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-rw-r--r--progs/demos/arbfslight.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/progs/demos/arbfslight.c b/progs/demos/arbfslight.c
index 39c9226b3d9..d6363eafeb2 100644
--- a/progs/demos/arbfslight.c
+++ b/progs/demos/arbfslight.c
@@ -210,7 +210,7 @@ static void Init (void)
" // Compute diffuse and specular contributions\n"
#if 0
" gl_FragColor = diffuse * dotProd + specular * pow (dotProd, 20.0);\n"
-#else
+#elif 1 /* test IF/ELSE/ENDIF */
" if (normal.y > 0.0) { \n"
" gl_FragColor = diffuse * dotProd + specular * pow (dotProd, 20.0);\n"
" } \n"
@@ -222,6 +222,16 @@ static void Init (void)
" gl_FragColor = vec4(1, 1, 0, 0); \n"
" } \n"
" } \n"
+#elif 1 /* test LOOP */
+ " while (1) { \n"
+ " if (normal.y >= 0.0) { \n"
+ " gl_FragColor = vec4(1, 0, 0, 0); \n"
+ " break; \n"
+ " } else { \n"
+ " gl_FragColor = diffuse * dotProd + specular * pow (dotProd, 20.0);\n"
+ " break; \n"
+ " } \n"
+ " } \n"
#endif
"}\n"
;