Exported .cube LUT doesn't match VFB color corrections

[Alex_M]

I’ve got some rendered 16-bit floating point .exr images and I want to apply the same color corrections as in the VFB to them. I saved a .cube file from the Color Corrections panel of the VFB and loaded it in Photoshop. Unfortunately I don’t get the same result as the images in the VFB. It looks dark and clamped. The same happens if I load the LUT in the VFB. Am I doing something wrong? Please check the images below.

[Morne]

Are you saving the EXR WITH the adjustements in image1?

Save the cube, then switch OFF all adjustments and save the EXR, now load the cube. Is that what you are doing?

[Alex_M]

@Morne

Are you saving the EXR WITH the adjustements in image1?

No, I’m not saving the EXR with any CC adjustments.

@Morne

Save the cube, then switch OFF all adjustments and save the EXR, now load the cube. Is that what you are doing?

Yes, that’s exactly what I do. Here’s what I get when I enable “Convert to log space before applying LUT”. A bit better but still nowhere near the original result:

Any ideas?

[svetlozar.draganov]

Would it be possible to send us the .vrimg file, the exported .cube file and save another global color correction file in .vccglb file format?
Looking forward to hearing from you.