Participant

Answered

Blackmagic Gen 5 Lut not loading into Premiere Pro

Forum|Forum|4 years ago
March 28, 2021
8 replies
28937 views

Hello! I am trying to load the official "Blackmagic Gen 5 Film to Extended Video.cube" LUT into premiere pro and I'm getting an "unable to load selected file" error.

I pulled the LUT directly from Davinci Resolve's LUT folder. I've tried loading it through the creative and basic correction tabs of Lumetri and I get the same error each time, see attached screenshot. All of my other LUTS load fine. I tried contacting Blackmagic and they just told me to contact Adobe.

I'm using premiere pro 2020. Has anyone encountered this problem?

Correct answer douga98647900

I had this is issue too, just solved it...

If you use Davinci Resolve to select the Blackagic Gen 5 Film to Extended Video LUT in a node on a clip, then right click the clip in timeline on the color tab and click Generate LUT > 65 Point Cube, then it creates a LUT that seems to be exactly the same as the one provided in Resolve 17, except this generated lut cube file DOES load into Lumetri Color. [Sorry, Adobe doesn't allow attachments, but it was easy to do with Resolve!]

I like to apply the input lut (colour space transform) after doing some clip exposure/WB corrections. Yes I shoot BRAW and it's best to do this at the source level (in the BRAW settings), but sometimes the exposure/WB changes within the same clip, so it's not always possible. (Also, easier copying and pasting between clips for minor adjustments). And it's best to do those kind of adjustments before the input LUT is applied I believe, hence why I don't just change the BRAW Gamma to Extended Video.

H

HERD Media

Participant

Not sure if this is still an issue for anyone trying to load this lut into premerie pro's lumetri tab all you have to do is change the ".cube" extension to another format like ".3dl". So just rename the lut file to one of those other extensions with no spaces should work fine.

R Neil Haugen

Legend

That's ... interesting!

Neil

Everyone's mileage always varies ...

I

Im not ashamed

Participant

Hey when i click on my node i cant see were it says generate lut

R Neil Haugen

Legend

On the Color page in Resolve, with the Clips display showing. Right-click on a clip, and you then get options including "Generate LUT". With sup-options for how many points.

Neil

Everyone's mileage always varies ...

Richard van den Boogaard

Community Expert

Instead of applying the LUT as a separate file, I open the Source BRAW settings for the clip (the left pane in the Effect Controls panel), choose Revert Metadata and then select Apply LUT, and do some primary adjustments to entire shot.

Please be aware that this will change the settings of the entire clip, not merely the edited portions you use on your timeline. If you wish/need to do further adjustments, do not change the settings in this section, as it will affect all instances on your timeline. This is akin to using remote or local grades in Resolve. Instead, add another instance of Lumetri color to the clip and adjust from there.

Hope this helps.

M

Melanie12

Participant

Did you get the LUT inserted into Premiere in the meantime? I currently have the same problem.

R Neil Haugen

Legend

Are you following "douga" 's process of creating a LUT from a node in Resolve, and then placing that on your computer for Premiere to use?

Neil

Everyone's mileage always varies ...

D

douga98647900Correct answer

Participant

I had this is issue too, just solved it...

If you use Davinci Resolve to select the Blackagic Gen 5 Film to Extended Video LUT in a node on a clip, then right click the clip in timeline on the color tab and click Generate LUT > 65 Point Cube, then it creates a LUT that seems to be exactly the same as the one provided in Resolve 17, except this generated lut cube file DOES load into Lumetri Color. [Sorry, Adobe doesn't allow attachments, but it was easy to do with Resolve!]

I like to apply the input lut (colour space transform) after doing some clip exposure/WB corrections. Yes I shoot BRAW and it's best to do this at the source level (in the BRAW settings), but sometimes the exposure/WB changes within the same clip, so it's not always possible. (Also, easier copying and pasting between clips for minor adjustments). And it's best to do those kind of adjustments before the input LUT is applied I believe, hence why I don't just change the BRAW Gamma to Extended Video.

É

Ébel C.Ch.

