Glue Joints + PGS Solver = Unstable

[Shedletsky]

I built a tower out of parts where every side is a Glue joint. I want World of Goo style joints where they can be broken by impacts.

It works fine with the old solver but it behaves badly with PGS on. In the image below all I am doing is pressing Play in Studio.

Here is the level:

BadPGS.rbxl (10.8 KB)

[buildthomas]

I’m not sure if there is glue support in PGS yet, some staff members commented this 7-8 months ago:

On another topic

As we proceed with final tuning and polishing on the new physics (PGS) solver we would like to get your feedback on the Glue surface joint (as yet to be implemented in the new solver).

But apparently it was still planned:

Articulated physics

Also, glue will be supported by PGS.

Maybe one of these people can comment on the issue.

[zeuxcg]

There’s partial glue support - IIRC we mostly stabilized it for cases when glue is used as a ball-in-socket. cc @timobius @chefdeletat

[timobius]

Glue joints for the purpose of having a breakable and compliant connection between parts have been delayed so we can focus on mechanical joints (ball-socket, spring, sliding joints, etc) using the PGS solver.

[chefdeletat]

Yes indeed glue joints are currently quite unstable under PGS. They should be used only as a way to make a ball-in-socket (which soon you won’t need as the new joints are released).

[Shedletsky]

Thanks Tim.

Can’t wait to get my hands on that RopeConstraint.