I'm sure my solution is not anyway near as elegent as Tom's, but this is my "kludged" version.
Well, my original theory turned out to be a bust. I had assumed that a plane with an emitter shader to it would be invisible or transparent when viewed from behind. With my first experiment, I found out that that assumption was not true. So, what I ended up doing was creating a whole array of planes 170 units wide (the width of the screen) but only .01 units high. This way it's practically invisible from the front of the screen.
I cloned this plane down the front of the screen (100 in total), and faced them towards the screen - just a little ways from it. I gave them an emitter shader with a 50 W intensity. For the picture, I used the diffuse shader and copied the image in the reflection slot (and set it to .05). The image below is the result. (rendered for only 15 minutes)
So, I've got 100 emitters
, no dieletrics, no ........ but a bunch of fakeing.
Like I said, it's probably not the easiest way to achieve the result, but it does work. Do I get any points for cheating!
"Skill without imagination is craftsmanship and gives us many useful objects such as wickerwork picnic baskets. Imagination without skill gives us modern art." - Tom Stoppard
My modern art gallery at:
http://nws.carbonmade.com/
- By choo-chee
- By Andreas Hopf