Participant

An easier option even, open the LUT file using notepad. Change:

BMD_TITLE "Gen 5 Film to Extended Video"
to

TITLE "Gen 5 Film to Extended Video"

You can also just delete the "TITLE" line at all, is not necessary, but if you want to keep the info deleting "BMD_" is enough. Most of the times, Blackmagic native LUTs include (useless?) things in the header, open the file using notepad and delete anything that has no # at the beginning of the line and doesn't indicate size, example:

# DaVinci Resolve Cube (3D LUT).
#
#Blackmagic 4K Film to Rec709 v3
#Blackmagic 4K Film to Rec709 using v3 Color Science.
#Soft-Clipped

BMD_TITLE "Blackmagic 4K Film to Rec709 v3"

LUT_3D_SIZE 33
LUT_3D_INPUT_RANGE 0.0000000000 1.0000000000

You can turn it into this:

# DaVinci Resolve Cube (3D LUT).
#
#Blackmagic 4K Film to Rec709 v3
#Blackmagic 4K Film to Rec709 using v3 Color Science.
#Soft-Clipped

TITLE "Blackmagic 4K Film to Rec709 v3"

LUT_3D_SIZE 33

Or you even can leave it just like this:

LUT_3D_SIZE 33

I've read here by francis-crossman that LUT_3D_INPUT_RANGE 0.0000000000 1.0000000000 can have other values that are not the standard for luts (0.0 to 1.0) and those have to be indicated using this system (repeating the number 3 times):

DOMAIN_MIN 0.0 0.0 0.0

DOMAIN_MAX 1.0 1.0 1.0

Yet I have to say I haven't yet found a LUT that uses different domains than 0.0 to 1.0, so deleting everything and letting just the LUT size seems to work fine for BlackMagic Design camera LUTs preinstalled in DaVinci Resolve.

É

Ébel C.Ch.

Participant

Thanks! When I get to the shop, gonna be trying that out first thing!

Neil

Hope it helps. There's also another issue with LUTs in Adobe Premiere that I haven't seen giving problem to other users but may help someone. Maybe some are even having the problem but they don't realize and think they're using different LUTs when they're loading the same one twice.

When there are many LUTs in a folder and the names of those LUTs are long enough, Premiere will load them incorrectly. For example right now you can copy paste all Blackmagic Design LUTs in your LUTs>Technical folder to use in Premiere. Many LUTs have very similar names, for example:

Blackmagic Cinema Camera Film to Rec709.cube
Blackmagic Cinema Camera Film to Rec709 v2.cube

When you select them in Lumetri, Premiere will always chose one of them (the first one in the list I think). So you probably will choose one, then the other and say "Hey, they're not that different, probably some minor fix and they just let the old one for compatibility...". Wrong, you're loading the same one both times (proof of that is that if you look at the name after selecting it, no matter which one you choose it will always show the name of only one of them).

Way to fix it: rename the file including something close to the beginning of the name. For example:

Blackmagic v2 Cinema Camera Film to Rec709 v2.cube
Blackmagic v1 Cinema Camera Film to Rec709.cube

That way they will load correctly. It happens also with other LUTs, not only Blackmagic. I discovered it with these, in fact:

SLog3SGamut3.CineToLC-709.cube
SLog3SGamut3.CineToLC-709TypeA.cube

It took me some time to realize they were actually quite different, after I realized it wasn't loading correctly when I have them both in the same folder so I renamed them:

SLog3SGamut3.1.CineToLC-709.cube
SLog3SGamut3.2.CineToLC-709TypeA.cube

So anyone having problems with LUTs in Premiere check those 2 things:

Is the info in the header of the .cube file when opened using notepad correct?
Do you have many LUTs with long names that match the name for like the first 12 characters? (I haven't check exactly the moment it's problematic, but it's close to that)

Also, note that whenever you make any change in LUTs content of filename, you have to restart Premiere Pro to changes to make effect, in both of those cases.

R Neil Haugen

Legend

Weird. Wonder what they used to create that LUT? There's a ton of variables in what can create LUTs and what options/choices they use.

I shoot a lot of BRAW, and work with the Autokroma plugin because the freebie from BlackMagic is worth exactly what you paid for it ... nothing. And the conversion from 'film' (which is actually their log format) to video is handled within the plugin itself.

So ... what's your workflow here? Curious.

Neil

Everyone's mileage always varies ...

Ann Bens

Community Expert

Read this doc on how to install luts:
FAQ: Premiere Pro Lumetri Color Custom LUT directory.

N

Nicolas Palmier

Participating Frequently

Hi

Thx for answer.
But, i know how use a lut on premiere pro...
Just this lut : "Blackmagic Gen 5 Film to Extended Video.cube" don't work
Why ?
All my other lut work on resolve and premeire pro. exept this one ...

Thx you for help

N

Nicolas Palmier

Participating Frequently

Hi,

I have the same issue .... That dispointing ...
Have find a other lut ?

I hope Adobe can wen help us.
Thx