#endif
#include <GL/glut.h>
-#include "../XGL/xgl.h"
+#include <XGL/xgl.h>
#include <stdio.h>
-#include "GLUTkey.h"
-#include "fg_init.h"
-#include "views.h"
-
-#include "../Include/constants.h"
-#include "../Include/general.h"
-
-#include "../Aircraft/aircraft.h"
-#include "../Cockpit/cockpit.h"
-#include "../Joystick/joystick.h"
-#include "../Math/fg_geodesy.h"
-#include "../Math/mat3.h"
-#include "../Math/polar.h"
-#include "../Scenery/mesh.h"
-#include "../Scenery/scenery.h"
-#include "../Time/fg_time.h"
-#include "../Time/fg_timer.h"
-#include "../Time/sunpos.h"
-#include "../Weather/weather.h"
+#include <Main/GLUTkey.h>
+#include <Main/fg_init.h>
+#include <Main/views.h>
+
+#include <Include/constants.h>
+#include <Include/general.h>
+
+#include <Aircraft/aircraft.h>
+#include <Astro/moon.h>
+#include <Astro/sky.h>
+#include <Astro/stars.h>
+#include <Astro/sun.h>
+#include <Cockpit/cockpit.h>
+#include <Joystick/joystick.h>
+#include <Math/fg_geodesy.h>
+#include <Math/mat3.h>
+#include <Math/polar.h>
+#include <Scenery/mesh.h>
+#include <Scenery/scenery.h>
+#include <Scenery/tilemgr.h>
+#include <Time/event.h>
+#include <Time/fg_time.h>
+#include <Time/fg_timer.h>
+#include <Time/sunpos.h>
+#include <Weather/weather.h>
/* This is a record containing global housekeeping information */
/* view parameters */
static GLfloat win_ratio = 1.0;
-
-/* fog color */
-static GLfloat fgFogColor[4] = {0.65, 0.65, 0.85, 1.0};
+static GLint winWidth, winHeight;
/* temporary hack */
/* pointer to scenery structure */
/* static GLint scenery, runway; */
-double Simtime;
+/* double Simtime; */
/* Another hack */
int use_signals = 0;
/* Yet another hack. This one used by the HUD code. Michele */
int show_hud;
+/* Yet another other hack. Used for my prototype instrument code. (Durk) */
+int displayInstruments;
+
/**************************************************************************
* fgInitVisuals() -- Initialize various GL/view parameters
**************************************************************************/
-static void fgInitVisuals() {
+static void fgInitVisuals( void ) {
struct fgLIGHT *l;
struct fgTIME *t;
struct fgWEATHER *w;
t = &cur_time_params;
w = ¤t_weather;
- xglEnable( GL_DEPTH_TEST );
- /* xglFrontFace(GL_CW); */
- xglEnable( GL_CULL_FACE );
/* xglDisable( GL_DITHER ); */
xglEnable( GL_LIGHT0 );
xglLightfv( GL_LIGHT0, GL_POSITION, l->sun_vec );
- xglShadeModel( GL_FLAT ); /* xglShadeModel( GL_SMOOTH ); */
-
- xglEnable( GL_FOG );
xglFogi (GL_FOG_MODE, GL_LINEAR);
/* xglFogf (GL_FOG_START, 1.0); */
xglFogf (GL_FOG_END, w->visibility);
- xglFogfv (GL_FOG_COLOR, fgFogColor);
/* xglFogf (GL_FOG_DENSITY, w->visibility); */
- /* xglHint (GL_FOG_HINT, GL_FASTEST); */
+ xglHint (GL_FOG_HINT, GL_NICEST /* GL_FASTEST */ );
- /* initial screen color */
- xglClearColor(0.0, 0.0, 0.0, 1.0);
+ /* draw wire frame */
+ /* xglPolygonMode(GL_FRONT_AND_BACK,GL_LINE); */
}
* Update the view volume, position, and orientation
**************************************************************************/
-static void fgUpdateViewParams() {
