Help planes clipping!

[josemendez]

Hi, we're trying to make a simulation for book pages blown by the wind. We've been using the inter-collision example by obicloth for reference, but it appears that the planes/pages will clip into each other if they're too close, even if their particles aren't touching. I turned on obi particle render in the pic below - when we press play, the planes just sink. Inter-collision only works if the gaps between the planes are huge, but we do need to keep the form of a book. New to unity here, please help! 

Hi there,

Make sure the planes have different phases. See:
http://obi.virtualmethodstudio.com/tutor...sions.html

Since Obi is a particle-based engine, you'd need tiny particles (and very high mesh resolution) to simulate a book using it. Having lots of tiny particles would cause new issues: tunneling, bad performance, etc. Even if you had perfect mesh-mesh contact generation (which is expensive), preventing any tunneling between the pages would be a huge headache, since they're so thin.

Using physics to simulate a book is just not going to work. The enormous amount of intercollisions between the pages and the sheer precision needed to simulate it are simply too much to handle in realtime. Use a different approach (procedural animation, for instance).