Help Grab Rope - VR

[josemendez]

After some further testing it appears the problem was not that the hand collider was pushing the particles away, rather that it appears there is only a short section at the beginning of the rope which allows me to grab particles. I am changing the rope length at run time and the problem seems most prevalent when the rope is hanging vertically, while grabbing a horizontal rope at rest seems to work fine. I've gone through the script and I can't identify why this would be, as it seems the only requirement for particles to be grabbed is their distance to the hand. Is there anything such as other particle attachments that may be overriding this script?

You should not use this script to grab the rope if yoy expect to be able to do it with both hands at once. The reason for this is that it basically parents particles to the colliders in touch, which will enable to to overstretch the rope.

Unless overstretching is fine for you, a better approach would be to use pin constraints for this and use two-way coupling with the hands (similar to what half-life alyx does). That way the VR hands would not be able to pull further once the rope is completely taut.

Regarding the issue with not being able to grab certain particles, there’s no reason for it that I can think of. Only contact distance between colliders is taken into account. This is a long shot but: maybe  there’s no contacts being generated for some particles, due to them having the same phase as the collider?