BMD Fusion - Temporal de-noising tricks and flicker removal on CG renders

Some tips and tricks on doing temporal de-noising in Fusion. This is very useful to reduce noise in renders with low samples or flickering artefacts.
Link to the entire City Build Scene for sale :
statixvfx.gumr...
blendermarket....
www.cgtrader.c...
Link to the Fusion .Comp tutorial file for JUST the EXRs and de-noising setup (including the temporal median nodes):
gumroad.com/l/...
The scene was originally made by Redhoot:
redhoot_
redhoot_
Music by Edoy, song "Passage" from:
freemusicarchi...

[@jaaypeso]

Love this man! I would love to see a series on compositing CG renders in Blender/Fusion especially anything to do with denoising and managing flicker. This along with the Blender one you did are awesome! Thanks for sharing.

[@limitlessinmind]

Thank you for showing us this amazing thing, hope this will reduce render time without losing image quality. As blender cycles x is already pretty fast +ai denoiser+BM Fusion temporal denoising, sounds promising!

[@ianjamesduncan]

Awesome!

[@revoltanim]

awesomeee this worked pretty well, ! any advice tho in how to reduce the noise in hair, I tried different things, so far this one is the best solution but just wondering if there is another tip you or someone else can share, thanks

[@statixvfx1793]

Super fine detail and transparencies are the trickiest bits. But using the velocity vectors to add a bit of extra motion blur sometimes helps. You can push and pull the pixels back and forth so at least "smear" some of the noise away.
At some point its just whatever tricks you have combined that works. Never a single solution.

[@Arjjacks]

Very interesting. So are there techniques for dealing with animated objects in scenes, then? Coz that's the problem I'm having at the moment.

[@MetalAnimeGames]

As you have suggested a similar approach for the blender compositor, would you recommend fusion or blender to run this temporal denosiing technique? Is there a difference between the two?
Also, how does this compare to deflicker effect in resolve?

[@Lakus231]

if you want to do it in blender, go with version 4.2 or above (in the compositor side panel under settings: set it to GPU, for me it's 5x faster than cpu)
But davinci is even faster and easier to set up.
results looked identically.

[@tamilorejoseph4704]

Hey, was the project exported to fusion as an open ear multilayer ?

[@funny1048youtube]

Wow, this is incredible, I have to try this out, I wonder how well this would work with multiple objects being composited together with effects applyed such as lens flare, glare, color adjustment etc. It would be great if It would still reduce the noise using only the combined elements instead of each individual render pass since the denoising process would only have to be done once and won't overburden cpu.

[@funny1048youtube]

Also, how well would this handle motion blur/depth of field that's baked into the image before the denoising?

[@statixvfx1793]

@hf4a2 is correct, you'd ideally want to denoise your render passes before you start comping. That way you can choose how much you want to denoise as some passes have more noise in them than others.

[@monocore]

Super useful! I just replicated this in Nuke with Idistort and worked wonderfully. Thank you!!

[@monstar5746]

Hello how do you get the vector pass from blender ? I exported EXR multilayer with vector checked in the passes but can't see it in Resolve

[@dendenisification]

Have anyone opinion how node based temporal node setup in blender/Fusion compares to Davinci Resolve Studio temporal denoising in terms of quality?

[@Lakus231]

As soon as movement comes into play, davincis build-in temporal denoiser produces a blurry mess, unusable imo., but for static stuff its pretty good.
It can't utilise the vector map, that's why the node based is much better but generating the vector map will add a bit of render time, for me it went from 0:46 to 1:02, still much worth it.
When building this setup in blender, use blender 4.2, in the compositor side panel under settings: set it to GPU (it's 5x faster for me than cpu)
But davinci is still a bit faster and easier to set up
i get the best results by:
-ideally denoise your render passes first individually in blenders compositor (don't denoise the Color passes, you would just loose details because they are usually noise free),
then temporal denoise ("direct"and "indirect" passes (you could also add them together before denoising to save render time, if you don't need them seperated for post production))
-avoid animated noise seeds (adds more flickering)
-increase resolution instead of samples for better quality (file size and denoising time is increasing tho, so you need to find the sweet spot for your system if vram isn't a limiting factor)

[@dendenisification]

@@Lakus231 Thank you.

[@robertYoutub]

Thanks so much, I had that in Nuke and ever wanted it to redone in Fusion. Very helpful.

[@Bolaway]

Someone can tell me why Blackmagic studio created DaVinci Resolve, considering Fusion is even better?

[@mandienk2702]

Davinci resolve is a software suite that includes editing, grading, visual effects, motion graphics and audio post-production, Fusion does not support editing or audio post-production. Fusion was developed by Eyeon and acquired by Blackmagic Design and integrated into Davinci Resolve. If you want to use only Fusion, it is more interesting to turn to the Standalone version which will be more efficient.

[@thenakedtruth0205]

IDIOT IS DOING TOP DOWN FUSION NODE TREE. MOST USE LEFT TO RIGHT NODE TREE FOR SIMPLICITY, BUT AFTER ALL HE IS A GENIUS IN HIS OWN MIND!

[@statixvfx1793]

Lol :)

[@zhongjianwu3692]

Open this Fusion tutorial,and surprised by the real time render of blender.I mean that really fast.

[@statixvfx1793]

Cycles have gotten very fast indeed, with the upcoming CyclesX its going to be even faster! :)

[@syberman1102]

Do you necessarily need the studio version?

[@3d3rbart]

no i think