2 (asdf:oos
'asdf
:load-op
'#:cl-glfw
)
7 (glfw:do-window
("Spinning Triangle" 640 480)
8 ((glfw:enable glfw
:+sticky-keys
+)
11 (unless (glfw:load-texture-2d
(namestring (merge-pathnames "mipmaps.tga" (or *load-pathname
* #P
"examples/")))
12 glfw
:+build-mipmaps-bit
+)
13 (error "Unable to load texture!"))
15 (gl:tex-parameter-i gl
:+texture-2d
+ gl
:+texture-min-filter
+ gl
:+linear-mipmap-linear
+)
16 (gl:tex-parameter-i gl
:+texture-2d
+ gl
:+texture-mag-filter
+ gl
:+linear
+)
18 (gl:enable gl
:+texture-2d
+)
19 (setf t1
(glfw:get-time
)
22 (unless (zerop (glfw:get-key glfw
:+key-esc
+))
23 (return-from glfw
:do-window
))
25 (setf t1
(glfw:get-time
))
27 (when (or (> (- t1 t0
) 1.0)
29 (glfw:set-window-title
(format nil
"Spinning Triangle (~,1f FPS)" (/ frames
(- t1 t0
))))
35 (gl:clear-color
0.0 0.0 0.0 0.0)
36 (gl:clear gl
:+color-buffer-bit
+)
38 (destructuring-bind (width height
) (glfw:get-window-size
)
39 (setf height
(max height
1))
40 (gl:viewport
0 0 width height
)
42 (gl:with-setup-projection
43 (glu:perspective
65.0d0
(coerce (/ width height
) 'double-float
) 1.0d0
50.0d0
))
45 (glu:look-at
0.0d0
3.0d0 -
20.0d0
50 (destructuring-bind (x y
) (glfw:get-mouse-pos
)
52 (gl:rotate-f
(+ (* x
0.05)
56 (gl:with-begin gl
:+quads
+
57 (gl:tex-coord-2f -
20.0 20.0) (gl:vertex-3f -
50.0 0.0 -
50.0)
58 (gl:tex-coord-2f
20.0 20.0) (gl:vertex-3f
50.0 0.0 -
50.0)
59 (gl:tex-coord-2f
20.0 -
20.0) (gl:vertex-3f
50.0 0.0 50.0)
60 (gl:tex-coord-2f -
20.0 -
20.0) (gl:vertex-3f -
50.0 0.0 50.0))))