Is there a setting to have an invisible ghost light behind a glass panel ?

Hello,
I'm using the latest Daz public beta to test ghost lights and I don't understand why glass are making ghost lights visibles, as shown on the test renders attached to this message.
The window on the rear is fully open:
The plane is using the glass shader included with Daz Studio:
And the sphere was created following the short video published by Daz when they released Daz 4.22:
(I played a bit with iRay Ghost Light Factor, but it doesn't change the visibility of the light behind the glass, just the color: black if IGLF > 1, white otherwise)
Is there something I'm missing or an explanation I should know ?
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Ghost_Light_Glass_01.png
800 x 800 - 196K
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Ghost_Light_Glass_02.png
800 x 800 - 231K
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Ghost_Light_Glass_03.jpg
1044 x 885 - 107K
Post edited by Elor on
Comments
You need to set Refraction Weight on its Surface to 1.0
Thank you, I'll try later today