fix some more uninitialized variables found by valgrind

git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@7017 30fe4595-0a0c-4342-8851-515496e4dcbd

Former-commit-id: f316145cbc81c0638ec82ddd1f0f48da2dd952ce
Former-commit-id: 674dd97cbad5f42db621bea319f172d5b30e673b

src/modules/graphic/osggraph/Sky/OsgCloud.cpp

@@ -120,7 +120,9 @@ SDCloudLayer::SDCloudLayer( const string &tex_path ) :
     direction(0.0),
     alt(1.0),
     /*last_course(0.0),*/
-    max_alpha(1.0)
+    max_alpha(1.0),
+    last_x(0.0),
+    last_y(0.0)
 {
     cloud_root->addChild(layer_root.get(), true);
     layer_root->addChild(group_bottom.get());

src/modules/graphic/osggraph/Sky/OsgSun.cpp

@@ -36,7 +36,15 @@
 
 // Constructor
 SDSun::SDSun( void ) :
-    visibility(-9999.0), prev_sun_angle(-9999.0), path_distance(60000.0),
+    visibility(-9999.0),
+    prev_sun_angle(-9999.0),
+    sun_angle(0.0),
+    sun_rotation(0.0),
+    sun_angle_to_scene(0.0),
+    sun_right_ascension(0.0),
+    sun_declination(0.0),
+    sun_dist(0.0),
+    path_distance(60000.0),
     sun_exp2_punch_through(7.0e-06)
 {
 }