Penumbra and Omni Lights?

[Rangler]

My first experience with penumbra was similar to yours. When I added another light to the scene things started looking better. After many combintions for test lighting I found a 4 light setup that sort of works. Various small tweeks to environment and fill lights can produce unexpected results. Quick renders can vary slightly from final rendering.

http://home.attbi.com/~xth/penumbra.jpg

(Image has been cropped and scaled down 50%)

[Rangler]

You are right. The bulb lights do offer a non-funtioning penmubra setting. Appears to be an honest oversight.

The jiggly shadows on the above image were created using a klieg light as the main, two dark colored bulbs and one sun light for a bounce.

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