It took me 12 hours to export a 10-minute video.
I render in 1080p and mp4.
No hardware lag (average CPU: 18%, GPU: 12%, M2 disk 2%)Only the program itself is slow.
Is there a setting to speed this up or have I done something wrong?



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https://www.youtube.com/yepkoo
https://dev.epicgames.com/community/profile/bxvo/Yepkoo#learning

That seems crazy long but then again, I only render scenes that are say 1:30 long max then use an editor to put them together. My last project I had a 1:00 scene take close to an hour rendering with an RTX Titan. Water and multiple particles can really tax your system. I’ve never found a huge difference with super sampling on or off. I’d deselect it. Definitely tick optimize with full size rendering. That will speed things up. I’d try breaking down into smaller scenes as well, but that’s just me.

My "NEWEST" Latest:)  Movie Made With Amaaaazing iClone


—> High Noon”ish” in Narrow Valley<—

It's also hard to guess without knowing your system specs AND (most importantly) your scene specs.  Reflections/transparency can cause issues - you can try turning them off - but in general to troubleshoot you just need to render some frames with various things turned on and off (and various objects hidden or not) until you find the culprit.  And, ultimately, it might just be your GPU needs upgrading.

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Alienware Aurora R16, Win 11, i9-149000KF, 3.20GHz CPU, 64GB RAM, RTX 4090 (24GB), Samsung 870 Pro 8TB, Gen3 MVNe M-2 SSD, 4TBx2, 39" Alienware Widescreen Monitor
Mike "ex-genius" Kelley

I checked the "optimize with full size rendering" box to try it out. I did not see much of its effect or I could not tell the difference because I tested it for a short time.
I used too many particles like you said, could that have an effect?
As you said, I will try to divide it into shorter periods.



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https://www.youtube.com/yepkoo
https://dev.epicgames.com/community/profile/bxvo/Yepkoo#learning

The program only uses 12% of my GPU when rendering. I'm using 3060ti GPU and my processor is also powerful, It doesn't force the hardware at all when rendering, My computer is pretty cold, the only problem is the program renders slowly.



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https://www.youtube.com/yepkoo
https://dev.epicgames.com/community/profile/bxvo/Yepkoo#learning

I found the problem. If I uncheck the Super Sampling box, it speeds up a lot. What is this? Will there be any difference in quality for me?
Extremely fast when off, it will probably complete in 60-90 minutes.If I choose Medium, it slows down by 60%, if I choose Large, it took 12 hours.

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https://www.youtube.com/yepkoo
https://dev.epicgames.com/community/profile/bxvo/Yepkoo#learning

What is your screen resolution and what is your render output size?
Super-sampling is an anti-aliasing - smoothing objects edges. The quality is better by you pay the price with render time.

My screen resolution: 2560x1440
Output resolution : 1920x1080
Output size: mp4 - 158mb
Render time: 12 hours :blink:

The interesting thing is that while rendering, it didn't put any load on my computer hardware, the only problem is that the program itself is slow.
Maybe if it tries to use more of my hardware resources, I don't know if it can make it faster or use it.

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https://www.youtube.com/yepkoo
https://dev.epicgames.com/community/profile/bxvo/Yepkoo#learning

What size are your textures? How many objects in your scene? How many GB is your graphics card using for your scene? Iclone can tell you how much of your graphics card you are using in your scene.
I have a 3GB graphics card GTX 1060 Asus, so I can use 2.9 GB but it renders very slow. My iclone settings are on medium so I use less of my graphics.
I render in the best settings level 3 for smoothing, but use smoothing in level 1 for creating my scene. 
You could be using a lot of graphics GB in your scene.

I've found quite a difference in render speeds between 2x2 and 3x3 super sampling.

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