RE: Inverse Lights

Date : Thu, 7 Jun 2007 16:56:33 -0400
To : <XSI(at)Softimage.COM>
From : Michaël Bentitou <michaelb(at)hybride.com>
Subject : RE: Inverse Lights
Thanks both of you for the help - however it seems my brain is running
on numb today as I can't get it to work with your exact steps. 

I had to mix both 'recipes' to make it behave correctly so I now have:

ScalarState:ChangeRange:MixerGradient:Softlight

Francois, I can't get it to work without the ChangeRange - does that
makes sense?

Graham, the part with layering texture and volume seems really nice,
I'll have to try this out ;-) 

Thanks,
-=mb.



> -----Original Message-----
> From: Graham D Clark [mailto:mailgrahamdclark(at)gmail.com]
> Sent: Thursday, June 07, 2007 2:32 PM
> To: XSI(at)Softimage.COM
> Subject: Re: Inverse Lights
> 
> set the light up how you want same way as with curves in maya except
> with a gradient:
>
http://www.grahamdclark.com/Studentresources/tutorials/colorstexturesspo
tl
> ength/index.html
> 
> for post lighting u can fake neg by shifting 0 to half way up the
> available but depth, then in comp shift it bak. (also this way u can
> get 6 lights instead of 3 using standard post light technique.)


> -----Original Message-----
> From: Francois Lord [mailto:francoislord(at)gmail.com]
> Sent: Thursday, June 07, 2007 2:25 PM
> To: XSI(at)Softimage.COM
> Subject: Re: Inverse Lights
> 
> In the Render Tree, plug a Scalar_State (ray length) in a
> Mixer_Gradient. Then plug the Mixer_Gradient in the light color.
Adjust
> the Active Range in the gradient (third tab). You will get a good
> control over the way the light lights.

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