VRay VFB LUT export

[Dman3d]

Ok so I have set up corrections in the VFB and saved as a LUT and cannot read it anywhere. What LUT format is it making?
I would like to convert and load into AE or other packages.

[georgi.zhekov]

In the save dialog you can choose .cube format which is quite universal.

[Dman3d]

That is what I am saving, I cannot read it in photoshop or AE. Will look for a converter or see what other loading methods there are.

[Morne]

That is what I am saving, I cannot read it in photoshop or AE. Will look for a converter or see what other loading methods there are.

Are you sure you're saving it correctly to a CUBE file, and then loading it correctly as a 3DLUT file?
A simple tests works just fine for me in PS

How are you adding the LUT in PS?

[Dman3d]

Are you sure you're saving it correctly to a CUBE file, and then loading it correctly as a 3DLUT file?
A simple tests works just fine for me in PS

How are you adding the LUT in PS?

Yes the .cube format and loading via color lookup adjustment layer, tried AE also.

[Morne]

Hmmm yes something does seem fishy here. With further tests, it seems the LUT gets loaded, but somehow it doesn't duplicate what I have in VFB, it looses saturation
Doing some more tests...

But you're saying, in your tests it has no effect at all?

[Dman3d]

If the no options are on the in the color corrections and I save it will load in pshop in a corrections layer, if anything is on and I save Photoshop or AE wont load it at all. Throwing the error "Could not parse the 3D LUT because of a problem using the Adobe Color Engine."

I am fairly certain I am doing something wrong somewhere.

[Morne]

Strange, it loads for me, although still with a different result as the VFB. Also tried now in Fusion and I get the same result as in PS. Maybe there's something up with the way the CUBE file is saved.

[Morne]

I think there may be something wrong with the way the VFB saves the LUT, if I load the LUT back into the VFB, I get the same result as what I got in PS and Fusion. So the CUBE file is being read correctly it would appear. It stands to reason then that it's not being saved correctly in the 1st place.

Perhaps there's some kind of limitation of what can be saved into the CUBE from the VFB. When I have more time I'll go one by one down the list of corrections, enable them and save separate CUBE files, and see if that makes a difference. But that won't be until somewhere next week.

[Dman3d]

Tried mixing a few things, no luck still

[Dman3d]

ugh, now saving 32 bit images and applying works. Must be it.

[^Lele^]

it is, indeed.

[Dman3d]

yeah for some reason float did not occur to me. Have to forgive a super "duh" moment.