[Radiance-general] questions about material in radiance

[imenslama at voila.fr]

thank you Axel,
Regards
Imène


> Message du 13/07/12 à 15h46
> De : "Axel Jacobs" 
> A : radiance-general at radiance-online.org
> Copie à : 
> Objet : [Radiance-general] questions about material in radiance
> 
> Hi Imene,
> 
> > materials are defined in radiance by their RGB colors and by their
> > specularity and roughness. I'm trying to test different materials
> > given in radiance tutorial and I have a question about
> > metal2 rolled_aluminium defined :
> > void metal2 rolled_aluminium
> > 4 0 0 1 .
> > 0
> > 6 .31 .31 .31 .68 .04 .09
> > what is the signification of the first line : 4 0 0 1 . ?
> > What can we put in the second line defined in this example by 0
> > Why do we define 6 arguments and not 5 in the last line and what is .09
> 
> The Radiance material specifications are explained in the Radiance
> Reference Manual:
> http://radsite.lbl.gov/radiance/refer/refman.pdf
> 
> The metal2 material has anisotropic roughness. The direction of the
> anisotrophy is defined by the vector in the 2nd line (0 0 1). The
> urough and vrough values (0.04 and 0.09) define the roughness
> perpendicular to the roughness vector.
> See 'plastc2' on p7 and 'metal2' on p8 of the Reference manual.
> 
> > If i want to test this material in colour picker for radiance
> > given in this site : http://www.jaloxa.eu/resources/radiance/colour_picker/index.shtml
> > where can I write the arguments of the first line ?
> 
> The Jaloxa colour picker only supports 'plastic' and 'metal'. Sorry.
> 
> Regards
> 
> Axel
> 
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