+static void fgUpdateViewParams( void ) {
struct fgFLIGHT *f;
struct fgLIGHT *l;
struct fgTIME *t;
struct fgVIEW *v;
- double x_2, x_4, x_8, x_10;
- double light, ambient, diffuse, sky_brightness;
- /* if the 4th field is 0.0, this specifies a direction ... */
- /* clear color (sky) */
- GLfloat sky_color[4] = {0.60, 0.60, 0.90, 1.0};
- GLfloat white[4] = { 1.0, 1.0, 1.0, 1.0 };
-
f = ¤t_aircraft.flight;
l = &cur_light_params;
t = &cur_time_params;
v = ¤t_view;
- fgViewUpdate(f, v);
-
- /* Tell GL we are about to modify the projection parameters */
- xglMatrixMode(GL_PROJECTION);
- xglLoadIdentity();
- gluPerspective(55.0, 1.0/win_ratio, 1.0, 200000.0);
+ fgViewUpdate(f, v, l);
+
+ if (displayInstruments)
+ {
+ xglViewport(0, (GLint)(winHeight / 2 ) , (GLint)winWidth, (GLint)winHeight / 2);
+ /* Tell GL we are about to modify the projection parameters */
+ xglMatrixMode(GL_PROJECTION);
+ xglLoadIdentity();
+ gluPerspective(55.0, 2.0/win_ratio, 1.0, 100000.0);
+ }
+ else
+ {
+ xglViewport(0, 0 , (GLint)winWidth, (GLint) winHeight);
+ /* Tell GL we are about to modify the projection parameters */
+ xglMatrixMode(GL_PROJECTION);
+ xglLoadIdentity();
+ gluPerspective(55.0, 1.0/win_ratio, 1.0, 100000.0);
+ }
xglMatrixMode(GL_MODELVIEW);
xglLoadIdentity();
- /* set up our view volume */
+ /* set up our view volume (default) */
gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
v->view_pos.x + v->view_forward[0],
v->view_pos.y + v->view_forward[1],
v->view_pos.z + v->view_forward[2],
v->view_up[0], v->view_up[1], v->view_up[2]);
- /* set the sun position */
- xglLightfv( GL_LIGHT0, GL_POSITION, l->sun_vec );
-
- /* calculate lighting parameters based on sun's relative angle to
- * local up */
- /* ya kind'a have to plot this to see the magic */
-
- /* x = t->sun_angle^8 */
- x_2 = l->sun_angle * l->sun_angle;
- x_4 = x_2 * x_2;
- x_8 = x_4 * x_4;
- x_10 = x_8 * x_2;
-
- light = pow(1.1, -x_10 / 30.0);
- ambient = 0.3 * light;
- diffuse = 0.9 * light;
+ /* lock view horizontally towards sun (testing) */
+ /* gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
+ v->view_pos.x + v->surface_to_sun[0],
+ v->view_pos.y + v->surface_to_sun[1],
+ v->view_pos.z + v->surface_to_sun[2],
+ v->view_up[0], v->view_up[1], v->view_up[2]); */
- sky_brightness = 0.85 * pow(1.2, -x_8 / 20.0) + 0.15;
+ /* lock view horizontally towards south (testing) */
+ /* gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
+ v->view_pos.x + v->surface_south[0],
+ v->view_pos.y + v->surface_south[1],
+ v->view_pos.z + v->surface_south[2],
+ v->view_up[0], v->view_up[1], v->view_up[2]); */
- /* sky_brightness = 0.15; */ /* to force a dark sky (for testing) */
-
- if ( ambient < 0.1 ) { ambient = 0.1; }
- if ( diffuse < 0.0 ) { diffuse = 0.0; }
-
- if ( sky_brightness < 0.0 ) { sky_brightness = 0.0; }
-
- l->scene_ambient[0] = white[0] * ambient;
- l->scene_ambient[1] = white[1] * ambient;
- l->scene_ambient[2] = white[2] * ambient;
+ /* set the sun position */
