Blender Film Grain - and it's procedural!

[@PickUpTheCatToSurvive]

a pro tip when applying film grain is to use a luminance mask from the underlying layer so it only affects midtones and highlights, while leaving the shadows and blacks clean, as that is where compression hits the hardest. this results in a cleaner, sharper image while still having grain presence where it matters, while avoiding the decimation of yt compression

[@Lucas72928]

Shouldn't shadows be noisier? If you think of the probability of a photon hitting a certain part of the camera sensor, it's definitely higher for highlights and lower for shadows; this manifests as the SNR. If it is about the compression and not the image sensing, then I would still have the shadows be noisier, so they're more compressed, as you said, similar to how the compression algorithm would behave with a real image

[@ThiloAdamitz]

@@Lucas72928 You are right. The darker areas of the frame should have more of the grain visible.

[@AshLordCurry]

​@@Lucas72928 that's what I was thinking too. But isn't compression uglier on dark pictures?

[@Lucas72928]

@@AshLordCurry Yeah, there's fewer darker colors than lighter colors when compressing, which can lead to banding or other artifacts... The thing is, if you're going for realism, that's the same thing that happens to real photos. If it's artistic choice then just choose whatever you like!

[@PickUpTheCatToSurvive]

I'm talking specifically to applying grain for media which will be posted to YT, Instagram or any web medium for that matter, as a heavy compression will be applyied, and the presence of grain in the shadow areas will lower the picture quality overall, as each frame is changing constantly and is in dire need for a larger bitrate. If you take a look to any modern music video which emulates film, you will notice that grain is applied to mid tones and highlights whilst the shadows and blacks remain clean

[@CGMatter]

as expected, youtube compression really kills grain - watch in highest quality to really see what's going on! also addon can be found here: blendermarket.com/products/photoreal or much cheaper here: www.cgmatter.com/member/grain

[@Jones-d8q]

This makes me feel like a real blender guy cuz I figured this out before CG Matter showed me.

[@stial]

I didn't even know it's actually possible, this is incredible!

[@tendividedbysix4835]

The magic number is your aspect ratio is such a great tip thank you

[@kpasta6112]

Since we're mostly accustomed to digital noise, adding a bit of color and applying the whole thing mostly on the dark areas, would improve this a lot. I wonder how grain works on film though.

[@ThomasMoore-f6z]

you could tick jitter on a lens distortion node without distorting anything and it will give a spectral kind of grain. Makes it look like film footage but isn't customisable

[@DazDroAnimations]

Thanks I was planning to figure out a good way to do film grain!

[@JamieTheEnby]

For what I figured out being the best way to post process film grain is through the Film convert Davinci resolve plugin, the way it does it just blows me away with how accurate it is. However I’ll definitely try this out when I have the chance.

[@EricBacus]

didn't know about # for expressions! Nice tip!

[@iatetakis1044]

Geometry nodes tier list when?

[@davidmcsween]

The real question is... when will they depreciate the old texture panel and give us node textures as teased by the actual workspace that ALREADY exists! 😂

[@Chief_Mojo]

oooh composite... i do mine in camera during the render process.

[@_spartan11796]

Happy Friday boys

[@s00n62]

can you make a video for Dithering in compositor ? and btw keep the cooking🔥🔥

[@KadoLaFlare]

Video Idea: How to composite motion blur in blender

[@moboxgraphics]

This is cool, but I really do not like baking too many post effects into the frame

[@Florianski]

You can just save the render as exr and put the noise on its own layer if you want a non destructive workflow

[@SUSGG69]

How do I make a node network? @3:03

[@davidramis-us]

long time listener first time caller! I am curious if you have found a method to emulate digital camera sensor noise? I would love to have a way to do it procedurally as I am currently overlaying (with a luminosity mask) grey cards shot at different iso's.

[@pile333]

Nice. How would you replicate the "camera tilting" used by many recent movies to add realism to the shooting? I remember you made something similar in the past but I wonder if there's an easy updated way to do that procedurally with geonodes.

[@sodiufas]

WDYM? There are tilt settings in camera, in the data property tab.

[@lnsnick]

Hey guys 😮

[@KP-wz3xc]

Can you go low with the sample count and have a higher noise threshold if you use grain like this?

[@VoidWalker-p6q]

It doesn't look right, noise must not be everywhere equally (if you are planning to immitate camera)

[@byAndreasEkberg]

nose touched, 312 times ; )

[@sicfxmusic]

313 actually, the one you can only find at 0.25x speed ; )

[@Chief_Mojo]

are you secretly liking my posts? i wonder how similar our approaches are.

[@helloitsokyrago]

so its like ,32 samples and not denoising but professionally

[@CGMatter]

that noise is actually a result of not enough light bounces etc hitting the camera. it is a different kind of noise than the general film grain best practice is to get a perfectly clean render and then overlay noise on top (which will let you integrate other footage etc)

[@huzaifarafiq-u5m]

"uncheck denoise" button before rendering and same results

[@savageopress1753]

No. Film grain and render noise are vastly different. Render noise will end up looking unprofessional and is very harsh and jarring. Additionally, it will not update to be different noise patterns each frame. (At least not by default.)

[@Isnanbro2003]

Watched it at 2X, it was too slow

[@SamathaSulikowski-t3n]

Pfannerstill Stream

[@PoollShietz]

Which one of yall eyes keep making noisy pattern go to a doctor