, 0, 0, normals.Length, stream: 2,
8.     MeshUpdateFlags.DontValidateIndices);
9. newMesh.SetVertexBufferData(data: uvs, 0, 0, uvs.Length,
10.     stream: 1, MeshUpdateFlags.DontValidateIndices);

Here is how it looks:


This was dev machine. The cube renders perfectly fine there. However, when I try to launch the same app (built on the dev Ubuntu machine) on the Ubuntu test machine, I get this:


I have absolutely no clue how could this happen. Vertices and indices are equal in both cases (I read them directly from NativeArray-s befor assigning them to newMesh object) and this situation frankly blows my mind.

Would appreciate any comment, any suggestion - I am completely out of ideas...

 

Both machines have the same Ubuntu version:

 

I doubt this has anything to do with libraries installed on the machine.

This is just a wild guess but this very much look like an undefined behavior to me. Like a memory corruption or an unspecified layout. You're not showing your entire code though so it's hard to tell.

 

Doesn't look equal to me



And since positions are consistently wrong for all 3 triangles connecting in the same corner, I assume that your problem has already happened before filling vertices array.

 

Yeah, another case of criminal inattentiveness) Thanks guys!