Future Slums Kit light doesn't shine through the windows in Blender | Voters

Future Slums Kit light doesn't shine through the windows in Blender

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Walter Stoehr

No Light will shine trough them. Unfortunately I can't make it work by bypassing the top section and detaching the roughness node. What to do? I am using blender 3.1

Created by Steven Ibale

April 3, 2023

Maxx Burman

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closed

Travis Szabo

For now, I've gone ahead and recorded a quick 1 minute video showing how you could adjust the material to work.
https://www.youtube.com/watch?v=A15T7eyI_LY
You could also copy from the attached picture.

Walter Stoehr

Travis Szabo: Hey Travis, Thank you so much. I will try this. Will there be an update on those kits for blender, so that this issue is fixed for all buildings from the get go?

Travis Szabo

Hey there Walter, I have a few ides what it could be, but I need to know first whether you're using Eevee or Cycles.

Walter Stoehr

Travis Szabo: Hey Travis, I am using Cycles (Feauture Set: Experimental).

Travis Szabo

Walter Stoehr: Apologies for the delay, I'm working on getting a proper solution. It appears to be material related issue that's fairly common in Blender.
Could you try mixing the shader with a transparent node. Factor should be a Lightpath node's [Is Shadow Ray] output. 
This is also a common trick to optimize glass by making light ignore it entirely. [I've attached a picture of a simple node setup]
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Another solution would be to set the Transmission to 1 and play with the IOR. The more realistic way, but that can be a bit tricky to get perfect and can add a lot to render time.