2 (asdf:oos
'asdf
:load-op
'#:cl-glfw
)
6 (unless (glfw:open-window
640 480 0 0 0 0 0 0 glfw
:+window
+)
9 (glfw:enable glfw
:+sticky-keys
+)
10 (glfw:swap-interval
0)
12 (unless (glfw:load-texture-2d
(namestring (merge-pathnames "mipmaps.tga" (or *load-pathname
* #P
"examples/")))
13 glfw
:+build-mipmaps-bit
+)
16 (gl:tex-parameter-i gl
:+texture-2d
+ gl
:+texture-min-filter
+ gl
:+linear-mipmap-linear
+)
17 (gl:tex-parameter-i gl
:+texture-2d
+ gl
:+texture-mag-filter
+ gl
:+linear
+)
19 (gl:enable gl
:+texture-2d
+)
21 (do ((running t
(and (zerop (glfw:get-key glfw
:+key-esc
+))
22 (not (zerop (glfw:get-window-param glfw
:+opened
+)))))
25 (t1 (glfw:get-time
) (glfw:get-time
)))
28 (when (or (> (- t1 t0
) 1.0)
30 (glfw:set-window-title
(format nil
"Spinning Triangle (~,1f FPS)" (/ frames
(- t1 t0
))))
36 (gl:clear-color
0.0 0.0 0.0 0.0)
37 (gl:clear gl
:+color-buffer-bit
+)
39 (destructuring-bind (width height
) (glfw:get-window-size
)
40 (setf height
(max height
1))
41 (gl:viewport
0 0 width height
)
43 (gl:matrix-mode gl
:+projection
+)
45 (glu:perspective
65.0d0
(coerce (/ width height
) 'double-float
) 1.0d0
50.0d0
)
46 (gl:matrix-mode gl
:+modelview
+)
48 (glu:look-at
0.0d0
3.0d0 -
20.0d0
52 (destructuring-bind (x y
) (glfw:get-mouse-pos
)
54 (gl:rotate-f
(coerce (+ (* x
0.05)
60 (gl:tex-coord-2f -
20.0 20.0) (gl:vertex-3f -
50.0 0.0 -
50.0)
61 (gl:tex-coord-2f
20.0 20.0) (gl:vertex-3f
50.0 0.0 -
50.0)
62 (gl:tex-coord-2f
20.0 -
20.0) (gl:vertex-3f
50.0 0.0 50.0)
63 (gl:tex-coord-2f -
20.0 -
20.0) (gl:vertex-3f -
50.0 0.0 50.0)