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How to make Area Light totally invisible to GI ?

Posted: Mon Feb 14, 2022 1:59 am
by SSmolak
Hello,

Even if I put all options in Octane Area light to be invisible to camera, shadow etc it is still visible to GI generated by Octane Sky for example. If such Area Light plate is 5cm above ground, ground is still obscured by this Area Light even if I disable this Light ID in ground Octane Object Tag. Octane Sky still can't pass throught this Area Light object - there is still visible GI shadow under this light on the ground.

Re: How to make Area Light totally invisible to GI ?

Posted: Mon Feb 14, 2022 8:19 am
by bepeg4d
Hi,
have you tried to set the Opacity to 0 in the Light tag?
D0C52684-BE2F-45FB-805C-B6CDE16326A5.jpeg
ciao,
Beppe

Re: How to make Area Light totally invisible to GI ?

Posted: Mon Feb 14, 2022 10:21 am
by SSmolak
Yes but after that lighting from that light disapear too

Re: How to make Area Light totally invisible to GI ?

Posted: Tue Feb 15, 2022 7:21 am
by bepeg4d
Are you sure?
470EF397-1054-4784-8978-03A48E90B47A.jpeg
ciao,
Beppe

Re: How to make Area Light totally invisible to GI ?

Posted: Tue Feb 15, 2022 7:25 am
by SSmolak
you dont have Octane Sky in scene. If you will have it - you will have dark area under area light :) Or light from that area light is gone

Re: How to make Area Light totally invisible to GI ?

Posted: Tue Feb 15, 2022 7:50 am
by bepeg4d
Again, are you sure?
HDRI Environment
HDRI Environment
DayLight Environment
DayLight Environment
ciao,
Beppe

Re: How to make Area Light totally invisible to GI ?

Posted: Tue Feb 15, 2022 8:09 am
by SSmolak
there is still indirect light shadow under area light

Re: How to make Area Light totally invisible to GI ?

Posted: Tue Feb 15, 2022 8:30 am
by SSmolak
file

If you turn off opacity lighting from light is gone

Re: How to make Area Light totally invisible to GI ?

Posted: Wed Feb 16, 2022 1:07 am
by SSmolak
ok it works as you said but with transparent emission turned on which I have disabled. Thank you !

Re: How to make Area Light totally invisible to GI ?

Posted: Wed Feb 16, 2022 7:18 am
by bepeg4d
Ok, great to hear you have solved.

ciao,
Beppe