I try to achieve that my lightrays are going through glass. With a volumetric container and without a glass in front of the light everything works fine. But if I make my glass visible the lightrays disappear.
So I searched a little bit and found this question. I tried it but with this technic I have the problem that it affects the color of the button light. Additionally I was not able to get the nice fade out effect from the question above. I think its because my cylinder has a hole and is not filled like in the example.
So how can I do this without (or at least only a little bit) affecting the lightcolor of my button and with a glass infront of the light of the button?
Is it possible to get the result from the firt picture but with a glass infront of the light source?