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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

REDLogFILM > Rec.709 LUT - Anyone have one? Made one? Graeme?

Luis Otero said:
This format (.3dl) works with HDLink, not Resolve. Resolve reads ".cube" and ".dat" only.
Click to expand...

I tried to convert Björn's LUTs to .cube format via Magic Bullet's LUT Buddy in After Effects CS5.5, but they weren't being interpreted correctly. I'm really interested in the Kodak and Fuji LUTs in .cube form if anyone has a way to convert them.
 
Doug Beatty said:
I tried to convert Björn's LUTs to .cube format via Magic Bullet's LUT Buddy in After Effects CS5.5, but they weren't being interpreted correctly. I'm really interested in the Kodak and Fuji LUTs in .cube form if anyone has a way to convert them.
Click to expand...

Even though it reads ".cube", to the best of my knowledge, Resolve's preferred format is ".dat". That is what is generated by cineSpace when you ask to generate a LUT for Resolve. Maybe that is why you are experiencing incorrect interpretation.
 
I've made my own, based on my own research. I offer them as an option, but you're on your own when it comes to mission critical work. Test them out and see if you like what you find. Also, if you have trouble with them, let me know and I do my best to fix them up.

https://dl.dropbox.com/u/27506/LUTs_LOG_to_709.zip

-Eric
 
Wow! I start a thread, go out on a job for a few days, come back and you guys have whipped up a whole comprehensive thing here. Thanks you all for the responses. I have also often wondered why RED hadn't supplied a simple LUT for use in post. It seems like it would be so easy for them to do and would save us a lot of hassle with vendor changeover. I am a huge fan of the ALEXA generator but it doesn't even have to be so full featured. That being said, I'll be checking out all the solutions provided. Thanks everyone!
 
Doug Beatty said:
I tried to convert Björn's LUTs to .cube format via Magic Bullet's LUT Buddy in After Effects CS5.5, but they weren't being interpreted correctly. I'm really interested in the Kodak and Fuji LUTs in .cube form if anyone has a way to convert them.
Click to expand...

Edit:

Ok, I converted one, check my post in the next page..





http://twitter.com/pm709
 
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Luis Otero said:
Even though it reads ".cube", to the best of my knowledge, Resolve's preferred format is ".dat". That is what is generated by cineSpace when you ask to generate a LUT for Resolve.
Click to expand...

I do not believe this is correct. Although the Alexa LUT generator also produces .dat files when you request a resolve LUT. I believe that the .dat LUT format was the one used by Resolve before Blackmagic. Now if you look in the Resolve LUT folder you see .cube, .ilut and .olut (as well as 1D shaper LUTs).
 
Doug Beatty said:
I tried to convert Björn's LUTs to .cube format via Magic Bullet's LUT Buddy in After Effects CS5.5, but they weren't being interpreted correctly. I'm really interested in the Kodak and Fuji LUTs in .cube form if anyone has a way to convert them.
Click to expand...

They are "3D luts" I can not export them as "normal luts". I will ask Fredrik our programer tomorrow he can probably solve it some how. I think those kodak luts are amazing the leave the highlights in a way I only seen in optical work before.
 
And yet, not a pip from Red or Graemme. Let's face it, if you're working with RLF, you're on your own. Nice!
That is, unless you spend $30 on Nick's LUTs, which is my personal solution and it is the only one or two sources I can trust to create mission critical LUT.
 
If you install Autodesk Smoke 2013, it comes with a folder full of LUTs, with names like LC3DL_Kodak2383_log2hd_ConstLclip.3dl (for example). It seems some of these would be very useful for REDLogFilm if they were in a different format. Does anyone know how to convert a .3dl file to something Resolve can handle? Someone please let me know if that is an absurd request or if it's possible.
I did notice Lustre's 3D LUTs use 17 intervals, while Davinci's use 33. I tried converting one myself in a text editor, but it didn't work. I just took the 3dl file, divided all numbers by 4096 to put them on a scale of 0 through 1, and formatted it the same as one of Davinci's cube LUTs. The result shows up in Resolve, but doesn't do anything when enabled. This makes me think something is different about the line order, but I don't know.
 
Elliott Balsley said:
If you install Autodesk Smoke 2013, it comes with a folder full of LUTs, with names like LC3DL_Kodak2383_log2hd_ConstLclip.3dl (for example). It seems some of these would be very useful for REDLogFilm if they were in a different format. Does anyone know how to convert a .3dl file to something Resolve can handle? Someone please let me know if that is an absurd request or if it's possible.
I did notice Lustre's 3D LUTs use 17 intervals, while Davinci's use 33. I tried converting one myself in a text editor, but it didn't work. I just took the 3dl file, divided all numbers by 4096 to put them on a scale of 0 through 1, and formatted it the same as one of Davinci's cube LUTs. The result shows up in Resolve, but doesn't do anything when enabled. This makes me think something is different about the line order, but I don't know.
Click to expand...


Juan could apparently do just that. check the previous page.

But is this not somthing for the BM guys to trickle? Importing 3dl files should be a no brainer for them to implement. Red should implement it to, think a lot of people would like to see kodak print lut's on their touch screens. There is even INR, bleach bypass and other lab luts available from the kodak cineon package that would be killer to get in camera.
 
