I was watching my girlfriend play the Sims 3 and the specular reflections on the fridge caught my eye. The shiny material appears to have diffuse interreflection from the rest of the room. I had her change the wallpaper a few times and the reflection certainly changes- leading me to believe its not baked in. Here are a few screenshots of said fridge. It might be a really simple or well known technique, but I am curious how this is done? I did notice that it will take a few frames for the fridges to respond to environment changes, my guess is some sort of realtime light probe at the fridges location?