On Thu, 16 Mar 2000 17:41:59 -0500, Chris Huff
<chr### [at] yahoocom> wrote:

>An "additive" pattern would add the colors/densities/normals/whatever 
>together instead of averaging them together. You could subtract a 
>"channel" by using negative numbers for it. Maybe "multiplicative" would 
>also be good.
>
>It would also be nice to be able to specify the way they are combined by 
>using an isosurface function, but I don't know how this would be 
>specified with the current syntax or how difficult it would be to 
>implement.

#declare R_Bozo=function{pigment{bozo{color_map{[0 Red][1 Black}}}
#declare B_Wood=function{pigment{wood{color_map{[0 Blue][1 Black}}}
#declare G_Agate=function{pigment{agate{color_map{[0 Green][1 Black}}}

sphere
{0,1 pigment{function{R_Bozo(x,y,z)+B_Wood(x,y,z)+G_Agata(x,y,z)}}}

Sorry_my_space_bar_died_gotta_fix_it


Peter Popov
pet### [at] usanet
ICQ: 15002700

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