Pyro Dual Rest rest_ratio / rest2_ratio are not changing

[chibley]

Hello all,

I'm looking to do some basic volume displacement using dual rest (something I've done before in the past), however I'm stumbling at the first hurdle now, when revisiting it a few years on: I cannot get a working rest_ratio and rest2_ratio out of a pyro sim. I could calculate it manually using the frame offset and blend length params, but I seem to remember simply being able to grab it from the solver.

I have initialized the rest field in the smokeobject DOP, as well as dual rest mode in the pyrosolver advanced tab, however the ratio detail attributes don't appear to move. Looking inside the sim at the smokesolver_build2/record_sim_settings_to_initialization_data script I can see that the ratios are being correctly calculated, however this isn't being exported properly when I lay down a Dop Import Fields SOP.

I've attached a really basic hip file.

pyro_dual_rest_ratio_not_working.hip

Can anyone help me?

edit: using 18.5.633

Thanks in advance.

Edited September 22, 2021 by chibley

[jkunz07]

The dop node path on your Dop Import Fields SOP should be either a relative or absolute path:

../dopnet1/smoke

or

/obj/pyro/dopnet1/smoke

will get the correct rest ratios in your case