Attila Torok

Hello! This has been (sort of) possible for a while now. If you are using the Recipe Builder (from tab menu), which you totally should to create and edit recipes, you just have the enable the Submenu options for Parm/Node/Decoration recipes, and name your submenu.

That said, the current limitation, which is not coming from the recipe side, is that Houdini can not generate dynamically scripted menu entries with submenus for our xml based menus. Therefore you will still get a long single list, but at least with visually separated categories. I would suggest to submit and RFE for that as the more people asking for it the better the chances are to get that fixed.

If you just want to add this to your existing recipes, you just have to add/edit the extra key in the recipe's json file under properties/submenu. That might be faster then re-saving all your recipes.

The Bindings tab simply responsible to assign the right volume for the right functionality.

For example, Pyro Solver would output a volume named 'density', therefore the Smoke Volume set to 'density' by default to use that as the volume for smoke visualisation. Similarly you can choose what other volumes assigned for 'Scatter' or 'Fire'.

For the majority of cases, you can leave these settings on their default value.

Adriano
the new file cache is rubbish. Explicit or constructed it does not save the file while just playbacking the scene. it's horrible.

Unfortunately, the 'Automatic' file mode is indeed not included. It is simply a 'write' or 'read' tool to make the topnet integration simpler.

While not the most ideal if you used to that workflow, as mentioned by others, I would also recommend to switch back to the previous filecache version if this is a must feature for you, or please use the file sop.