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I've implemented a net using Verlet integration and many points connected with constrains; like this demo, but in 3D.

I want to implement collision detection between this net and a ball (like in a soccer game), so the net catches the ball.

I've tried checking for collisions between the ball and net points (treating each like a small sphere), and this somewhat affects the net, but the ball passes through the gaps between points easily.

How should I be approaching this?

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    \$\begingroup\$ the approach using the net points might work, depending on how many points your net is using - if the ball is passing through anyway, either your net is not dense enough or your collision detection is not working properly. A simpler approach however might be to treat the net as a plane (for collision detection) and calculate the point where the ball hits it, where you can then apply a force to move the net \$\endgroup\$ – UnholySheep Oct 21 '14 at 14:36
  • \$\begingroup\$ I'll try that approach soon. \$\endgroup\$ – HankMoody Oct 23 '14 at 7:24

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