perspective.rb in ruby-processing-1.0.6

- old
+ new

@@ -1,7 +1,5 @@
-require 'ruby-processing'
-
 # Move the mouse left and right to change the field of view (fov).
 # Click to modify the aspect ratio. The perspective method
 # sets a perspective projection applying foreshortening, making 
 # distant objects appear smaller than closer ones. The parameters 
 # define a viewing volume with the shape of truncated pyramid. 
@@ -10,35 +8,29 @@
 # the perspective of the world more accurately than orthographic projection. 
 # The version of perspective without parameters sets the default 
 # perspective and the version with four parameters allows the programmer 
 # to set the area precisely.
 
-class Perspective < Processing::App
+def setup
+  size 640, 360, P3D
+  no_stroke
+end
 
-  def setup
-    render_mode P3D
-    no_stroke
-  end
+def draw
+  lights
+  background 204
+  camera_y = height/2.0
+  fov = mouse_x/width.to_f * PI/2.0
+  camera_z = camera_y / tan(fov / 2.0)
+  aspect = width.to_f / height.to_f
   
-  def draw
-    lights
-    background 204
-    camera_y = height/2.0
-    fov = mouse_x/width.to_f * PI/2.0
-    camera_z = camera_y / tan(fov / 2.0)
-    aspect = width.to_f / height.to_f
-    
-    aspect /= 2.0 if mouse_pressed?
-    
-    perspective(fov, aspect, camera_z/10.0, camera_z*10.0)
-    
-    translate width/2.0+30, height/2.0, 0
-    rotate_x -PI/6
-    rotate_y PI/3 + mouse_y/height.to_f * PI
-    box 45
-    translate 0, 0, -50
-    box 30
-  end
+  aspect /= 2.0 if mouse_pressed?
   
-end
-
-Perspective.new :title => "Perspective", :width => 640, :height => 360
+  perspective(fov, aspect, camera_z/10.0, camera_z*10.0)
+  
+  translate width/2.0+30, height/2.0, 0
+  rotate_x -PI/6
+  rotate_y PI/3 + mouse_y/height.to_f * PI
+  box 45
+  translate 0, 0, -50
+  box 30
+end
\ No newline at end of file