Really curious about what’s going on with my glass, and what happens to it when applying the glass material in the node setup. This happens to my glass all the time, where instead of being chill it’s just making the image weird. Thought maybe it was thickness, but adding a solidify modifier makes no difference. I understand that glass refracts and is a giant lens, but I’m really wanting to know how to make it physically accurate, as you can imagine.
Here’s the .blend file for the fun of it, and in the screenshot below, the closest window pane is removed to show the huge difference in the way it displays.
Well that’s interesting! Thanks for sharing. I’m kinda confused now because all the tutorials I see are specific about using the “correct” IOR of glass. Should I in fact be not doing this, and always having it super close to 1?
But when you have glass objects that are planes, and their thickness is small in relation to the camera (as normally are in architectural renderings), the refraction is negligible and can be replaced with a simple transparent closure.
If you want the refraction, then you need to model the windows as thin boxes, with both a front and backface, so that the refracted ray can be ‘corrected’ after hitting the rear surface of the object. Otherwise, the renderer will ‘think’ the ray had entered into a glass but never got out, giving that ‘aquarium’ look.
