[Solved] Missing lighting in reflection

Blender (Export script developed by yoyoz; Integrated Plugin developed by JimStar)
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davorin
Licensed Customer
Posts: 150
Joined: Tue Oct 09, 2018 1:17 pm

Hello

Doing a bathroom scene with fluid animation for a product presentation..and as it involves indirect lighting I need to use pathtrace for rendering..

In the scene I have a mirror with a light source at the back...which illuminates the concrete wall around it...but in the reflection in the shower glass this lighting effect is totally missing..only the light source itself can been seen...

Is there a way around this render error?
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missing_reflection.png
Last edited by davorin on Sun Dec 02, 2018 4:00 pm, edited 1 time in total.
Debian 10.2 on AMD 1950X, 64GB RAM, 2 * RTX2080Ti
Octane Blender Studio 2020.1-XB3-21.3
Blender 2.83 E_Cycles
J.C
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Joined: Thu May 13, 2010 6:35 pm
Location: Wrocław

What is missing in the shower glass reflection?
Glass has lower reflection IOR compared to mirror surfaces so the reflection will always more subtle.
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
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davorin
Licensed Customer
Posts: 150
Joined: Tue Oct 09, 2018 1:17 pm

At the front the light illuminates the concrete wall...in the reflection it does not illuminate the wall...only the outline of the light source is lit...
Debian 10.2 on AMD 1950X, 64GB RAM, 2 * RTX2080Ti
Octane Blender Studio 2020.1-XB3-21.3
Blender 2.83 E_Cycles
davorin
Licensed Customer
Posts: 150
Joined: Tue Oct 09, 2018 1:17 pm

Seems like a false alarm (o;

When I bump up the light power really high I can also see the lighting of the wall in the reflection...

Guess it needs more than 10k samples to see something..
Debian 10.2 on AMD 1950X, 64GB RAM, 2 * RTX2080Ti
Octane Blender Studio 2020.1-XB3-21.3
Blender 2.83 E_Cycles
J.C
Licensed Customer
Posts: 1857
Joined: Thu May 13, 2010 6:35 pm
Location: Wrocław

It is visible but very subtle. You need to increase IOR to make it more visible.
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
My Behance portfolio, Blender plugin FB support group
J.C
Licensed Customer
Posts: 1857
Joined: Thu May 13, 2010 6:35 pm
Location: Wrocław

reflection.png
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
My Behance portfolio, Blender plugin FB support group
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