more samples

Author: monkstone

processing_app/basics/camera/arcball_perspektiv.rb

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+#!/usr/bin/env jruby -v -W2
+require 'propane'
+require 'arcball'
+# Move the mouse left and right to change the field of view (fov).
+# Click to modify the aspect ratio. The perspektiv 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.
+# while farther objects appear smaller. This projection simulates
+# the perspective of the world more accurately than orthographic projection.
+# The version of perspektiv without parameters sets the default
+# perspective and the version with up to four parameters allows the programmer
+# to set the environment more precisely.
+class ArcballPerspektiv < Propane::App
+  attr_reader :aspect
+
+  def setup
+    sketch_title 'Perspektiv Example'
+    Processing::ArcBall.constrain self
+    @aspect = width.to_f / height
+    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 / Math.tan(fov / 2.0)
+    perspektiv(
+      fov: fov,
+      aspect_ratio: aspect,
+      near_z: camera_z / 10.0,
+      far_z: camera_z * 10.0
+    )
+    rotate_x -PI / 6
+    box 45
+    translate 0, 0, -50
+    box 30
+  end
+
+  def settings
+    size 640, 360, P3D
+  end
+
+  def key_pressed
+    case key
+    when ' '
+      @aspect = width * 0.5 / height
+    when 'n', 'N'
+      @aspect = width.to_f / height
+    end
+  end
+end
+
+ArcballPerspektiv.new

processing_app/basics/camera/kmove_eye.rb

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+#!/usr/bin/env jruby -v -W2
+require 'propane'
+# Move Eye.
+# by Simon Greenwold.
+#
+# The camera lifts up (controlled by mouseY) while looking at the same point.
+class KMoveEye < Propane::App
+  def setup
+    sketch_title 'KMove Eye Kamera'
+    fill 204
+  end
+
+  def draw
+    lights
+    background 0
+    kamera eye: Vec3D.new(30, mouse_y, 220), center: Vec3D.new
+    no_stroke
+    box 90
+    stroke 255
+    line( -100, 0, 0, 100, 0, 0)
+    line( 0, -100, 0, 0, 100, 0)
+    line( 0, 0, -100, 0, 0, 100)
+  end
+
+  def settings
+    size 640, 360, P3D
+  end
+end
+
+KMoveEye.new

processing_app/basics/camera/move_eye.rb

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+#!/usr/bin/env jruby -v -W2
+require 'propane'
+# Move Eye.
+# by Simon Greenwold.
+#
+# The camera lifts up (controlled by mouseY) while looking at the same point.
+class MoveEye < Propane::App
+  def setup
+    sketch_title 'Move Eye'
+    fill 204
+  end
+
+  def draw
+    lights
+    background 0
+    camera 30, mouse_y, 220, 0, 0, 0, 0, 1, 0
+    no_stroke
+    box 90
+    stroke 255
+    line( -100, 0, 0, 100, 0, 0)
+    line( 0, -100, 0, 0, 100, 0)
+    line( 0, 0, -100, 0, 0, 100)
+  end
+
+  def settings
+    size 640, 360, P3D
+  end
+end
+
+MoveEye.new

processing_app/basics/camera/perspective.rb

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+#!/usr/bin/env jruby -v -W2
+require 'propane'
+# 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.
+# while farther objects appear smaller. This projection simulates
+# 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 < Propane::App
+  def setup
+    sketch_title 'Perspective'
+    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 / Math.tan(fov / 2.0)
+    aspect = width.to_f / height
+    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
+
+  def settings
+    size 640, 360, P3D
+  end
+end
+
+Perspective.new

processing_app/basics/camera/perspektiv.rb

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+#!/usr/bin/env jruby -v -W2
+require 'propane'
+# Move the mouse left and right to change the field of view (fov).
+# Click to modify the aspect ratio. The perspektiv 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.
+# while farther objects appear smaller. This projection simulates
+# the perspective of the world more accurately than orthographic projection.
+# The version of perspektiv without parameters sets the default
+# perspective and the version with up to four parameters allows the programmer
+# to set the environment more precisely.
+class Perspektiv < Propane::App
+  def setup
+    sketch_title 'Perspektiv Example'
+    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 / Math.tan(fov / 2.0)
+    aspect = width.to_f / height
+    aspect /= 2.0 if mouse_pressed?
+    perspektiv(
+      fov: fov,
+      aspect_ratio: aspect,
+      near_z: camera_z / 10.0,
+      far_z: 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
+
+  def settings
+    size 640, 360, P3D
+  end
+end
+
+Perspektiv.new

processing_app/basics/camera/perspektiv2.rb

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+#!/usr/bin/env jruby -v -W2
+require 'propane'
+# Move the mouse left and right to change the field of view (fov).
+# Click to modify the aspect ratio. The perspektiv 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.
+# while farther objects appear smaller. This projection simulates
+# the perspective of the world more accurately than orthographic projection.
+# The version of perspective without parameters sets the default
+# perspective and the version with up to four parameters allows the programmer
+# to set the area precisely.
+class Perspektiv < Propane::App
+  def setup
+    sketch_title 'Perspektiv2 Example'
+    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 / Math.tan(fov / 2.0)
+    aspect = width.to_f / height.to_f
+    aspect /= 2.0 if mouse_pressed?
+    # here we omit aspect ratio (defaults to width / height)
+    perspektiv(
+      fov: fov,
+      near_z: camera_z / 10.0,
+      far_z: 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
+
+  def settings
+    size 640, 360, P3D
+  end
+end
+
+Perspektiv.new

processing_app/basics/shape/Rakefile

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+# Simple demo Rakefile to autorun samples in current directory
+# adjust path to k9 executable, and or opts as required
+
+SAMPLES_DIR="./"
+
+desc 'run demo'
+task :default => [:demo]
+
+desc 'demo'
+task :demo do
+  samples_list.shuffle.each{|sample| run_sample sample}
+end
+
+def samples_list
+  files = []
+  Dir.chdir(SAMPLES_DIR)
+  Dir.glob("*.rb").each do |file|
+    files << File.join(SAMPLES_DIR, file)
+  end
+  return files
+end
+
+def run_sample(sample_name)
+  puts "Running #{sample_name}...quit to run next sample"
+  open("|jruby #{sample_name}", "r") do |io|
+    while l = io.gets
+      puts(l.chop)
+    end
+  end
+end