I created a room (floor, table, walls and windows). For the windows' faces, I used a material with the following features (I list below only the features I changed, the remaining ones kept standard, ie, as they came):
- Principled BSDF
- Base color: white
- Specular: 0.15
- Roughness: 0
- IOR: 1.5
- Transmission: 1
- Emission strenght: 0
I checked Screen Space Reflection both in materials and in Eevee render.
Finally, I added a reference image with sky and trees to be the outside environment. However, I cannot see the image through the windows (either in material or render mode, independently of rendering in eevee or cycles).
My question is: How to make the windows material transparent so that I can see an image through it?