Hello everybody. When I have an object with a glass shader, it looks like glass. However, when I look at one face with a heavy angle, the glass is 100% reflective. I don’t want that. Can someone explain to me why this is happening and how to avoid it? thanks…
Well I can explain it’s happening because this is how real light works, light behaves in interesting ways when it goes between two different mediums. In fact if it didn’t work this way fibre optic data transmission wouldn’t be possible.
As for how to resolve it… someone else will have to answer that one.
Cycles’ glass shader has a built-in Fresnel effect, which is causing the phenomenon you observed.
If you don’t want that, you have to skip the Glass shader and build your own Glossy/Refraction mix shader which gives you more control over the behaviour at glancing angles.