reflectivity on a black material covered with a clear one

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lighting_freak
Posts: 176
Joined: Thu Jan 18, 2018 6:02 pm

reflectivity on a black material covered with a clear one

Post by lighting_freak » Sun May 10, 2020 8:20 pm

Hi all,

just a quick question. How does luxcorerender handle the refelctivity of a fresnel glossy black material that is covered with a clear one?
This *.blend file should show the principle:
Intermediate.blend
(723.95 KiB) Downloaded 3 times
Usually it should be like this for light inicidence normal to the surface:
For the clear IOR = 1.492 vs. air IOR = 1 it's around 4%.
For the black glossy IOR =1.584 vs. air IOR = 1 it's around 5%.
For the intermediate black glossy vs. clear it's around 0.1%.

Does luxcorerender treat this situation like that?
Thanks in advance.

BR
OS - Windows 7 X64
CPU - Intel CORE i7
GPU1 - Variants of notebook card from nVidia
GPU2 - Variants of notebook onboard card from Intel
Lux - Latest possible relaease

lighting_freak
Posts: 176
Joined: Thu Jan 18, 2018 6:02 pm

Re: reflectivity on a black material covered with a clear one

Post by lighting_freak » Thu May 14, 2020 7:12 am

Hello,

I could really use some help here.
Thanks in advance.

BR
OS - Windows 7 X64
CPU - Intel CORE i7
GPU1 - Variants of notebook card from nVidia
GPU2 - Variants of notebook onboard card from Intel
Lux - Latest possible relaease

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