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-rw-r--r--progs/demos/gears.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/progs/demos/gears.c b/progs/demos/gears.c
index 679fac44893..ab9bc007421 100644
--- a/progs/demos/gears.c
+++ b/progs/demos/gears.c
@@ -234,7 +234,9 @@ idle(void)
dt = t - t0;
t0 = t;
- angle += 70.0 * dt; /* 90 degrees per second */
+ angle += 70.0 * dt; /* 70 degrees per second */
+ angle = fmod(angle, 360.0); /* prevents eventual overflow */
+
glutPostRedisplay();
}