andrewradev / simple_gl Goto Github PK

Note: Currently, this project doesn't seem to work, since the OpenGL bindings aren't able to be installed due to rake incompatibilities. The opengl project seems abandoned, so it's unlikely it'll be fixed.

Since the OpenGL functions in the ruby bindings don't seem very ruby-esque, this little project aims to provide a (hopefully) nicer API to drawing with opengl.

Apart from converting camelCased methods to their underscored versions, this gem also provides glut "apps" that can be used to build small applications fairly quickly. A few examples can be found in the examples directory. The fastest way to get something on the screen would be Glut.simple_render:

require 'simple_gl'

SimpleGl::Glut.simple_render do |gl, glut|
  gl.clear
  gl.color 1, 1, 1
  gl.begin :line_loop do |gl|
    gl.vertex 0,  0,  0
    gl.vertex 0,  10, 0
    gl.vertex 10, 10, 0
    gl.vertex 10, 0,  0
  end
  glut.swap_buffers
end

This uses the given block as the OpenGL display callback, sets up some default resize and keyboard functions that should mostly work, and fires up the main loop.