One-Way Mirror Material

[grungebob]

Hey All,

 

Got a real interesting problem... I am looking around on doing a one-way mirror vray material and finding nothing. Normally on my views, if I'm on the mirror side, I would just put a mirror material; and if I was on the viewable side, I would use a dark glass.

 

Here's the problem, in my scene... you are standing on the mirrored side of the one-way mirror that extends 6ft across a 10ft opening... In the 4 foot opening there's a mirror on the wall reflecting views through the see-through side of the one-way mirror. So does anyone know how to accomplish a true one-way mirror material?

 

Thanks ahead,

Chris

[Corey Beaulieu]

Why not just render it as a mirror, keep it in your frame buffer, switch the material to glass and then render a region where you would see the back side. this way all elements and the main pass will be a single file and you can composite as a normal image.

 

I'm sure there is a way to accomplish this in one go, but maybe not. I just figure that with the testing that would likely be involved, this was sure bet with no fuss.

[grungebob]

Yeah... it will also be great to get it correct, for example for a walk-through rendering. I was already doing something similar to that for right now.

[erickdt]

I might try a Vray double sided material or you could select one side of your one way mirrror geometry via. edit mesh, assign your mirror material, then select the other side and assign the glass material.

 

E

[Ismael]

Example of 1 way glass mirror: http://www.msnbc.msn.com/id/4326340/ns/world_news-weird_news/t/new-way-view-london-toilet/#.T-md9ZFGTpE

Talk and Techno talk:

http://blog.humancentric.com/building-a-one-way-mirror/

http://science.howstuffworks.com/question421.htm

http://urbanlegends.about.com/od/crime/a/two_way_mirror.htm

 

How about a single sided plane on close proximity to a tinted glass pane.

The single sided plane to have a highly reflective side and a refractive backside with IOR = 1.

The tint would most be visible from the non reflective side, of course depending on construction...