# Gap deformable body contacts

**URL:** <https://forums.developer.nvidia.com/t/gap-deformable-body-contacts/197116>\
**Category:** Isaac Sim\
**Tags:** soft-body, contact\
**Created:** [December 4, 2021, 4:41pm UTC](https://forums.developer.nvidia.com/t/gap-deformable-body-contacts/197116 "2021-12-04T16:41:47Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Tom\_VDM](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@Tom\_VDM](https://forums.developer.nvidia.com/u/Tom_VDM)\
**Post date:** [December 4, 2021, 4:41pm UTC](https://forums.developer.nvidia.com/t/gap-deformable-body-contacts/197116/1 "2021-12-04T16:41:47Z")

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I encounter strange behaviour when using deformable bodies in Isaac Sim. When simulating deformable bodies, they never seem to touch other objects in the scene. This can clearly be seen in the picture below. Is there a reason for this and is it possible to avoid this or at least diminish the effect?

 ![Screenshot from 2021-12-04 17-38-28](https://global.discourse-cdn.com/nvidia/original/3X/9/8/98f3b8c14e9dd379536fe22ca57b45716558ebe1.png)

Thanks in advance.

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**Author:** ![Hammad\_M](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/hammad_m/32/14047_2.png) [@Hammad\_M](https://forums.developer.nvidia.com/u/Hammad_M)\
**Post date:** [December 6, 2021, 5:57pm UTC](https://forums.developer.nvidia.com/t/gap-deformable-body-contacts/197116/2 "2021-12-06T17:57:41Z")

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@Tom_VDM can you try reducing the collision and rest offset parameters?

[https://docs.omniverse.nvidia.com/app\_create/prod\_extensions/ext\_physics.html#collisionparameters](https://docs.omniverse.nvidia.com/app_create/prod_extensions/ext_physics.html#collisionparameters)

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**Author:** ![Tom\_VDM](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@Tom\_VDM](https://forums.developer.nvidia.com/u/Tom_VDM)\
**Post date:** [December 6, 2021, 7:02pm UTC](https://forums.developer.nvidia.com/t/gap-deformable-body-contacts/197116/3 "2021-12-06T19:02:25Z")

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That doest the trick. Thank you very much.

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**Author:** ![system](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/system/32/68080_2.png) [@system](https://forums.developer.nvidia.com/u/system)\
**Post date:** [December 20, 2021, 7:03pm UTC](https://forums.developer.nvidia.com/t/gap-deformable-body-contacts/197116/4 "2021-12-20T19:03:00Z")

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Closed on December 20, 2021, 7:03pm UTC

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