With the leftmost button size selected.
Floor reflection unity.
You can probably use this for more things like wall mirrors and multiple reflections in the same scene but that would require quite a bit more scripting magic.
This approach is very hacky but you can use the new reflection probes in unity 5 to easily create realtime reflections for something like a reflective floor.
I like this opencv asset for unity.
Here s a quick tutorial on how to create realtime reflections in unity 5.
It may be possible to get some sort of sensors in the floor and then you re doing entirely custom things to read the data.
I suspect that this will be the hardest part of what you need to accomplish.
From my understanding you create a material push the smoothness to 1 and then place a reflection probe in the scene and all the materials smooth enough.
I can t wrap my head around how do you make a floor that reflect the environment and just the floor.
The effect descriptions on this page refer to the default effects found within the post processing stack.
Screen space reflection is a technique for reusing screen space data to calculate reflections.
More likely you d use a camera in the ceiling and probably want to process it with opencv.
Now i did realize that unity free has reflection probes.