Maybe this is a dumb question, but I haven't been able to solve it.

Is it possible to get an age attribute from an RBD sim like a POP sim would have? I've tried different wrangle code in the sim and post sim, but nothing is working right.

Thanks

Bullet Solver SOP has Output/Age Attribute checkbox

or

Bullet Solver DOP or Rigid Body Solver DOP have Enable Aging checkbox, for this one you need to make sure you initialize f@age attribute before the sim

For some reason the attribute doesn’t come through. Maybe it’s something with initialization pre sim or something.

Ended up using a wrangle in the sim based on active and current frame and it worked really well.

If you have inactive pieces and you want @age to start when they get active you can use a popwrangle:


Like tamte said... you have to initialize @age outside of the dopnet and check "Enabling Aging" in the rigidbodysolver.