+ xglLightfv( GL_LIGHT0, GL_POSITION, l->sun_vec );
+}
- l->scene_diffuse[0] = white[0] * diffuse;
- l->scene_diffuse[1] = white[1] * diffuse;
- l->scene_diffuse[2] = white[2] * diffuse;
- /* set lighting parameters */
- xglLightfv(GL_LIGHT0, GL_AMBIENT, l->scene_ambient );
- xglLightfv(GL_LIGHT0, GL_DIFFUSE, l->scene_diffuse );
+/*************************************************************************
+ * Draw a basic instrument panel
+ ************************************************************************/
+static void fgUpdateInstrViewParams( void ) {
+ xglViewport(0, 0 , (GLint)winWidth, (GLint)winHeight / 2);
+
+ xglMatrixMode(GL_PROJECTION);
+ xglPushMatrix();
+
+ xglLoadIdentity();
+ gluOrtho2D(0, 640, 0, 480);
+ xglMatrixMode(GL_MODELVIEW);
+ xglPushMatrix();
+ xglLoadIdentity();
+
+ xglColor3f(1.0, 1.0, 1.0);
+ xglIndexi(7);
+
+ xglDisable(GL_DEPTH_TEST);
+ xglDisable(GL_LIGHTING);
+
+ xglLineWidth(1);
+ xglColor3f (0.5, 0.5, 0.5);
+
+ xglBegin(GL_QUADS);
+ xglVertex2f(0.0, 0.00);
+ xglVertex2f(0.0, 480.0);
+ xglVertex2f(640.0,480.0);
+ xglVertex2f(640.0, 0.0);
+ xglEnd();
- /* set fog color */
- l->scene_fog[0] = fgFogColor[0] * (ambient + diffuse);
- l->scene_fog[1] = fgFogColor[1] * (ambient + diffuse);
- l->scene_fog[2] = fgFogColor[2] * (ambient + diffuse);
- l->scene_fog[3] = fgFogColor[3];
- xglFogfv (GL_FOG_COLOR, l->scene_fog);
-
- /* set sky color */
- l->scene_clear[0] = sky_color[0] * sky_brightness;
- l->scene_clear[1] = sky_color[1] * sky_brightness;
- l->scene_clear[2] = sky_color[2] * sky_brightness;
- l->scene_clear[3] = sky_color[3];
-
- xglClearColor(l->scene_clear[0], l->scene_clear[1],
- l->scene_clear[2], l->scene_clear[3]);
+ xglRectf(0.0,0.0, 640, 480);
+ xglEnable(GL_DEPTH_TEST);
+ xglEnable(GL_LIGHTING);
+ xglMatrixMode(GL_PROJECTION);
+ xglPopMatrix();
+ xglMatrixMode(GL_MODELVIEW);
+ xglPopMatrix();
}
* Update all Visuals (redraws anything graphics related)
**************************************************************************/
-static void fgUpdateVisuals( void ) {
+static void fgRenderFrame( void ) {
+ struct fgLIGHT *l;
+ struct fgTIME *t;
+ struct fgVIEW *v;
+ double angle;
+ GLfloat white[4] = { 1.0, 1.0, 1.0, 1.0 };
+
+ l = &cur_light_params;
+ t = &cur_time_params;
+ v = ¤t_view;
+
/* update view volume parameters */
fgUpdateViewParams();
- xglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+ xglClear( GL_DEPTH_BUFFER_BIT /* | GL_COLOR_BUFFER_BIT */ );
/* Tell GL we are switching to model view parameters */
xglMatrixMode(GL_MODELVIEW);
/* xglLoadIdentity(); */
- /* draw scenery */
- fgSceneryRender();
+ /* draw sky */
+ xglDisable( GL_DEPTH_TEST );
+ xglDisable( GL_LIGHTING );
+ xglDisable( GL_CULL_FACE );
+ xglDisable( GL_FOG );
+ xglShadeModel( GL_SMOOTH );
+ fgSkyRender();
+
+ /* setup transformation for drawing astronomical objects */
+ xglPushMatrix();
+ /* Translate to view position */
+ xglTranslatef( v->view_pos.x, v->view_pos.y, v->view_pos.z );
+ /* Rotate based on gst (side real time) */
+ angle = t->gst * 15.041085; /* should be 15.041085, Curt thought it was 15*/
