add back top level Rakefile

Author: monkstone

Rakefile

@@ -0,0 +1,41 @@
+# -*- encoding: utf-8 -*-
+
+root = File.expand_path(__dir__)
+
+desc 'run contributed samples'    
+task :default => [:all]
+
+desc 'run all autorun samples except hype'
+task :all do
+  Rake::Task[:contributed].execute
+  Rake::Task[:vecmath].execute  
+  Rake::Task[:shaders].execute
+  Rake::Task[:slider].execute
+end
+
+desc 'run contributed samples'
+task :contributed do
+  sh "cd #{root}/contributed && rake"
+end
+
+desc 'shaders'
+task :shaders do
+  sh "cd #{root}/processing_app/topics/shaders && rake"
+end
+
+desc 'vecmath'
+task :vecmath do
+  sh "cd #{root}/processing_app/library/vecmath/vec2d && rake"
+  sh "cd #{root}/processing_app/library/vecmath/vec3d && rake"
+  sh "cd #{root}/processing_app/library/vecmath/arcball && rake"
+end
+
+desc 'hype'
+task :hype do
+  sh "cd #{root}/external_library/java/hype && rake"
+end
+
+desc 'slider'
+task :slider do
+  sh "cd #{root}/processing_app/library/slider && rake"
+end

processing_app/topics/shaders/bw_shader.rb

@@ -7,7 +7,7 @@ def setup
   sketch_title 'Bw shader'
   # @label = load_image('lachoy.jpg') # sketch needs --noruby flag to run
   # @label = load_image((File.absolute_path('data/lachoy.jpg')) # no flag required
-  @label = load_image((data_path('lachoy.jpg')) # no flag required
+  @label = load_image(data_path('lachoy.jpg')) # no flag required
   @can = create_can(100, 200, 32, label)
   # @bw_shader = load_shader('bwfrag.glsl') # sketch needs --noruby flag to run
   # @bw_shader = load_shader(File.absolute_path('data/bwfrag.glsl')) # no flag required