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// This work is licensed under the Creative Commons Attribution 3.0 Unported License.
// To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/
// or send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View,
// California, 94041, USA.
// Persistence Of Vision Ray Tracer POV-Ray sample Scene
// by Chris Young
// MACRO1.POV demonstrates basic use of a macro. Defines
// a macro called Make_Many which takes an object and
// makes many copies of it rotated about a particular axis.
//
// -w320 -h240
// -w800 -h600 +a0.3
#version 3.7;
global_settings {assumed_gamma 1.0}
#default{ finish{ ambient 0.1 diffuse 0.9 }}
#include "colors.inc"
light_source { <1000,1000,-1000>, White}
camera { location <3,3,-10>
right x*image_width/image_height
angle 35 // direction 2*z
look_at <0,0,0>
}
union {
plane{y,-2} plane{-z,-10} plane{x,-10}
pigment{checker color rgb<1,1,1>*0.9 color rgb<1,1,1>*1.2 }
}
// Define the macro. Parameters are:
// Stuff: The stuff to be multiplied and rotated
// How_Many: Number of copies to make
// Axis: The axis about which we'll rotate the copies.
#macro Make_Many (Stuff,How_Many,Axis)
#local Count=0; // this identifier is local and
// temporary to this macro
#while (Count<How_Many)
object{Stuff rotate Axis*Count*(360/How_Many)}
#local Count=Count+1;
#end
#end
#declare Thing = cylinder{0,x,0.1}
union {
Make_Many (Thing,4,z) // Make 4 things rotated about z
pigment{Red}
translate -2.25*x
}
union {
Make_Many (Thing,6,z) // Make 6 things rotated about z
pigment{Blue}
}
union {
Make_Many (Thing,6,y) // Make 6 things rotated about y
pigment{Green}
translate 2.25*x
}
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