lib/rubysketch/processing.rb in rubysketch-0.2.3 vs lib/rubysketch/processing.rb in rubysketch-0.2.4

@@ -1025,23 +1025,27 @@
 
     # Returns the perlin noise value.
     #
     # @overload noise(x)
     # @overload noise(x, y)
+    # @overload noise(x, y, z)
     #
     # @param x [Numeric] horizontal point in noise space
     # @param y [Numeric] vertical point in noise space
+    # @param z [Numeric] depth point in noise space
     #
     # @return [Numeric] noise value (0.0..1.0)
     #
-    def noise (x, y = 0)
-      Rays.perlin(x, y) / 2.0 + 1.0
+    def noise (x, y = 0, z = 0)
+      Rays.perlin(x, y, z) / 2.0 + 0.5
     end
 
     # Loads image.
     #
     # @param filename  [String] file name to load image
     # @param extension [String] type of image to load (ex. 'png')
+    #
+    # @return [Image] loaded image object
     #
     def loadImage (filename, extension = nil)
       filename = getImage__ filename, extension if filename =~ %r|^https?://|
       Image.new Rays::Image.load filename
     end