E-Cycles - up to 2.5x faster rendering for Blender 2.79 to 2.82

Hi Flup,
the price in fact was reduced during beta and until now only grew to it’s normal price.
A lot of users who joined early still pay 6€/month for 2x faster render, reduced noise, new denoiser, etc.
I also have students at 3€/month.
To be fair, you should also say that the year option is now more affordable.
And every time a user kindly asked in PM to benefit from a reduced price after the limit, I gave him a coupon to still benefit from the offer. So if you got surprised, just PM me.

For the amount of features and the stability it reached, it’s more than fair I think.

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Indeed it is impressive :slight_smile:

For the mac users, after speaking a bit, the deal would be the following. Everyone does a step. I do a build, you gather users. The more Mac user join, the more I do updates. If that’s ok for you and you would buy a mac version, post “Mac 2.8x” or “Mac 2.79x” depending on the version you want.

So I sent you a PM and got the previous price, thank you for that. However, in my first test the render speed is about the same as this build (20 sec of 12 min render time):

(this is 2.79 with dithered sobol and scrambling distance, sort of a 2.79 gui with a lot of the new stuff from 2.8 under the hood)
So my question is:
where can I find the options which are specific for e-cycles? I can only find the dithered sobol, scrambling distance is not in your build?
I have trouble getting the AI denoiser to work, it keeps crashing on me (maybe having multiple renderlayers is the problem). And to understand: did you include the new denoiser in your build or is this also in the master of 2.8?

Mac 2.8x please

You’re welcome.

  • E-Cycles just works out of the box. Indeed, you can get a good speedup with the scrambling distance patch, but you have to fiddle a lot to find values that don’t break your renders. And it won’t help at all at low spp, which is now possible with the new denoiser.
  • E-Cycles supports RTX cards
  • Dithered sobol in E-Cycles has a lot of fixes.
  • You get E-Cycles builds every week on both the 2.79 and 2.8 version and also get support. To give you an idea, where I work we pay 140€/hour for support for one of our software. It’s just a programmer that answer your mails or discuss with you on the phone, the software price is separate. In your case, you will get 4 builds for 10€ so about 2,50 €/build. With Graphicall, you have an old 2.79.6 build from November with all it’s bugs and you are dependant on other willing to do the job of patching and building for you.
  • If you like to do things yourself, you can also take the course, you can then patch Blender yourself, do as much builds as you want, based on the branch you like. And you will also learn to add modifiers, customize the UI, etc. Maybe a better fit for you?
  • The new denoiser is not in 2.8, but it will certainly come in at some point. If level 3 crashes, use level 2 as it requires less ram.
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A new version of the addon is ready for download. It makes transmission and sss optional, so that you can use only half the memory to denoise when using level 3.

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Hi Viet Anh,

I’m working on on it, here is a preview of my dev branch. This is Branched Path Tracing and it took 33sec per frame instead of 1min49 on master on a single 1080Ti for FULL HD and without denoising:

Here a still of this video for max details:

So all render modes will now work much faster (PT, BPT and preview)


Incredible! Can’t wait to try it on the release.

I’m planning to use E-Cycles for my company’s cloud rendering system which has over 50 GPUs on it. With this improvement, we can save tons of cost per month to keep the system alive.

I will make some test on our system as soon as the release of branched path tracing is ready.

Thanks for your hard working again!


It will be in the next feature update in April.


The weekly update is available.

  • Just like master, it uses less memory thanks to a patch from @skw for UVs.
  • The linux builds have no AI denoiser yet because of a problem in the OIDN library, a new build will come as soon as the bug is fixed.
  • The AI denoise addon is also now included and updated, you just have to activate it.
  • Progressive rendering also better benefit from the speedups now. On a user test file, time went from 3min01sec on master to 1min54sec on E-Cycles.

Heya bliblubli,

just wanted to say thank you for what you are doing here. As a hobbyist and a father of three with a full-time job, time is my most precious resource. Both your course and your build service for E-Cycles help me save some of that, so thanks again :slight_smile:


could you post other short animations of different scenes?
I would like to see the results of various scenarios
if it is possible,
thank you so much

I’ll add more animations over time. In the mean time, here is a list of quick links of examples of E-Cycles usage that were disclosed:

Rendered with E-Cycles at 23 sec per frame all inclusive = scene preparation, path tracing, AI denoising, compositing, file saving (which starts to be a good chunck of the overall time actually using PNG)


thank you!

man, in these fragments of animations it seems to me that in this code you are writing, in metaphor, you are opening a portal that takes us into a new world … just right in time for 2020. :grin:

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Would be awesome to see the speed on 2x 2080Ti


The Linux version now works with the AI denoiser properly.


For some reasons gumroad page isn’t working.

BPT is now accelerated as well as PT? This build is available?

It seems indeed Gumroad is down at the moment. I would like to sell on Blendermarket also, but my tax lawyer said it is illegal in europe, because they don’t pay VAT, which is both risky for you as a buyer and for me. Your state can pursue you to court for not paying VAT, you can then of course pursue the BlenderMarket as the european law make the shop platform responsible for gathering and dispatching it to the right tax administration. But it’s hard to do it when their company seat is in America, which means in the end, you are getting the troubles. Gumroad does everything properly, so I stay there until other platform become legal.

BPT is also accelerated, but less than PT in current builds. The videos I made at 20sec per frame are made with BPT using my current dev branch. It will be available in 2-3 weeks on the product page.

Edit: gumroad is working again.