Buldging Line

[adamtovey]

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[adamtovey]

Hello Again, wonder if any wizz-kids out their can help.

I have a circle which is moving around inside a box, hitting the sides like a pin ball inside. When the circle hits the sides, i want sides to bulge out when contact is made from the circle, but only bulge on the area where the circle hits, not the whole side. Then return back to normal?

Can anyone suggest how to do this????