Patterns

Pattern 0

Pattern 0

This pattern was made in Cairo 2011-08-30 while finishing our first larger project in Small World Interactive.

include Math

def svin(x) return sin(x)*0.5+0.5 end

puts "P3\n#{800} #{800}\n255"

(0...800).each{|py|
  s=""
  (0...800).each{|px|

    x=(px-400)/400.0
    y=(py-400)/400.0

    ra=x*x+y*y
    a=atan2(y,x)
    r=svin((ra+svin(a*25))*23)*255
    g=svin((ra+svin(a*26))*22)*255
    b=svin((ra+svin(a*27))*21)*255
    s+="#{r.to_i} #{g.to_i)} #{b.to_i} "

  }
  puts s
}