Emil Rasmussen
Oct. 16, 2025 11:00:30
Hi, does anyone know why this wont work?
I want to animate the breakthreshold of my vellum weld constraints, so that the balloon pops at a specified frame.
So i thought, easy, lets dive inside the solver and animate the constraint, but it doesnt seem to work at all.
I animated the threshold to go from 100 to 0.001 on frame 25, but it doesnt seem affected by it. Only seems to be affected by whatever breakthreshold i set in the vellum constraint SOP
FedorK_FX
Oct. 16, 2025 11:25:47
Vellum Welds that attach points together aren't true constraint primitives, it's just a bunch of attributes on the Vellum Geometry, so break threshold should be modified on the Geometry data, not ConstraintGeometry.
Emil Rasmussen
Oct. 16, 2025 14:05:50
Thank you.
I was wondering why i wasn't seeing any breakthreshold attribute on the constraintgeo.
So it's actually just a regular point attribute on the geo..
tamte
Oct. 16, 2025 14:10:03
you can also set @weld to -1 in case you want to un-weld some points immediately or in a specific art-directed way