PRT Volume memory footprint?

I have a PRT Volume (1.5.0.37168, I’m slow to update) that works fine (fast) when spacing is 1.1, but takes forever (I haven’t had the patience to let it finish) at 1.0.

I only have a memory estimate on the particle results, so I have no idea if the levelset grid is using too much memory or something (though taskman says I have plenty left over).

But I’m looking at 3 minutes to render when the spacing is 1.1, but >45 minutes when it’s 1.0. I eventually canceled the render, since 1.1 wasn’t terrible looking.

So what is the limiting factor on spacing? How much memory should it consume?

  • Chad