How I Prep My Trails To Sim Smoke In Houdini (2/3)

[@JediTridae]

why not just use a trail SOP? the sopsolver is overkill for patching substep motion. its best to avoid any additional simulation networks whenever possible. 1 node would do the job of 5 that you have there

[@mrbennelson]

You’re totally right, and I agree you should do that if you’re given pre animated trails. I don’t that in this case because in the next part of the tutorial I show how to make your own trails using the pop sim. That’s why I went this route. There’s obviously a lot of ways to make trails too, you could draw them yourself or go other routes. I was just trying to show a way to feed 1 or 1000 missiles in and you could get some cool results.

[@mrbennelson]

Oh I think you were talking about the sop solver part - well yes a trail would do the job too. I think at the time I was trying to use it to help show how the sop solver works, but I’ve also had many times where using it is almost just as fast as timeshifting a trail sop like 240 frames. But yeah I guess just preference 🤔this go around.