title: How to move triangle on plane in opengl
body: <p>I want to move triangle on plane.How will i do it.I am using opengl "glut" and also i want to keep co-ordinate position of triangle.first time it will start at point (0,0,-6) and then when i will press "a" this will move left and when i will press "d" this will move "right".I know the keyoperation definition in opengl of "w" and "s".But my main concern is with movment and knwoing of co-ordinate points.</p>
  
  <p>Thankie</p>