VRayDenoiser complete black unless I uncheck the hardware acceleration

[savage309]

3.40.02 is already in the downloads section. The black denoise result that happened on some of the machines is fixed. No need for workarounds when using it. Sorry for the troubles.

Best,
Blago.

[PIXELBOX_SRO]

hmmm iam using the latest vray and i still get black denoiser element unless i uncheck the HW acceleration.
GTX TITAN on board

furthermore, switcing into the denoiser element makes the progressive rendering stop/pause.
when i switch back to the RGB element it takes a while before it starts computing again.

[jstrob]

Same thing for me. I installed 3.40.02 on my farm and all the denoiser frames are black. Note that the same computer that renders them correctly locally renders them black when participating to the network render.

[savage309]

hmmm iam using the latest vray and i still get black denoiser element unless i uncheck the HW acceleration.
GTX TITAN on board

furthermore, switcing into the denoiser element makes the progressive rendering stop/pause.
when i switch back to the RGB element it takes a while before it starts computing again.

Is this with V-Ray 3.40.02 ? Can you set the verbose level from the V-Ray settings to 4 and paste / screenshot the V-Ray log ?

@jstrob It works with hardware acceleration off, right ? Do you denoise using vdenoise.exe ? Can you share the log as well ?

Thanks.

[gregvfx]

Hi,

I didn't want to start a new thread for that but when you leave bloom and glare effects on before rendering, the denoise is computed but doesn't replace the rgb...
The workaround is to uncheck before rendering and then check, lucky the pass useful for it are rendered somehow by the denoiser...

[Svetlozar Draganov]

Hi,

I didn't want to start a new thread for that but when you leave bloom and glare effects on before rendering, the denoise is computed but doesn't replace the rgb...
The workaround is to uncheck before rendering and then check, lucky the pass useful for it are rendered somehow by the denoiser...

I manage to reproduce that and will add it into our bug-tracking system.

[iancamarillo]

when i render to exr and open in photoshop, unless I turn off the denoise layers, my RGB layer has black objects. I have no idea how this is happening because RGB is at the top of the layers

[Svetlozar Draganov]

Would it be possible to send that EXR for investigation, or if possible to to open it in another application like Fusion/Nuke etc and see if the issue is there?