#define _SG_SKY_HXX
-#ifndef __cplusplus
-# error This library requires C++
-#endif
-
#include <simgear/compiler.h>
+#include <simgear/math/sg_random.h>
#include <simgear/misc/sg_path.hxx>
#include <simgear/props/props.hxx>
#include <osg/ref_ptr>
#include <osg/MatrixTransform>
#include <osg/Node>
-#include <osg/Switch>
#include <simgear/ephemeris/ephemeris.hxx>
+#include <simgear/math/SGMath.hxx>
#include <simgear/scene/sky/cloud.hxx>
#include <simgear/scene/sky/dome.hxx>
#include <simgear/scene/sky/oursun.hxx>
#include <simgear/scene/sky/stars.hxx>
-using std::vector;
-
-
-typedef struct {
- SGVec3f view_pos, zero_elev, view_up;
- double lon, lat, alt, spin;
- double gst;
- double sun_dist;
- double moon_dist;
- double sun_angle;
-} SGSkyState;
+namespace simgear {
+class SGReaderWriterOptions;
+}
+
+struct SGSkyState
+{
+ SGVec3d pos; //!< View position in world Cartesian coordinates.
+ SGGeod pos_geod;
+ SGQuatd ori;
+ double spin; //!< An offset angle for orienting the sky effects with the
+ // sun position so sunset and sunrise effects look correct.
+ double gst; //!< GMT side real time.
+ double sun_dist; //!< the sun's distance from the current view point
+ // (to keep it inside your view volume).
+ double moon_dist;//!< The moon's distance from the current view point.
+ double sun_angle;
+};
-typedef struct {
- SGVec3f sky_color;
- SGVec3f adj_sky_color;
- SGVec3f fog_color;
- SGVec3f cloud_color;
- double sun_angle, moon_angle;
-} SGSkyColor;
+struct SGSkyColor
+{
+ SGVec3f sky_color;
+ SGVec3f adj_sky_color;
+ SGVec3f fog_color;
+ SGVec3f cloud_color;
+ double sun_angle,
+ moon_angle;
+};
/**
+ * \anchor SGSky-details
+ *
* A class to model a realistic (time/date/position) based sky.
*
- * Introduction
+ * Introduction
*
* The SGSky class models a blended sky dome, a haloed sun, a textured
* moon with phase that properly matches the date, stars and planets,
* A typical application might do the following:
- * <li> thesky->preDraw( my_altitude );
- * <li> thesky->drawUpperClouds();
- * <li> ssgCullAndDraw ( myscene ) ;
- * <li> thesky->drawLowerClouds();
+ * \li thesky->preDraw( my_altitude );
+ * \li thesky->drawUpperClouds();
+ * \li ssgCullAndDraw ( myscene ) ;
+ * \li thesky->drawLowerClouds();
* The current altitude in meters is passed to the preDraw() method
* so the clouds layers can be rendered correction from most distant
SGSharedPtr<SGStars> stars;
layer_list_type cloud_layers;
- osg::ref_ptr<osg::Group> pre_root, cloud_root;
- osg::ref_ptr<osg::Switch> pre_selector;
- osg::ref_ptr<osg::Group> pre_transform;
+ osg::ref_ptr<osg::Group> pre_root, pre_transform;
+ osg::ref_ptr<osg::Switch> cloud_root;
osg::ref_ptr<osg::MatrixTransform> _ephTransform;
float effective_visibility;
int in_cloud;
- int cur_layer_pos;
// near cloud visibility state variables
bool in_puff;
// 3D cloud density
double clouds_3d_density;
+
+ // RNG seed
+ mt seed;
public:
/**
* Initialize the sky and connect the components to the scene
- * graph at the provided branch. See discussion in detailed class
- * description.
- * @param h_radius_m horizontal radius of sky dome
- * @param v_radius_m vertical radius of sky dome
- * @param sun_size size of sun
- * @param moon_size size of moon
- * @param nplanets number of planets
- * @param planet_data an array of planet right ascensions, declinations,
- * and magnitudes
- * @param nstars number of stars
- * @param star_data an array of star right ascensions, declinations,
- * and magnitudes
+ * graph at the provided branch.
+ *
+ * @note See discussion in \ref SGSky-details "detailed class description".
+ *
+ * @param h_radius_m Horizontal radius of sky dome
+ * @param v_radius_m Vertical radius of sky dome
+ * @param sun_size Size of sun
+ * @param moon_size Size of moon
+ * @param eph Current positions of planets and stars
+ * @param node Property node connecting sun with environment
+ * @param options
*/
- void build( double h_radius_m, double v_radius_m,
- double sun_size, double moon_size,
- const SGEphemeris& eph, SGPropertyNode *property_tree_node );
+ void build( double h_radius_m,
+ double v_radius_m,
+ double sun_size,
+ double moon_size,
+ const SGEphemeris& eph,
+ SGPropertyNode *node,
+ simgear::SGReaderWriterOptions* options );
/**
- * Repaint the sky components based on current value of sun_angle,
- * sky, and fog colors. You can also specify new star and planet
- * data so that we can optionally change the magnitude of these
- * (for day/night transitions.) See discussion in detailed
- * class description.
+ * Repaint the sky components based on current sun angle, and sky and fog
+ * colors.
*
- * Sun and moon angles are specified in degrees relative to local up
- * <li> 0 degrees = high noon
- * <li> 90 degrees = sun rise/set
- * <li> 180 degrees = darkest midnight
- * @param sky_color the base sky color (for the top of the dome)
- * @param fog_color the fog color (for the horizon)
- * @param sun_angle the sun angle with the horizon (for sunrise/sunset
- * effects)
- * @param moon_angle the moon angle (so we can make it more yellow
- * at the horizon)
- * @param nplanets number of planets
- * @param planet_data an array of planet right ascensions, declinations,
- * and magnitudes
- * @param nstars number of stars
- * @param star_data an array of star right ascensions, declinations,
- * and magnitudes
+ * @note See discussion in \ref SGSky-details "detailed class description".
+ *
+ * @param sky_color The base sky color (for the top of the dome)
+ * @param eph Current positions of planets and stars
*/
- bool repaint( const SGSkyColor &sc, const SGEphemeris& eph );
+ bool repaint( const SGSkyColor &sky_color,
+ const SGEphemeris& eph );
/**
- * Reposition the sky at the specified origin and orientation
+ * Reposition the sky at the specified origin and orientation.
+ *
+ * @note See discussion in \ref SGSky-details "detailed class description".
*
- * lon specifies a rotation about the Z axis
- * lat specifies a rotation about the new Y axis
- * spin specifies a rotation about the new Z axis (this allows
- * additional orientation for the sunrise/set effects and is used
- * by the skydome and perhaps clouds. See discussion in detailed
- * class description.
- * @param view_pos specify your view position in world Cartesian
- * coordinates
- * @param zero_elev the zero elevation position in world Cartesian
- * coordinates
- * @param view_up the up vector in world Cartesian coordinates
- * @param lon current longitude
- * @param lat current latitude
- * @param alt current altitude
- * @param spin an offset angle for orienting the sky effects with the
- * sun position so sunset and sunrise effects look correct.
- * @param gst GMT side real time
- * @param sun_ra the sun's current right ascension
- * @param sun_dec the sun's current declination
- * @param sun_dist the sun's distance from the current view point
- * (to keep it inside your view volume.)
- * @param moon_ra the moon's current right ascension
- * @param moon_dec the moon's current declination
- * @param moon_dist the moon's distance from the current view point.
*/
- bool reposition( const SGSkyState &st, const SGEphemeris& eph, double dt = 0.0 );
+ bool reposition( const SGSkyState& sky_state,
+ const SGEphemeris& eph,
+ double dt = 0.0 );
/**
* Modify the given visibility based on cloud layers, thickness,
- * transition range, and simulated "puffs". See discussion in detailed
- * class description.
+ * transition range, and simulated "puffs".
+ *
+ * @note See discussion in \ref SGSky-details "detailed class description".
+ *
* @param alt current altitude
* @param time_factor amount of time since modify_vis() last called so
* we can scale effect rates properly despite variable frame rates.
*/
void modify_vis( float alt, float time_factor );
- osg::Node* getPreRoot() { return pre_root.get(); }
- osg::Node* getCloudRoot() { return cloud_root.get(); }
+ osg::Group* getPreRoot() { return pre_root.get(); }
+ osg::Group* getCloudRoot() { return cloud_root.get(); }
/**
* Specify the texture path (optional, defaults to current directory)
- * @param path base path to texture locations
+ *
+ * @param path Base path to texture locations
*/
- void texture_path( const string& path );
-
- /** Enable drawing of the sky. */
- inline void enable() {
- pre_selector->setValue(0, 1);
- }
+ void texture_path( const std::string& path );
/**
- * Disable drawing of the sky in the scene graph. The leaf node is still
- * there, how ever it won't be traversed on by ssgCullandRender()
+ * Get the current sun color
*/
- inline void disable() {
- pre_selector->setValue(0, 0);
- }
+ inline SGVec4f get_sun_color() { return oursun->get_color(); }
/**
- * Get the current sun color
+ * Get the current scene color
*/
- inline SGVec4f get_sun_color() { return oursun->get_color(); }
+ inline SGVec4f get_scene_color() { return oursun->get_scene_color(); }
/**
* Add a cloud layer.
/** @return current effective visibility */
- inline float get_visibility() const { return effective_visibility; }
+ float get_visibility() const { return effective_visibility; }
/** Set desired clear air visibility.
* @param v visibility in meters
*/
- inline void set_visibility( float v ) {
- effective_visibility = visibility = (v <= 25.0) ? 25.0 : v;
- }
+ void set_visibility( float v );
/** Get 3D cloud density */
- virtual double get_3dCloudDensity() const;
+ double get_3dCloudDensity() const;
/** Set 3D cloud density
* @param density 3D cloud density
*/
- virtual void set_3dCloudDensity(double density);
+ void set_3dCloudDensity(double density);
/** Get 3D cloud visibility range*/
- virtual float get_3dCloudVisRange() const;
+ float get_3dCloudVisRange() const;
/** Set 3D cloud visibility range
- * @param density 3D cloud visibility range
+ *
+ * @param vis 3D cloud visibility range
*/
- virtual void set_3dCloudVisRange(float vis);
+ void set_3dCloudVisRange(float vis);
-};
+ /** Get 3D cloud impostor distance*/
+ float get_3dCloudImpostorDistance() const;
+
+ /** Set 3D cloud impostor distance
+ *
+ * @param vis 3D cloud impostor distance
+ */
+ void set_3dCloudImpostorDistance(float vis);
+ /** Get 3D cloud LoD1 Range*/
+ float get_3dCloudLoD1Range() const;
+
+ /** Set 3D cloud LoD1 Range
+ * @param vis LoD1 Range
+ */
+ void set_3dCloudLoD1Range(float vis);
+
+ /** Get 3D cloud LoD2 Range*/
+ float get_3dCloudLoD2Range() const;
+
+ /** Set 3D cloud LoD2 Range
+ * @param vis LoD2 Range
+ */
+ void set_3dCloudLoD2Range(float vis);
+ /** Get 3D cloud impostor usage */
+ bool get_3dCloudUseImpostors() const;
+
+ /** Set 3D cloud impostor usage
+ *
+ * @param imp whether use impostors for 3D clouds
+ */
+ void set_3dCloudUseImpostors(bool imp);
+
+ /** Get 3D cloud wrapping */
+ bool get_3dCloudWrap() const;
+
+ /** Set 3D cloud wrapping
+ * @param wrap whether to wrap 3D clouds
+ */
+ void set_3dCloudWrap(bool wrap);
+
+ void set_clouds_enabled(bool enabled);
+
+};
#endif // _SG_SKY_HXX
projects / simgear.git / blobdiff