inflate + collide

hey, i tried modifying the inflate definition to compute collisions between bubbles...i'm using a interconnection-PLaw system, and...A; it's not working, B; i feel like there should be a better way...what's the standard kangaroo collision method?

i checked out the cradle definition...but it's between single points...

Attachments:

collide-inflate.gh, 49 KB

Replies to This Discussion

Permalink Reply by Daniel Piker on January 27, 2011 at 6:29am

Hi Gabriel,

See this discussion for a little more info on collisions with Kangaroo

http://www.grasshopper3d.com/xn/detail/2985220:Comment:147114

I can see how collision between inflating meshes would be quite a nice thing to have, and maybe there is a simplified approach possible, where points inside are just pushed out towards the closest point on the mesh, similar to how the 1-way Brep collisions work now, and push the points of the face of the mesh being penetrated inwards in reaction. It might be slow though, and it's not clear how this might work to have meshes collide with themselves.

In the meantime maybe there's another approach possible within current capabilities, it depends what you are trying to do ?

Permalink Reply by Filip Mesko on March 21, 2011 at 8:33am

Hi Daniel,

I tried to make a definition that would collide two inflated meshes, but I have no idea how to check for inclusions etc. according to your description above.

Currently, I draw lines between the vertices of each mesh and use those lines as connections for a PLaw component. They attract quite nicely, but they don't collide. I have tried different experiments on cutoff lengths, but nothing else comes to mind.

Any ideas would be greatly appreciated.

Please see enclosed files.

Thanks,

Filip

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