How to make a sphere but you can only see the interior and not the exterior?

so I would like to know how can I make a sphere that you can only see the interior of it and not the exterior that looks half when you see it. for example, it is like on some Jojo games and mostly it was used in avatars like on some hats when you look at a left it turns white and if you look at the right it will turn black something like that.

I also have tried doing making a hole inside a sphere and delete the exterior faces but it doesn’t work.

I don’t have any pictures of example sorry if you don’t understand what i meant

Are you trying to say something like a skybox? Where you can see the inside of the sphere?

something like that i think…

ill try to find an example of it. if I can find one

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something like this.

timestamp: 5:15

The easiest way to do this is (as far as I know) is by making a sphere mesh and inverting the normals in a 3D modeling program such as Blender.

If you wish to do it in Blender, insert a sphere by pressing Shift + A, enter edit mode by pressing tab, press Alt + N and then click Flip (make sure all of the vertices are selected before doing this). Once you’ve done that, export it as .obj or .fbx, then import in Roblox Studio.

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Thank you so much for your help. it works pretty well.