Critical Embree issues with the newest Vray version

[PIXELBOX_SRO]

Hello,

we are having counts of issues accross our scenes lately with the newest vray version.
The problem appears either when the scene has a lot of displacement or is memory heavy.

Whenever the calculation gets to Embree part, it hangs for quite a while and then it says the rendergin is finished. No errors in the log.

When i switch back to 5.1.004 everythign works well again.

This problem happens sometimes even when 30% memory is in use. Limiting dynamic memory doesnt do a thing. Looks like vray completely stopped offloading to drive when the memory gets to the ram limit.

Something must have happened to embree between the versions and it for the bad thing as it crippled even our most memory equipped machines with 256GB "finishing" render after embree calculation.

Any idea what coudl be wrong?

Thanks
M

[yavor.rubenov]

Hello,

It would be best to get a problem scene that renders fine in 5.1 and fails in 5.2 to our support. There are many changes that happened in the update so it is hard to say what the problem is. Indeed there were updates to Embree but also to displacement too. For example 5.2 supports blending material displacement used in V-Ray Blend material's sub materials..

Best regards,
Yavor