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require 'opengl'
require 'glfw'
#init
Glfw.glfwOpenWindow( 500,500, 0,0,0,0, 32,0, Glfw::GLFW_WINDOW )
# main loop
while true
if( Glfw.glfwGetWindowParam( Glfw::GLFW_OPENED ) == false ||
Glfw.glfwGetKey(Glfw::GLFW_KEY_ESC) == Glfw::GLFW_PRESS )
break
end
Gl.glClear( Gl::GL_COLOR_BUFFER_BIT | Gl::GL_DEPTH_BUFFER_BIT )
Gl.glBegin( Gl::GL_POLYGON )
Gl.glColor3f( 1.0, 0.0, 0.0 )
Gl.glVertex2f( -0.5, -0.5 )
Gl.glColor3f( 0.0, 1.0, 0.0 )
Gl.glVertex2f( -0.5, 0.5 )
Gl.glColor3f( 0.0, 0.0, 1.0 )
Gl.glVertex2f( 0.5, 0.5 )
Gl.glColor3f( 1.0, 0.0, 1.0 )
Gl.glVertex2f( 0.5, -0.5 )
Gl.glEnd
Glfw.glfwSwapBuffers()
sleep 0.01 # to avoid consuming all CPU power
end
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