E-Cycles - like a new GPU, 2.7x and 2.80 final available

Good idea (o;

Temporal alone doesn’t do a well job in DSR…added spatial NR as well:

NR off:

NR on:


Will upload the video here once it has finished rendering (o;
And also try with lower sample settings…this 1280x720 was done with 800 samples…and takes 75 seconds/frame.

So…Still images -> AI denoiser
Animations: DaVince Resolve Studio Denoiser (o;


Cool! I’m gonna try that workflow out.

Here’s the weird thing - I actually feed the AI denoised output to the temporal denoiser and it tends to eliminate the flickers and patchiness without reducing much detail. Its worth a shot as well!

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You use the AI denoised footage in DSR?

I just took the raw output…

Apparently there were some talks here talking about inter-frame denoising…but probably will be maybe implemented in blender 3.8 :wink:

Is the Intel AI denoiser for still images only or does it offer some inter-frame analysing?

Hi, there are some examples in the first post shows animations of arch vis without flicker. It is may only a setting problem.

Cheers, mib

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Intel AI denoiser is trained only for stills, but when well used it works for animation as @mib2berlin said :slight_smile:. Following advices allow fast fly-through:

  • clamping, it is the most important parameter here to make it flicker free. The lower, the better.
  • using faster presets help a lot too (fast or very fast).
  • having a lot of light come directly in the room with a bright HDRi or a simple white emission plane.

I’m not sure to understand what you mean. The example I show you is exactly what you write. A cube with a single hole (visible at the top right) lit by a single HDRi. No emission plane, no portal, the most difficult scenario, yet it looks good at 16 spp:

Note that the old denoiser also does a great job on animation. This is rendered in 12sec per frame on latest E-Cycles and a single 2080TI (1080p, lot of SSS, glass, DOF, etc.):

What preset did you use and what amount of samples?

For me it even takes 10 - 15 seconds to prepare the scene for each frame…

Yes, only the 2.79 version has the persistent data option, which is one of the best option for fly-through. It is scheduled for 2.8, but someone else started to work on it. So to avoid doing the job twice, I’m waiting to see if it will be finished or not and work on other optimizations and features.
I used 576spp iirc and there was no preset back then, but it something like the fast preset, so with very fast it could be reduced even further :slight_smile:
As many don’t believe E-Cycles can be faster then Eevee, I give a link of a video made by Boostclock.com:

Well I never used Eevee…and never will…
Leaves you with a blank screen for ages with not knowing what is happening (o;

Hmm…does 2.79 do some denoising on the fly? I don’t see the additional “initialising execution” at the end of each frame…

Nayway…I have to stick with the slow preset as faster presets gave me wrong lighting in the past…like the bathroom/beach scene…nevertheless it is still faster than the master branch (which took me 50 attempts to download RC1 today ;o)

I’ll do some more testing this weekend with your suggestions and the E-Cycles/DSR 16 combo…
just used DSR since version 14 before for just video editing…and now since Fusion Studio is included as well…even a better software package…

I assume denoise-wise there is no difference between 20190709 version and last Threadripper version?

PS: Even this mp4 in the link is unplayable with Quicktime player…seems some wrong settings with ffmpeg/avutils during encoding…even vlc on macOS complains…but plays…

Maybe as a side note…this render took 140 seconds on AMD threadripper with latest E-Cycles and 2 * 2080Ti @ 1920x1080, 300 samples, AI denoise set to 3, dunno if the same quality can be achieved much faster:

The AI denoising on the wooden surface looks rather unnatural…some patches just look flat and glossy…


Regarding the render you posted, this scene requires much more than 300spp, a fast preset (the tutorial shows how to keep equivalent lightning while making render faster) or an optimized lightning.
CPU + GPU rendering only works well for 1000+spp renders. At 300spp, your 2 2080Ti alone will be faster I guess.

The render from Boostclock has no denoising, because the fast and very fast settings are noise free at 100 samples most of the time, even in complex lightning situations.

Ah okay…thanks for the clarifications :slight_smile:

Have some time this weekend to play around with settings…anyway…a render time of around 1 minute per frame is satisfactory when doing animations…

BTW: Any news on a new dev branch release for threadripper? No hurry for macOS as my 1080Ti card is still on repair since over a month now…and I will probably move to Radeon VII for macOS due to NVidia drivers absence now and DSR doesn’t do AAC on Linux (o;

Doe I something wrong ?
When I mix cpu and gpu I get a gpu only and after finishing it starts a mixed render afterwards of the same frame.

Is this some config / installation issue ?

Hi, I use GPU/CPU render all the time, often GPU alone is faster by the way.
Add your system specs and E-Cycles version, please.
It would be nice if you upload a small example .blend for testing.

Cheers, mib

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E-Cycles 2.8 RC1 is available to download for Windows, Linux and Mac on the way :slight_smile:


Good morning Mathieu

You’re fast (o;

BTW: On which gumroad library is it? Don’t see it in the dev-branch 2019…

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E-Cycles 2.8 RC1 is now available for Windows, Mac and Linux. It has all the features of Blender 2.80 plus:

  • up to 2.5x faster CUDA path tracing and baking
  • Quick quality presets to render with very high quality or even faster than Eevee. The following fly-through rendered in less than 20sec per frame at 1080p on a single 1080Ti)

This scene takes even less than 10 seconds per frame

  • AI denoising
  • Scrambling distance
  • Adaptive Sampling
  • Dithered Sobol
    and much more.

You can get it now on the Blendermarket or Gumroad.

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in your builds, there are always duplicated some internal plugins,
can you please remove it?



Maybe @bliblubli you should try this