2 (asdf:oos
'asdf
:load-op
'#:cl-glfw-opengl-version_2_0
)
4 (declaim (optimize (debug 3)))
6 ;; This example uses the gl:synchronizing-program mechanism to reload+recompile+relink shader files on-file-change
8 (glfw:do-window
("An OpenGL 2.0 Synchronized Shader Example")
9 ((gl:with-setup-projection
10 (glu:perspective
45 4/3 0.1 50)))
11 (gl:clear gl
:+color-buffer-bit
+)
13 (gl:translate-f
0 0 -
5)
14 (gl:rotate-d
(* 10 (glfw:get-time
)) 1 1 0)
15 (gl:rotate-d
(* 90 (glfw:get-time
)) 0 0 1)
16 (let ((program (gl:synchronizing-program
'synchronized-shader
17 (list gl
:+vertex-shader
+ (merge-pathnames "synchronized-shader.vert" *load-truename
*))
18 (list gl
:+fragment-shader
+ (merge-pathnames "synchronized-shader.frag" *load-truename
*)))))
19 (gl:with-use-program program
20 (gl:uniform-1f
(gl:get-uniform-location program
"time") (glfw:get-time
))
21 (gl:with-begin gl
:+triangles
+
22 (gl:color-3f
1 0 0) (gl:vertex-3f
1 0 0)
23 (gl:color-3f
0 1 0) (gl:vertex-3f -
1 1 0)
24 (gl:color-3f
0 0 1) (gl:vertex-3f -
1 -
1 0)))))