Question on Performance / Crashes

Question

I'm currently working on the Mesh Modeling Bootcamp course and have been adding each of the models to their own collection as I go. Once that chapter is done, I disable the collection and start a new one for the next model.

I'm halfway through the revolver now and I don't know quite why Blender is crashing so often. I wonder if it's some setting I have enabled or not enabled, but I figured I'd ask if that is a bad idea to add all those collections to one scene? I doubt it, since there are so many more complex scenes full of objects and shaders, and 8 collections is nothing at all. I also have worked more complex scenes on the same machine, with the same Blender version. So I'm puzzled.

The crashes have been happening when adding edge loops with the subsurf modifier enabled in edit mode. 

Any insight on what should I check to troubleshoot common crash culprits?


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Reply
  • Martin Bergwerf replied

    Hi Nathalia,

    I rarely have a Blender release crashing on me...maybe it is because you are using an experimental version (4.1, according to your screenshots)?

    I'd suggest using 4.0.2 instead.

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  • Nathi Tappan(nathitappan) replied

    Thanks Martin!

    I'll give that a shot... I thought I'd check since I've been using the 4.1 version for a couple of months and this just started happening, but I guess since I haven't really seen any crazy better features in the 4.1 release I should just get the stable release. Thanks again!

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  • Dwayne Savage(dillenbata3) replied

    This was a bug, I don't know if it has been flagged as fixed or not. If I remember correctly from the dev summery it happens more with intel GPUs and Macs. Basically if the SubSurf modifier is the last modifier in the stack it will use the GPU(I think in 4.0 it always uses the GPU, but not positive). You can turn this off through preferences->Viewport->Subdivision->Uncheck use GPU. On my system I also have to uncheck GPU depth picking which is in the selection section above subdivision section. This was causing my system to crash and move slow. Then again my system doesn't actually meet the minimum requirement, but my Dual core CPU does it's best. 

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  • Dwayne Savage(dillenbata3) replied

    nnathitappan question for you. I got a notification saying you followed me. I clicked it and it gave me a screen where I could follow you. How did you follow me? Also what does following someone do?

  • Nathi Tappan(nathitappan) replied

    Interesting... I might test that too! I do use a Mac, and it is happening with the subsurf as the last modifier on the stack indeed.

    The odd part is that it only happens when I have it enabled in edit mode, and when edge loops are added. I haven't modeled anything with it enabled in edit mode, so I can move along.. It's just.. odd


    I actually don't know the answer to that. lol. I just saw that and clicked some buttons. I guess we can see other artists projects as they come along? No idea...

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  • Martin Bergwerf replied

    Ah,

    I forgot about the GPU Subdivision...I always have it turned off.

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  • Nathi Tappan(nathitappan) replied

    I'm testing it out in the next video lesson and disabling the GPU Subdivision fixed the issue! Thanks guys!

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