// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
-// You should have received a copy of the GNU Library General Public
-// License along with this library; if not, write to the
-// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-// Boston, MA 02111-1307, USA.
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#ifndef _SG_SUN_HXX_
#define _SG_SUN_HXX_
+#include <osg/Array>
+#include <osg/Node>
+#include <osg/MatrixTransform>
-#include <plib/ssg.h>
+#include <simgear/structure/SGReferenced.hxx>
#include <simgear/misc/sg_path.hxx>
+#include <simgear/props/props.hxx>
+class SGSun : public SGReferenced {
-class SGSun {
+ osg::ref_ptr<osg::MatrixTransform> sun_transform;
- ssgTransform *sun_transform;
- ssgSimpleState *orb_state;
- ssgSimpleState *halo_state;
+ osg::ref_ptr<osg::Vec4Array> sun_cl;
+ osg::ref_ptr<osg::Vec4Array> scene_cl;
+ osg::ref_ptr<osg::Vec4Array> ihalo_cl;
+ osg::ref_ptr<osg::Vec4Array> ohalo_cl;
- ssgColourArray *cl;
+ double visibility;
+ double prev_sun_angle;
+ // distance of light traveling through the atmosphere
+ double path_distance;
+ double sun_exp2_punch_through;
- ssgVertexArray *halo_vl;
- ssgTexCoordArray *halo_tl;
-
- GLuint sun_texid;
- GLubyte *sun_texbuf;
+ SGPropertyNode_ptr env_node;
public:
~SGSun( void );
// return the sun object
- ssgBranch *build( SGPath path, double sun_size );
+ osg::Node* build( SGPath path, double sun_size, SGPropertyNode *property_tree_Node );
// repaint the sun colors based on current value of sun_anglein
// degrees relative to verticle
// 0 degrees = high noon
// 90 degrees = sun rise/set
// 180 degrees = darkest midnight
- bool repaint( double sun_angle );
+ bool repaint( double sun_angle, double new_visibility );
// reposition the sun at the specified right ascension and
// declination, offset by our current position (p) so that it
// appears fixed at a great distance from the viewer. Also add in
// an optional rotation (i.e. for the current time of day.)
- bool reposition( sgVec3 p, double angle,
- double rightAscension, double declination,
- double sun_dist );
+ bool reposition( double rightAscension, double declination,
+ double sun_dist, double lat, double alt_asl, double sun_angle );
// retrun the current color of the sun
- inline float *get_color() { return cl->get( 0 ); }
+ SGVec4f get_color();
+ SGVec4f get_scene_color();
};