hollow objects, hollow mesh?

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hi, i am creating a hollow sphere which acts like a boundary environment for my game. How do i make that in unity?

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I'm not sure you can. You might try getting at the sphere's mesh and inverting the normals, but probably not worth the trouble. I'd model a sphere (in Blender say), and flip the normals (or vertex order) there so the 'solid' side points inside the sphere's interior surface.

thx not sure i understood all that but thx anyways

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Blender's great for this. There's actually 'make solid' function that will do this for any mesh. Let me know if you want to go the Blender route, will fill you in on that.

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