I'm currently working on this manaflow scene in blender 2.83 beta 04/18/2020. The problem is I found that when I bake the particles sometimes my computer/iMac will shutdown or restart on it's own and will take me back to the login menu. my last manaflow attempted for this scene worked fine before I made some changes to my scene but now when I bake the particles my computer will shutdown or restart when I bake the data it fine. do anyone know some tips/workarounds to make my computer crash less when doing something in blender like manaflow?
I do not know a lot about computers, but when your computer shuts down or restarts by itself, then I'd guess that's a problem with your computer...
Blender can crash. Blender can freeze your computer, but it can't restart or shutdown your computer. Period! Mantaflow or no Mantaflow.
But that's only as far as I know, so...
Hi shanr, a lot of people have issues when trying to render the rocket scene.
I think I know what the issue is. Post a link to your .blend and I will probably be able to fix it (if it is what I think it is...).
But no matter what, your computer shouldn't restart itself (or my computer knowledge is even worse than I thought).
Well shanr, it wasn't what I thought. In fact I cannot find anything wrong with it and I can't get it to crash. You could change the Render Tile Size to something like 32 * 32, or 64 * 64
300 *300 is a bit large for CPU renders and together with Denoising that consumes a lot of memory. (But not so much to induce any kind of crashing.)
Did various kinds of renders, but everything was always okay, so it seems that it's not the file that is causing the problems.
BTW I do not have a fancy high-end PC or so. Mine is more than 8 years old, can't even render on GPU;)
what do I need to do to reduce the time
Download 2.83 beta (or 2.90) and enable Adaptive Sampling here:
Makes a huge difference!
So. I rendered Frame 107 with your settings on my computer in 10 min 45 sec.
The same frame with Adaptive Sampling and a Tile Size of 64 rendered in 7 min 40 sec.
When reducing the Samples from 64 to 32, you lose a little bit of quality but it renders in just over 5 min:
So, you can halve the render time maybe, but this is how it is: rendering takes time! Especially when rendering animations. even 2 min per frame and 30 frames per second means a render time of 1 hour per second of animation...
This is why they invented render farms I guess;)
I figured out how to stop my computer form crashing when using mantaflow to bake the particles. I pressed free particles and free data and turned down the resolution divisions to 100 and pressed bata data. After the data was done baking I pressed the three little boxes that say spray and bubbles and foam. After that I went to the particle tab and beside spray and bubbles and foam I pressed the eye icon to hid them from the viewport. After that I pressed bake particles and it was fine my computer didn't crash.