Every time I press the render button - vfb ocio corrections are canceled and the srgb is shown

[Paul Oblomov]

Very annoying. It also seems in the latest builds - rec709 does not work, only rec709 d60.

edit

reinstalled vray and rec709 works. speechless....

[Paul Oblomov]

Also - have you seen how different the phoenix is in the gpu and cpu versions when raytraced gi is on ?
Console created, V-Ray 5.20.20 for x64 from Jan 7 2022, 02:25:28

[Muhammed_Hamed]

Devs are looking into the first issue as we speak, ID for this issue is VMAX-11309 ,I will update the thread when it is solved
It is not a new issue, it first appeared in update 1

About the second issue, please make a separate thread in the GPU section or Phoenix one, I will follow along with the Phoenix team to see what is going on

Best,
Muhammed

[Muhammed_Hamed]

As a workaround you can get the same ACES sRGB look by using the filmic tonemap layer until this is fixed
You can get a similar look, I explain the workflow for this here

https://youtu.be/01KgYgvANmg?t=723

[piotrus3333]

Funny thing is as in 5.2 the sRGB was not working and I was using sRGB D60 - now in 5.2.1 it is the other way around.

edit: it was 5.2.1 and 5.2.2 actually.

[piotrus3333]

and again. back to sRGB D60. switching for a second to another ocio config file helps every now and then but I would at least expect some basic level of consistency from a bug.

[Muhammed_Hamed]

Thanks for the feedback as well

[georgi.zhekov]

Just leaving a note here for the Phoenix smoke and the Raytraced GI using V-Ray GPU if in the future anyone goes over this thread.

Currently the scattering bounces for the GI are limited internally when using V-Ray GPU. It is in the to do list to improve that and make it behave more like what you get with the CPU renders.

[piotrus3333]

ok - I have the OCIO config loaded via environment variables for few days now and so far no issues. even if I load the file manually.

[Muhammed_Hamed]

This is solved now in the latest nightly builds, it will be ported to stable soon.

Best,
Muhammed

[piotrus3333]

good news.
I obviously jinxed it as it misbehaves again..