Negative lights

[ronalmb]

Hello Softimage Community,
i'm wondering how to set up a negative light in XSI, I can't believe it's not possible.
And how can I make a colored shadow?

thanks

[richard-sher]

i'm wondering how to set up a negative light in XSI
Give your light a negative Color, Value or Luminance value. (Any one will work.)
I find that using the Luminance value is the easiest.

how can I make a colored shadow?
Connect a color correction node to the shadow input of your material node.
Adjust the color till you get what you like.

[atyss]

There is another way of making colored shadows, if you want very localized shadow areas.

Create an object that will cast shadow.
In the object's visibility options, turn off primary and secondary rays.
Put a constant material on the object. Set the color as the shadow color you want, and turn up put transparency.
Here you go!

Hope this helps
Salutations - Cheers
Bernard Lebel