Excluding some physics collisions

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.

asked Mar 31 '12 at 06:01 PM

mustafa
17 ● 3 ● 3 ● 5

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3 answers:

Use layers, or Physics.IgnoreCollision.

answered Mar 31 '12 at 06:46 PM

Eric5h5
80.1k ● 41 ● 132 ● 519

28 seconds to late! :(

Mar 31 '12 at 06:47 PM OrangeLightning

thanks Physics.IgnoreCollision works

Mar 31 '12 at 07:52 PM mustafa

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

answered Mar 31 '12 at 06:47 PM

OrangeLightning
5.3k ● 47 ● 57 ● 111

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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.

answered Mar 31 '12 at 06:47 PM

Thom Denick
1.9k ● 13 ● 20 ● 38

Ha ha 58 seconds too late.

Mar 31 '12 at 06:48 PM Thom Denick

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asked: Mar 31 '12 at 06:01 PM

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Last Updated: Mar 31 '12 at 07:52 PM

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