Hello,

Question about the detangle sop and specifically the previous position. The docs say:

"The incoming P attribute is considered the new deformed version of the geometry. The Previous Position attribute stores the undeformed version which is assumed to be collision free."

Does it mean free from collisions with a collision object that you might use, or does that extend to also mean that plus free from self collisions (self intersecting)? I watched the video from Jeff's top 10 features from houdini 17. The way he worded it made it sound like it was free from collisions with collider, not self collisions. Also the last example he provided with the detangle sop with the "intestine" wires a self collision free previous position was not provided. He just used the regular position that had self intersecting lines.
It seems like it just means collision free with colliders, but just making sure.

Thanks

Ideally both, but it's mostly about polygonal intersections not overlaps within the thickness

For wires it's not a big deal as it's easy to push those out of collisions as all of those are just overlapping thicknesses that are easy to push away into collision free state

For intersecting polygons it would be more difficult deintersect if you already start with intersecting ones

Thanks!!