VFB Corrections being applied to renders?

[sideshowChris]

It used to be that the corrections tab of the VFB was independent to the actual batch rendering of frames.

ie I could preview a darker exposure (-3) in the VFB, but the actual rendered frames would not have this correction applied.

Now when I submit the batch render with the Exposure correction turned on and saved with the scene, the rendered output has this correction baked in.

Is this a bug or a feature? The change in behaviour has lead to some very annoying results.

[vlado]

The corrections will be applied if you save to an 8-bit file format, but not to OpenEXR files. You can turn this off using the environment variable VRAY_WRITE_COLOR_CORRECTIONS=0

Best regards,
Vlado

[Dan Andersen]

Doesn't work for me, but I think this is logged as a bug in your tracker already? Or has it been fixed in a very recent nightly?

[sideshowChris]

Hi Valdo, I can confirm that the colour corrections ARE being applied to openEXR files. This may be a bug?

[yolov]

Yes, it is and we're working on it. You can set this environment variable in the meantime: VRAY_WRITE_COLOR_CORRECTIONS=0

[sideshowChris]

Hi Alex - that environment variable is not working for us.

As in, with it set to 0, the corrections are still being baked into the batch rendered exrs.

Do you have an eta on a fix?

[ivaylo.ivanov]

VRAY_WRITE_COLOR_CORRECTIONS should work if set correctly.

[Dan Andersen]

VRAY_WRITE_COLOR_CORRECTIONS should work if set correctly.

Doesn't work for me either, like I reported in the beta forum (thread title: "VFB exposure baked into renders")

[yolov]

It seems to be broken indeed for the single channel exr files. We'll fix it asap.

[ivaylo.ivanov]

Yep, it was so broken, even VRAY_WRITE_COLOR_CORRECTIONS didn't work. Should be fixed in the next 3.30/3.35 nightly.