If the LC pass of 1.5 run at low CPU usage only ...

[Micha_cg]

... than it helps to minimize the vramebuffer and the speed jumps from 16%..50% to 100% again. So far my current workaround for this bug (reported).

Micha

[Micha_cg]

Same for the IM pass, the frame buffer needs to be minimized for full speed.

[Svetlozar Draganov]

Do you have any scene or setup that uses less than 100% CPU when Vray calculates GI ?
I've done some tests with Irradiance Map , and Light Cache with VFB ON - but my CPU is constantly on 100%.

[Micha_cg]

I send two times an email "LC pass very slow if framebuffer isn't minimized" with example scene. Could you check the spam folder please? I don't got an automatic confirmation email for this.

[Svetlozar Draganov]

Hello Micha,

I was able to test your scene now , and I've got the same result.
When the VFB is maximized my CPU was on 70% , but when I minimized it a 100% was used.

Thank you very much for the feedback.

[Micha_cg]

How much cores has your machine? Joe is working on that bug at the moment. You are in contact with him?

[Svetlozar Draganov]

I have 4 cores on my machine - and LC was working on 70% CPU.