diff --git a/src/Main/main.cxx b/src/Main/main.cxx
index 1e353b833..4d8d1243e 100644
--- a/src/Main/main.cxx
+++ b/src/Main/main.cxx
@@ -661,7 +661,14 @@ void fgRenderFrame( void ) {
 	ssgSetFOV( globals->get_current_view()->get_h_fov(),
 		   globals->get_current_view()->get_v_fov() );
 
-	ssgSetNearFar( 0.1f, 120000.0f );
+	double agl = current_aircraft.fdm_state->get_Altitude() * SG_FEET_TO_METER
+	    - scenery.get_cur_elev();
+
+	if ( agl > 10.0 ) {
+	    ssgSetNearFar( 10.0f, 120000.0f );
+	} else {
+	    ssgSetNearFar( 0.5f, 120000.0f );
+	}
 
 	current_model.update(0); // FIXME: use real delta time