Sphere collider but hollow inside

user_13831157 0
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I want the sphere 2 to be hollow inside, so that the sphere 1 can proceed physics inside. enter image description here

But I don't know which collider to use.

enter image description here

unity3d collision-detection collision
2 Answers

you could create a Sphere in a 3D modelling software and invert the normals so that they face inside the sphere. in unity place the sphere with the inverted normals as a child to your hollow sphere. this will represent now the inner side of your hollow sphere. remove the meshrenderer and add a meshcollider to the sphere with the inverted normals. now you can place any object with a rigidbody component attached to it inside and it will collide with the inner side of your sphere.

sphere with innerside to collide with

user_195458630

Just reverse Normals and use MeshCollider to fix problem.

enter image description here

user_57402430
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