How can I make reflections for my windows?

I am creating a small City level where i have some skyscrapers. The windows in these skyscrapers should reflect the surroundings. Theres no static lighting. Am using Directional Light with Mobility set to movable.

My question is how can i make the reflections? For example suppose i have the below texture.

And i have the Reflection Mask Texture like this:

Can someone please post a material example of how to make the white area reflect the surroundings?

Use that mask to Lerp between 2 seperate roughness and metallic values?(one for the frame and the other for the windows - metallic 1, roughness 0 for reflective surface) You also need to enable SSR i think. Or you could use it as a material layer mask and make the windows transparent if you want to see the inside of the building and use a cubemap in the material for fake reflections. There is an example of that in Blueprint Examples demolet.

Thanks Mehmet. I’ll check it and report back soon.

Thanks mate! It worked. :slight_smile: