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path: root/progs/trivial/tri-unfilled-userclip.c
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Diffstat (limited to 'progs/trivial/tri-unfilled-userclip.c')
-rw-r--r--progs/trivial/tri-unfilled-userclip.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/progs/trivial/tri-unfilled-userclip.c b/progs/trivial/tri-unfilled-userclip.c
index dc93a8f1ab..9201f9d433 100644
--- a/progs/trivial/tri-unfilled-userclip.c
+++ b/progs/trivial/tri-unfilled-userclip.c
@@ -123,7 +123,7 @@ int main(int argc, char **argv)
glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
- type = GLUT_RGB;
+ type = GLUT_RGB | GLUT_ALPHA;
type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
glutInitDisplayMode(type);