Excluding some physics collisions

Question

I have 3 object all have a collider and rigidbody. A, B and C.

A and C can physically interact

B and C can physically interact

A and B can't physically interact and should be able to go through each other

Is this possible to do? thanks.

Answer 1

Best Answer

Answer by Eric5h5 · Mar 31, 2012 at 06:46 PM

Use layers, or Physics.IgnoreCollision.

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FLASHDENMARK · Mar 31, 2012 at 06:47 PM 0

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28 seconds to late! :(

mustafa · Mar 31, 2012 at 07:52 PM 0

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thanks Physics.IgnoreCollision works

Answer 2

Answer by FLASHDENMARK · Mar 31, 2012 at 06:47 PM

Well, you could use Layer-Based Collision Detection to make some object not collide with objects with a specific layer.

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Answer 3

Answer by Thom Denick · Mar 31, 2012 at 06:47 PM

This is really easy to do via the Layer Collision Matrix which is found in Edit-> Project Settings -> Phyiscs.

Create 3 layers for your A, B, C objects, then set up how they interact via the grid.

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Thom Denick · Mar 31, 2012 at 06:48 PM 1

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Ha ha 58 seconds too late.