cloth disable collision per point

[WhyGee]

Hi,

I was wondering if it's possible to disable collisions on a per point level?

Thanks

YG

[Atom]

Sure, instead of using direct point numbers in your constraint just reference a group name. Then you can animate the group contents via a bounding box to include or remove points when you need to. It works the same way with a collision object too. Use a group, followed up with a Delete, to define what part of the object is to be a collider. You will need to make sure the collision object is treated as deforming geometry in this case.

Edited June 10, 2017 by Atom

[WhyGee]

Hi Atom, 

Not sure I understand what you mean, but maybe I wasn't clear. 

Imagine a table cloth falling onto a table top. I'd like to be able to have half of the cloth collide with the table while the other will pass through it. I want it to be controllable on the cloth and not delete part of the collider itself if that's what you meant?

Thanks!

YG

[adrianr]

I'm not sure about per point collisions, but could you not just make a collision object the size of half your table, sim with it, then render/display with the full table? It will look like it collides with half and go through the other half. 

[WhyGee]

unfortunately no, that was just a simple example to explain the problem. The scene itself is more complicated and the cloth is moving around. I need some of it to pass thru wherever it may encounter a collider. I'm looking for something like the wire solver "nocollide" attribute if I remember correctly. 

 

Thanks!