Making inside of glass Both of the yellow spheres are exactly identical, but the one in the glass cube looks more bleached than the right one.
Which variables should I be looking at to make the color of the left sphere look as vivid as the right one?
Thank you all always!
The trick here seems to be environment reflection.
When I use World with simple white color seem to be fine.


Doesn't matter if object is solid glass volume or a shell.
Alternatively you can place black Plane behind Camera so there are not lights reflected in front surfaces.