Installing the gem
Requirements
Requires JRubyArt or propane
Install the joonsrenderer gem
jgem install joonsrenderer # safe way
gem install joonsrenderer # using rvm rbenv to choose jruby
Create basic sketch
mkdir 'my_sketch'
cd my_sketch
k9 -c my_sketch 800 600 P3D # JRubyArt
propane -c my_sketch 800 600 P3D # propane
Edit the JRubyArt sketch as follows:-
require 'joonsrender'
include_package 'joons'
attr_reader :jr, :eye, :center, :up
def setup
sketch_title 'My Sketch'
@jr = JoonsRenderer.new(self)
# Camera Setting.
@eye = Vec3D.new(0, 0, 120)
@center = Vec3D.new(0, 0, -1)
@up = Vec3D.new(0, 1, 0)
end
def draw
jr.begin_record # Make sure to include things you want rendered.
kamera(eye: eye, center: center, up: up)
perspektiv(fov: PI / 4.0, aspect_ratio: 4 / 3.0, near_z: 5, far_z: 10_000)
jr.background('cornell_box', 100, 100, 100) # Cornell Box: width, height, depth.
jr.background('gi_instant') # Global illumination.
translate(0, 10, -10)
rotate_y(-PI / 8)
rotate_x(-PI / 8)
jr.fill('diffuse', 255, 255, 255)
box(20)
jr.end_record # Make sure to end record.
jr.display_rendered(true) # Display rendered image if render is completed, and the argument is true.
end
def key_pressed
jr.render if (key == 'r' || key == 'R') # Press 'r' key to start rendering.
end
def settings
size(800, 600, P3D)
end
The processing sketch
The raytraced output
Usage with propane is very similar