Dynamics collision

Discussions about the use of Realflow
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Joined: Tue Sep 12, 2017 12:11 pm

Dynamics collision

Postby Sunderam » Tue Sep 12, 2017 1:01 pm


I am trying to make a dynamic collision. I created a box(Soft body), a cylindrical pole(Passive rigid body). When I try to colide the box with the pole, it colides fine when velocity of the box is 10. But when I increase the velocity to 20, box pass through the pole. Can anyone give me information why this happens.

In scene I created there are 4 objects, a box, a cylinder, a box floor, a gravity daemon.

I'm using Realflow 10 trial.

Any help would be appreciated. Thanks.

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Joined: Fri Oct 27, 2006 10:36 am

Re: Dynamics collision

Postby tsn » Tue Sep 12, 2017 1:32 pm

When objects are faster you need higher precision and precision is controlled through time steps (in RF they're called substeps). The rigid and soft body solver has its own substeps settings:

Click on the small triangle next to the "Simulate" button and choose "Options" from the context menu. There go to "Caronte" and increase "Quality". It can also be helpful to make the ground collision object thicker.

If you want to know more about time steps, quality, and collision detection just take a look at the RealFlow blog: http://bit.ly/2jlRIW3


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