diff --git a/cube.lisp b/cube.lisp
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+(defparameter *light-diffuse* (vector 1.0 0.0 0.0 1.0))  ;; red diffuse light
+(defparameter *light-position* (vector 1.0 1.0 1.0 0.0)) ;; infinite light position
+
+;;; Normals for the 6 faces of the cube
+(defparameter *n* '((-1.0 0.0 0.0) (0.0 1.0 0.0) (1.0 0.0 0.0)
+		    (0.0 -1.0 0.0) (0.0 0.0 1.0) (0.0 0.0 -1.0)))
+
+;;; Vertex indices for the 6 faces of the cube
+(defparameter *faces* '((0 1 2 3) (2 3 6 7) (7 6 5 4)
+		       (4 5 1 0) (5 6 2 1) (7 4 0 3)))
+
+;;; will be filled with the vertexes
+(defparameter *v* '((-1 -1 1) (-1 -1 -1) (-1 1 -1) (-1 1 1)
+		    (1 -1 1) (1 -1 -1) (1 1 -1) (1 1 1)))
+
+(defmacro 2elt (e x y)
+  `(elt (elt ,e ,x) ,y))
+  
+(defmacro 3delt (e1 x1 e2 x3)
+  `(elt (elt ,e2 (elt ,e1 ,x1)) ,x3))
+
+(defun draw-box ()
+  (dotimes (i 6)
+    (gl:with-primitives :quads
+      (gl:normal (2elt *n* i 0) (2elt *n* i 1) (2elt *n* i 2))
+      (let ((face (elt *faces* i)))
+	(dotimes (x 4)
+	  (gl:vertex (3delt face x *v* 0) (3delt face x *v* 1) (3delt face x *v* 1)))))))
+	
+(cffi:defcallback display :void ()
+  (gl:clear :color-buffer-bit :depth-buffer-bit)
+  (draw-box)
+  ;;glut:swap-buffers
+)
+
+(defun init () 
+  (gl:light :light0 :diffuse *light-diffuse*)
+  (gl:light :light0 :position *light-position*)
+  (gl:enable :light0 :lighting :depth-test)
+
+  (gl:matrix-mode :projection)
+  (glu:perspective 40.0 ;; FOV
+		   1.0  ;; aspect ratio
+		   1.0  ;; z near
+		   10.0 ;; z far
+		   )
+  (gl:matrix-mode :modelview)
+  (glu:look-at 0 0 5 ;; eye is at 0,0,5
+	       0 0 0 ;; center is at 0,0,0
+	       0 1 0 ;;up is in pos Y
+	       )
+
+  ;; adjust cube position to be asthetic angle
+  (gl:translate 0.0 0.0 -1.0)
+  (gl:rotate 60 1.0 0.0 0.0)
+  (gl:rotate -20 0.0 0.0 1.0))
+
+(defun cube-main () 
+  (glut:init "Cube")
+  (glut:init-display-mode :double :rgb :depth)
+  (glut:create-window "red 3D lighted cube")
+  (glut:display-func (cffi:callback display))
+  (init)
+  (glut:main-loop)
+)
+       
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