Beep Boop

I would also suggest doing some file caching, especially if you have a lot of things being calculated at once.
For your viewport preview you could also try this:
https://i.imgur.com/3Qtgn3H.png [i.imgur.com]

injener3d
Hello everyone!! There is such a question! YouTube is full of lessons on the disintegration of the surface into particles, but I have another task: I need my particles to leave the emitter, fly and, as they approach, begin to form a surface, as it were. How to do this? as if from the bottom up. I would be very grateful for advice and ideas.

not exactly a particle-based approach but worth taking a look even though the tutorial is old
https://www.sidefx.com/tutorials/point-transformation-in-houdini/ [www.sidefx.com]

yu_fsns
In Houdini, I have set up a collision in the POP sover with a static object node in the POP sover.
When I render the simulated particles, the collision object is also rendered. Is there any other option to hide the collision object when rendering?

Right now I am using groups and blast to erase collision objects, but I think this method is not a good idea.
Thank you in advance for your help.

Go to the Object Merge tab of your POP Net and instead of "*" select the POPobject(s) you want to be rendered.
https://i.imgur.com/F58srds.png [i.imgur.com]

The "*" in Houdini in general stands for "everything" in this context.