[Date Index] [Thread Index] [Author Index]

Re: Graphics3D default lighting?

• To: mathgroup at smc.vnet.net
• Subject: [mg113617] Re: Graphics3D default lighting?
• From: Yves Klett <yves.klett at googlemail.com>
• Date: Fri, 5 Nov 2010 05:10:05 -0500 (EST)
• References: <iatsv6$eee$1@smc.vnet.net>

Hi,

a search of this very group yields ( http://tinyurl.com/2wl6ofh ):

> At 04:42 AM 3/30/2009, David Park wrote:
> 
>>Does anyone know how to find out the default lighting colors and positions?
> 
> There isn't a way to extract this information with a Mathematica
> command, but I can give you the effective value as of version 6 and later.
> 
> Lighting->Automatic for Graphics3D is
> 
> Lighting->{
> {"Ambient",RGBColor[{0.312,0.188,0.4}]},
> {"Directional",RGBColor[{0.8,0.,0.}],ImageScaled[{2,0,2}]},
> {"Directional",RGBColor[{0.,0.8,0.}],ImageScaled[{2,2,2}]},
> {"Directional",RGBColor[{0.,0.,0.8}],ImageScaled[{0,2,2}]}
> 
> }
> 
> Lighting->"Neutral" for Graphics3D is
> 
> Lighting->{
> {"Ambient",RGBColor[{.35,.35,.35}]},
> {"Directional",RGBColor[{.37,.37,.37}],ImageScaled[{2,0,2}]},
> {"Directional",RGBColor[{.37,.37,.37}],ImageScaled[{2,2,2}]},
> {"Directional",RGBColor[{.37,.37,.37}],ImageScaled[{0,2,2}]}
> 
> }
> 
> Chris Hill
> Wolfram Research 

Regards,
Yves


Am 04.11.2010 10:04, schrieb Steve W. Brewer:
> I'm trying to determine the specification for the default lighting scheme
> used by Graphics3D objects.
> 
>     AbsoluteOptions[Graphics3D[], Lighting]
> 
> gives:
> 
>     { Lighting -> Automatic }
> 
> Not particularly helpful.
> 
> Anyone know how to get the actual settings for this option?  Or barring
> that, anyone happen to just know what the default lighting specification is?
> 
> 
> Thanks!
> 
> Steve W. Brewer
> 
>