disappointed = Daz Studio
daveso
Posts: 7,014
i might need some optimizing on my computer or DS, not sure, but so far my new system with an Nvidia 4080 does not render any faster than my 2070 Super when rendering an Ultrascenery instance, one G8 and an HDR . I expected a gain at least, but this is really sucking.
Any ideas greatly appreciated. This system has 32gig DDR5@ 5600 and it is indeed running at that speed. The 4080 has 16 gig but only 5.5 gig being utilized. GPU temp only max at 45C. Right now the scene is at 28 minutes @ 79% complete.
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What hardware is Iray set to use, in the Advanced tab of Render Settings?
it was set to CPU/GPU when I 1st checked but I unchecked the CPU
just rebooted and tried same scene..rendered in 14 minutes which is a lot faster...over 50%.... not sure what was going on.
I've learned by reading the instructions from scene optimizer that if you want to get a fast render, it's best to finalize your scene (and any iray previews you need to make), save it, and close Daz studio. Wait ~30 seconds, relaunch and then render (do not use iray preview at this time). I believe that memoy used for iray previews and loading/testing mats stays in memory so closing and restarting Daz gives you the best chance to avoid falling back to cpu rendering. :)
Not sure this is what happened in your case, but might explain why it was faster after reboot.
I've found Daz is slower to render if CPU and GPU is checked, I always have CPU unchecked and it's much faster. Glad you got it to work!
I soon learnt a better card and more VRAM and RAM does always not mean a faster render, just that you can render bigger scenes
As a way to debug, disable the option in the hardware settings called "CPU Fallback". If your render ends up as a solid black screen, that means you are running out of VRAM. You can turn CPU fallback back on later if you want but ideally you always want your scene to render on GPU. The black screen is a good way to let you know when you are out of VRAM.
The tip about relaunching Daz Studio is very valid. Daz often gets in a bad state where once it runs out of VRAM, you'll have to relaunch Daz Studio in order to free up you VRAM again. Even if you try to optimize your scene after running out of VRAM before trying to render again, it might not work until you relaunch.
I do this and also reboot my computers. If I forget, I get bit because they will crash (Win 10 ones). They are cranky.
thanks..all..yeah, DS doesn;t clear ram.maybe that will be fixed in DS 5?
I have to say, I just did a dforce simulation on a top and it took 25 seconds instead of 5+ minutes. Now that is a time saver for sure/
As far as I can tell, not clearing RAM or VRAM is a problem with the newer versions only. No problems in DS 4.15.0.2
maybe I need to go back
I still use 4.16 most of the time. I keep the beta branch more updated and use it sometimes when I want to do something the new DS is actually better at (that doesn't happen often.)
I think that is the best way to use DS, you can have the benefits of both versions. You can keep 4.16 for its strong Iray performance (often faster than the Iray in 4.21) and functional Ghost Lights that were broken by 4.20. There are handful of things that 4.21 does, like adding VBD support for volumetrics, it loads faster, and the new Guided Caustic Sampler can handle indoor rendering pretty decently. Well, sometimes, I still haven't figured out what is going on there. Sometimes the guided caustic sampler can actually render faster than 4.16, but then other times it doesn't and it takes way longer.
And it makes sense to keep the beta as the up to date branch since the beta gets updated more frequently and any new features will show up there first.