Group Lights not turning Off

[CharlyRT]

Hello There, I have recently installed the newest release for Max 2023, Im using a lamp group with a light and everything works ok but its not turning off, I can change color, intensity, use color map on the original group, but the On/Off Switch doesn't work, is this normal behaivior?

[Paul Roberts]

Thanks for reporting, I can reproduce this issue here. I'll pass it on to our development team.

Cheers,
Paul

[CharlyRT]

Hopely I could get access to that fix, my maintenance plan will expire soon 

[Paul Roberts]

In further testing we've discovered the same issue is present in V-Ray instancer which means it's a V-Ray issue rather than specific to Forest Pack. We can't do a lot in these cases, it's something that Chaos will need to fix.

Cheers,
Paul

[CharlyRT]

  Ufff, well I can relax a little knowing that there are a couple of things that Chaos has to fix with this VrayInstancer, the Cryptomatte_Material in hidden objects and this.
Thanks Paul!!!

[Paul Roberts]

No worries. I've emailed Chaos to let them know.

[Paul Roberts]

Hi,

Further to our discussion, Chaos has got back to me. It turns out the behaviour is deliberate because internally in V-Ray, a  disabled (turned off) light = hidden/non-renderable light. But most of the time you want the source object to be hidden when instancing, so they kept the logic from the case with hidden geometry.

As a workaround, it's suggested to tweak the intensity multiplier of the light instead.

Hope that helps to clarify things
Paul

[CharlyRT]

Hi Paul, thanks for the quick reply, I have tested this issue with different versions and here are my ressults:

-Vray 5.2.3 + ForestPack 7.4.1
Doesnt Work

-Vray 5.2.2 + ForestPack 7.4.1
Perfection!!!

-Vray 5.2.3 + ForestPack 7.3.1
Doesnt Work

-Vray 5.2.2 + ForestPack 7.3.1
Perfection!!!

So.... as Chaos said if this is deliberate, it only ocurrs in the latest build :'( it didnt happen before  . Hope this issue with Vrayinstancer could be solved