Geo Self Intersection

[sipi]

Hey everyone,

Is there a technique to prevent self intersection when you apply position noise on a geometry?

[Aizatulin]

Hi,

you can try to use a feedback loop (or solver) and apply mountain sop several times with a fixed normal and check each time, if a point intersects with the old geometry. For example take all neighbours, and check if at least one direction to a neighbours intersect with the old geometry. If this is the case, restore the old position of the point. This will probably not work for every case but should be better than nothing and there is room for improvement

Here is an example

avoid_self_intersect.hipnc

[sipi]

On 10/27/2022 at 7:54 PM, Aizatulin said:

Hi,

you can try to use a feedback loop (or solver) and apply mountain sop several times with a fixed normal and check each time, if a point intersects with the old geometry. For example take all neighbours, and check if at least one direction to a neighbours intersect with the old geometry. If this is the case, restore the old position of the point. This will probably not work for every case but should be better than nothing and there is room for improvement

Here is an example

avoid_self_intersect.hipnc

Thanks!