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How Do I Apply / Load Viewing LUT?
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  • Total Posts: 47
  • Joined: 09 March 2012 06:23 PM

I’ve imported some LOG DPX footage into Smoke OSX 2013 SP3 and am trying to figure how to load a LUT file, preferable a standard Cineon LUT or an Alexa one I generated in both Autodesk and Lustre format.  I noticed LUT controls in the player options however the button that seems like where I load a LUT is greyed out.  Where can I load a LUT?

Also, if I am working with log files, should I select “Logarithmic” in “Image Data Type” and “RGB Mode” in the player controls to view through a lin conversion?

Thanks!



Replies: 0
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hi,

before you can apply a LUT to a viewport you have to load it in Preferences > LUTs -
this section appears to be project based - so do this for each project you need them.
ive made a feature request ages ago for keeping them User related or insert them in the init.cfg, as was in the (good ;-)) old days ...
robert



- robert (unified)

Replies: 0
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  • mmorey
  • Posted: 15 October 2012 12:51 AM

Perhaps the Talented Mr. Kay could do a detailed tutorial on LUTs, as I am somewhat inexperienced with using them, and also find the process confusing.

Cheers, Mike



Replies: 3
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oh dear!!!!!  I seem to pop up every where ;)

This has been something I have wanted to do for a long time and I do have it on my list.

However it is a total minefield at the best of times because of the different variations/formats/cameras.

But the light at the end of the tunnel is that we are going with ACES (already available in Smoke 2013 MAC) which might make peoples life a lot easier mixing formats and matching colour spaces.

Or are you just looking for a video on how to load LUTs onto footage and onto the viewers?

Regards
Grant

Author: Ultimate_Smoker*

Replied: 15 October 2012 10:23 PM  
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Grant, I am an experienced Flamer & beginner Smoker, but have worked mainly in commercials, which means I have almost no experience with LUTs. The very basics would be helpful, such as the difference between a 1D & 3D LUT, and applying a LUT to a viewer only, rather than actually affecting the colour space of the clip, and why you would want to do either/or. I understand that the sheer number of variations in file formats makes an in-depth exploration complicated. Just the basics, sir.

Cheers, Mike

Author: mmorey

Replied: 16 October 2012 02:35 AM  
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Well, the easier, the better I say :)

I’ll add it to my list and have a think about what I can do…

hmmmm.... first need to source some material that needs a LUT.

Thanks Mike!

Author: Ultimate_Smoker*

Replied: 16 October 2012 02:50 AM  
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You could start by EXR’s, which are supposed to be linear, and DPX’ which are logarithmic :)



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Replies: 4
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Ahhh.... now you’re digging into the nitty gritty.....  Each one is a separate topic on its own…

Just be careful regarding the file formats.  Depending on how you save the colour space into the file will determine if they are log or lin.

For example, if you are working uncompressed in either Smoke or Flame, the system typically creates the media cache in DPX.  All media brought in won’t be converted to log.  It is simply stored in the file.

Where traditionally DPX coming from a film scanner is log because thats how they could squeeze as much of a range of colour information from the scan.

Its all about the context.

There are a few books I could recommend that go into this detail ad-nauseam :)

Regards
Grant

Author: Ultimate_Smoker*

Replied: 16 October 2012 03:47 AM  
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I’d be interested in the book list:

Cheers, Mike

Author: mmorey

Replied: 16 October 2012 03:50 AM  
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One of my “bibles” is the book by Ron Brinkmann --- The Art and Science of Digital Compositing: Techniques for Visual Effects, Animation and Motion Graphics

It will give you a ton of information on colourspaces and how it affects compositing.  Loads more other info there too :)

Regards
Grant

Author: Ultimate_Smoker*

Replied: 16 October 2012 05:46 AM  
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Thanks Grant. Book ordered.

Cheers, Mike

Author: mmorey

Replied: 16 October 2012 11:33 AM