http://blog.chipp.com/the-perfect-green-screen-key-effect-in-photoshop/
Currently, KeyShot does not render a transparency channel. So, it's very difficult to composite something with transparency in it, say a light bulb, or a wine glass, over another object without using a backplate. In particular, I wanted to create a glowing lightbulb transparent PNG file I could use in different presentation and compositions.
So, I thought I'd share this tutorial I created on how to do this using Photoshop and KeyShot. Hope it helps others. :)
(http://www.widgetgadget.com/stuff/LightBulbGreenScreen.jpg)
awesome tutorial, I learned more that "just creating a Transparent Green Screen Effect"
thanks!
Good Tips!, I'm sure this technique will come in useful,