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Using After Effects and Resolve It's pretty easy to convert the .3dl LUTS into something Resolve reads.

1. Drop the trim_lut0.dpx file that comes with resolve into a new composition in After Effects. Make sure it's 1080p and set your color depth to 16 bits per channel.

2. Select the layer, go to Effect > Utility > Apply Color LUT and then select the desired LUT.

3. Add the comp to the render que. Select DPX/Cineon Sequence as the format. Click Format Options and then Click on Cineon Settings and then select the Full Range Preset. Make sure the units are set to 16-BPC.

4. Render out the DPX. In Resolve create a new 1080p timeline and add the DPX to the timeline.

5. Find the Generate LUT from Current Grade at the bottom of Project Settings > Look Up Tables. Give the LUT a name and then click Generate LUT.

6. There is no step 6! That should be all you need to do!
 
Juan, I don't know if your method is easier than mine, but this is the way I did it and it works like a charm. 6 steps.

Load your video or image onto a program that can run LUT buddy free plugin. (in my case I am using After Effects).

1) load one instance of LUT buddy plugin, and set it up to "draw pattern 3D 16". (or 3d 32, if its the case)

2) Go to Menu-->Effects-->Utilities-->Apply Color LUT. Choose the LUT you want to convert, and make sure is right below the LUT buddy plugin. If it doesn't, drag it up or down.

3) Load a basic color correction like Hue/Saturation. Again, right below the Apply color LUT effect.

4) Load another instance of LUT buddy plugin, this time set it up to "read pattern 3D 16". make sure is below the others.

5) This is an important step. Move any control on the Hue/Sat effect, and return the control to its original position. Also, turn off-on the "apply LUT effect. This way the program is registering the changes made.

6) Finally click on options on the last instance of LUT buddy plugin, (the one that was set to "read pattern") and export your LUT in the format of your choice.



Edit: The reason why I am using both "LUT buddy plugin" and "Apply color LUT" effect from after effects, both at the same time is because, LUT buddy doesn't read some formats like LC3DL, but Apply color LUT does. Depending of what format you are using, you can get rid completely of the Apply color LUT effect and skip step 2.

Keep this in mind: LUT buddy can make and export a LUT of whatever color grading you have made to the image as long as you do it in realtime, so it can register the changes.



http://twitter.com/pm709
 
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Nick Shaw said:
I do not believe this is correct. Although the Alexa LUT generator also produces .dat files when you request a resolve LUT. I believe that the .dat LUT format was the one used by Resolve before Blackmagic. Now if you look in the Resolve LUT folder you see .cube, .ilut and .olut (as well as 1D shaper LUTs).
Click to expand...

Nick,

cineSpace (which BTW is the folder named by Resolve when you install it, and where it places the LUTs it provides) produces ".dat" for Resolve, not ".cube". Also, the difference between the old ($200K) and new ($1K) Resolve LUTs goes deeply than the LUT's extension. Per BMD Resolve Customer Service, the order of the coordinates for R, G and B are different, hence unusable by the new Resolve system.

Respectfully,
 
Juan Melara said:
Using After Effects and Resolve It's pretty easy to convert the .3dl LUTS into something Resolve reads.

1. Drop the trim_lut0.dpx file that comes with resolve into a new composition in After Effects. Make sure it's 1080p and set your color depth to 16 bits per channel.

2. Select the layer, go to Effect > Utility > Apply Color LUT and then select the desired LUT.

3. Add the comp to the render que. Select DPX/Cineon Sequence as the format. Click Format Options and then Click on Cineon Settings and then select the Full Range Preset. Make sure the units are set to 16-BPC.

4. Render out the DPX. In Resolve create a new 1080p timeline and add the DPX to the timeline.

5. Find the Generate LUT from Current Grade at the bottom of Project Settings > Look Up Tables. Give the LUT a name and then click Generate LUT.

6. There is no step 6! That should be all you need to do!
Click to expand...

Thanks Juan, this worked like a charm. Really liking what the Kodak does with shadows and skin tone.
 
Luis Otero said:
cineSpace (which BTW is the folder named by Resolve when you install it, and where it places the LUTs it provides) produces ".dat" for Resolve, not ".cube". Also, the difference between the old ($200K) and new ($1K) Resolve LUTs goes deeply than the LUT's extension. Per BMD Resolve Customer Service, the order of the coordinates for R, G and B are different, hence unusable by the new Resolve system.
Click to expand...

Thanks

I stand corrected.

I'm sure when I first tested, I could not get .dat LUTs to show up in Resolve (8 at the time) but now (using 9) I am seeing the .dat LUTs as well as the .cube ones.
 
Nick Shaw said:
Thanks

I stand corrected.

I'm sure when I first tested, I could not get .dat LUTs to show up in Resolve (8 at the time) but now (using 9) I am seeing the .dat LUTs as well as the .cube ones.
Click to expand...

Nick,

Also, the cineSpace "bit" setting for Resolve must be set at 5. That will render a ".dat" LUT of 33 point per side, which is what you want. If some other value is entered for such setting, you will get artifacts, ranging from unreadable to SEVERE image posterization, leaning more toward green.

But, to be perfectly honest, I do own and use your LUTs. I found them extremely reliable for critical work that will go to DCP or film-out.
 
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