diff --git a/modules/gfx/src/scene.hh b/modules/gfx/src/scene.hh
index bf093efaff7384f608ce2cac18e5a4b92c14c13e..932f7e5a7a0cf8f11a14b2c60f41f759184d8149 100644
--- a/modules/gfx/src/scene.hh
+++ b/modules/gfx/src/scene.hh
@@ -249,10 +249,10 @@ class DLLEXPORT_OST_GFX Scene {
   /// if a main offscreen buffer is active (\sa StartOffscreenMode), then the
   /// dimensions here are ignored
   void Export(const String& fname, unsigned int w,
-              unsigned int h, bool transparent=true);
+              unsigned int h, bool transparent=false);
 
   /// \brief export snapshot of current scene
-  void Export(const String& fname, bool transparent=true);
+  void Export(const String& fname, bool transparent=false);
 
   /// \brief export scene into povray files named fname.pov and fname.inc
   void ExportPov(const std::string& fname, const std::string& wdir=".");