From http://www.jwz.org/xscreensaver/xscreensaver-5.18.tar.gz

[xscreensaver] / hacks / glx / gflux.c

diff --git a/hacks/glx/gflux.c b/hacks/glx/gflux.c
index 80310cc285efe7b7e950b5721daaf002be94798d..f3829b59c707efa6960344dd2da98bf92fbf92d5 100644 (file)
--- a/hacks/glx/gflux.c
+++ b/hacks/glx/gflux.c
@@ -281,7 +281,10 @@ gflux_handle_event (ModeInfo *mi, XEvent *event)
 static void
 userRot(gfluxstruct *gp)
 {
+  /* Do it twice because we don't track the device's orientation. */
+  glRotatef( current_device_rotation(), 0, 0, 1);
   gltrackball_rotate (gp->trackball);
+  glRotatef(-current_device_rotation(), 0, 0, 1);
 }
 
 /* draw the gflux once */