double dt = 0.0 );
/** draw the cloud layer */
- void draw();
+ void draw( bool top );
private:
ssgRoot *layer_root;
ssgTransform *layer_transform;
ssgLeaf *layer[4];
+ ssgStateSelector *state_sel;
ssgColourArray *cl[4];
ssgVertexArray *vl[4];
// from winds, and to simulate the clouds being tied to ground
// position, not view position
// double xoff, yoff;
- double last_lon, last_lat;
-
+ double last_lon, last_lat, last_course;
};