VFB buggy

[ValeroStudio]

In the latest version, when a rendering is processing and I zoom in and out of a rendering, the VFB doesn't seem to keep up with it. you can see the buckets zooming in and out and then a lag on the image catching up.

[konstantin_chaos]

Hi Matthew,

I was able to reproduce this issue on my system but some of my collages are not able to.
In any case, I'll log it and we'll try to resolve it quickly.

Konstantin

[Peter.Chaushev]

Hello, Matthew,
Thank you for reporting this issue! We managed to reproduce this behavior in all systems, though it randomly varies when it occurs (not 100% reproducible).
Our devs are already aware of this display slowdown and are looking into improving the current behavior.
Please note that final image output is in no way affected!

Kind regards,
Peter

[konstantin_chaos]

Hi Matthew,

First of all, the lag you've described has not been caused by the update - It has been a long standing issue.
The good news is, we found a solution and will implement it in the next hotfix.

You can try the following to confirm it helps.
Open the Ruby console and execute the following script:

VRay::Context.active.scene['/SettingsOptions'][:misc_lowThreadPriority] = 2

Try rendering after that.

Note that this code will set a scene parameter which is not exposed in the UI.
The state of this option will be baked in the project and if you save and reopen the file, it will not reset.
This is safe considering that we will force-set the option to the new state in the next update anyways but I wanted to let you know what's going on in the back.
To reset the option to its default state use the same snippet but change the final value to 1

Regards,
Konstantin