-glClearColor(red = 0.3, green = 0.1, blue = 0.3, alpha = 1)
-glViewport(x = 0, y = 0, width = 250, height = 250)
-glMatrixMode(mode = GL_PROJECTION)
-glLoadIdentity()
-glOrtho(left = -1, right = 1, bottom = -1, top = 1, zNear = -0.5, zFar = 1000)
-glMatrixMode(mode = GL_MODELVIEW)
-glClear(mask = GL_COLOR_BUFFER_BIT)
-glBegin(mode = GL_TRIANGLES)
-glColor3f(red = 0.8, green = 0, blue = 0)
-glVertex3f(x = -0.9, y = -0.9, z = -30)
-glColor3f(red = 0, green = 0.9, blue = 0)
-glVertex3f(x = 0.9, y = -0.9, z = -30)
-glColor3f(red = 0, green = 0, blue = 0.7)
-glVertex3f(x = 0, y = 0.9, z = -30)
-glEnd()
-glFlush()
-#image tri.ref.png