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Spektrafilm OFX

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Bruno Chansou

Spektrafilm

Discovered yesterday and tested today. Yet another OFX plugin to simulate the look of chemical film.
This one is free; you’re invited to make a donation via Ko-Fi when you download it.
It’s still in beta but already works perfectly.
I’m not sure if the simulations are completely accurate, but I really like the results produced by this OFX, and there are plenty of settings you can adjust to get the look you want.
 
Bruno Chansou said:
Spektrafilm

Discovered yesterday and tested today. Yet another OFX plugin to simulate the look of chemical film.
This one is free; you’re invited to make a donation via Ko-Fi when you download it.
It’s still in beta but already works perfectly.
I’m not sure if the simulations are completely accurate, but I really like the results produced by this OFX, and there are plenty of settings you can adjust to get the look you want.
Click to expand...
"in implementation terms, the expensive part is precomputed: spectra over the chromaticity domain are stored in a LUT".

I don't think this does what you think it does. Anything that uses a precomputed look up table is going to have issues with true subtractive color, i.e. blue skies from rec. 709. The problem with spectral conversions is that they expect similar color models(or domains). Ihmo, they are a dead end. Not to say you can't get some interesting looks, but you aren't goint to cross an additive to subtractive domain without an intermediate tetrahedral color model such as cognitive vision.

Also, the grain should not be darkening the image. Grain in film, is the image.
 
That is amazing and very generous of Andrea to provide useful plug-ins like this to the colorist community.

People who like the plug-in can buy Andrea a coffee at this link:

buymeacoffee.com

Andrea Volpato is creating open-source film simulation tools

spektrafilm comes to life during late-night coding sessions after my research work at KTH. if the project has helped you and you'd like to support its continued development, i'd be incredibly grateful
buymeacoffee.com buymeacoffee.com
 
Morgon Dickerson said:
I'm really loving the grain implementation - feels very authentic to me. I'd be curious to see if it were possible to break out the textural and color components separately.
Click to expand...
This is a feature request that comes up pretty regularly. Here is a quote from the developer:

„
Just a quick note on this:
the effects/texture happen in film space/raw exposure, which requires spectral upsampling. It is not just a color space transform that can be reversed down the line. Adding these „effect only“ versions of the plugin is on a todo list somewhere but not really straightforward to do.
The plugin is an integrated concept, pretty much everything that happens here is depending on spectral data compared to rgb colorspaces“
 
This looks like a great plugin. I haven't been able to have good play with it properly. It seems to crash pretty frequently for me on windows, whenever you adjust too many parameters. To be fair though I haven't looked through the instructions.
 
Stable on Mac so far.

Halation could be great but is there any way to cut off lower frequencies? I can't get it to only affect the highlights, it's acting more like a global blur.
Grain is great imo.

So far I am very impressed! I need to test more (e.g. DIR Couplers or Scanner look interesting) but the fact this is free is nuts.
 
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Hi, I’m new to the world of color grading—I’m just starting to learn—and I came across this plugin. It supposedly emulates film, much like Genesis and others. Has anyone tried it? I haven't been able to find much information on YouTube or anywhere else. I’d love for you to try it out and share your opinions on what it’s actually like.

github.com

GitHub - andreavolpato/spektrafilm: Spectral simulation of analog photography processes

Spectral simulation of analog photography processes - andreavolpato/spektrafilm
github.com github.com
 
Well, it's free. I tend to doubt it has the years of research of Dehancer / Filmbox / Genesis, but it's hard to beat free.

I only uses pieces of film emulation anyway -- just enough to create a style and a look that's appropriate for the scene. I have yet to encounter a single client who says, "I want this to look exactly like film." Something in the ballpark is fine.

BTW, for a great-looking film emulation, I'd give props to the people doing the current Apple TV show Star City -- that's one of the most effective "old '70s print film" looks I've ever seen. Gareth Spensley does the color at CO3 London, and I think he's on Baselight.
 
Rajneesh Kassin said:
Bueno, es gratis. Tiendo a dudar que tenga los años de investigación de Dehancer, Filmbox o Genesis, pero es difícil superar algo gratis.

De todas formas, solo utilizo fragmentos de emulación de película, lo justo para crear un estilo y una estética adecuados para la escena. Todavía no me he encontrado con un solo cliente que diga: «Quiero que esto se vea exactamente como en una película». Algo parecido me basta.

Por cierto, para una emulación de película de aspecto magnífico, felicito al equipo de la serie actual de Apple TV, Star City; es uno de los looks de "película antigua de los 70" más efectivos que he visto. Gareth Spensley se encarga del color en CO3 London, y creo que trabaja en Baselight.
Click to expand...
 
Sinceramente, no sabría decir si existen estudios al respecto; la idea es que alguien con la experiencia adecuada lo pruebe cuando tenga la oportunidad y comparta su opinión, ya que, en mi opinión, ni Dehancer ni Genesis hacen realmente lo que afirman hacer.
 
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