+ /* printf("Rotating astro objects by %.2f degrees\n",angle); */
+ xglRotatef( angle, 0.0, 0.0, -1.0 );
+
+ /* draw stars and planets */
+ fgStarsRender();
+
+ /* draw the sun */
+ fgSunRender();
- /* draw astronomical objects */
- fgAstroRender();
+ /* render the moon */
+ xglEnable( GL_LIGHTING );
+ /* set lighting parameters */
+ xglLightfv(GL_LIGHT0, GL_AMBIENT, white );
+ xglLightfv(GL_LIGHT0, GL_DIFFUSE, white );
+ xglEnable( GL_CULL_FACE );
+ fgMoonRender();
+
+ xglPopMatrix();
+
+ /* draw scenery */
+ xglShadeModel( GL_SMOOTH );
+ xglEnable( GL_DEPTH_TEST );
+ xglEnable( GL_FOG );
+ xglFogfv (GL_FOG_COLOR, l->fog_color);
+ /* set lighting parameters */
+ xglLightfv(GL_LIGHT0, GL_AMBIENT, l->scene_ambient );
+ xglLightfv(GL_LIGHT0, GL_DIFFUSE, l->scene_diffuse );
+ fgTileMgrRender();
+ /* fgSceneryRender(); */
/* display HUD */
- if( show_hud )
+ if( show_hud ) {
fgCockpitUpdate();
+ }
+
+ /* display instruments */
+ if (displayInstruments) {
+ fgUpdateInstrViewParams();
+ }
#ifdef GLUT
xglutSwapBuffers();
/* printf("updating flight model x %d\n", multi_loop); */
fgFlightModelUpdate(FG_LARCSIM, f, multi_loop);
- /* refresh shared sun position and sun_vec */
- fgUpdateSunPos(scenery.center);
-
/* update the view angle */
for ( i = 0; i < multi_loop; i++ ) {
if ( fabs(v->goal_view_offset - v->view_offset) < 0.05 ) {
}
-void fgInitTimeDepCalcs() {
+void fgInitTimeDepCalcs( void ) {
/* initialize timer */
#ifdef USE_ITIMER
}
*/
+
/* What should we do when we have nothing else to do? How about get
* ready for the next move and update the display? */
static void fgMainLoop( void ) {
struct fgFLIGHT *f;
struct fgTIME *t;
+ printf("Running Main Loop\n");
+ printf("======= ==== ====\n");
+
a = ¤t_aircraft;
f = &a->flight;
t = &cur_time_params;
fgElevSet( -joy_y );
fgAileronSet( joy_x ); */
- /* update the weather for our current position */
- fgWeatherUpdate(FG_Longitude * RAD_TO_ARCSEC,
- FG_Latitude * RAD_TO_ARCSEC,
- FG_Altitude * FEET_TO_METER);
-
/* Calculate model iterations needed */
elapsed = fgGetTimeInterval();
printf("Time interval is = %d, previous remainder is = %d\n", elapsed,
printf("Model iterations needed = %d, new remainder = %d\n", multi_loop,
remainder);
+ /* Run flight model */
if ( ! use_signals ) {
/* flight model */
fgUpdateTimeDepCalcs(multi_loop);
* eventually */
cur_elev = mesh_altitude(FG_Longitude * RAD_TO_ARCSEC,
FG_Latitude * RAD_TO_ARCSEC);
- printf("Ground elevation is %.2f meters here.\n", cur_elev);
+ /* printf("Ground elevation is %.2f meters here.\n", cur_elev); */
/* FG_Runway_altitude = cur_elev * METER_TO_FEET; */
if ( FG_Altitude * FEET_TO_METER < cur_elev + 3.758099) {
fgAircraftOutputCurrent(a);
+ /* see if we need to load any new scenery tiles */
+ /* fgTileMgrUpdate(); */
+
+ /* Process/manage pending events */
+ fgEventProcess();
+
/* redraw display */
- fgUpdateVisuals();
+ fgRenderFrame();
+
+ printf("\n");
}
win_ratio = (GLfloat) height / (GLfloat) width;
}
- /* Inform gl of our view window size */
- xglViewport(0, 0, (GLint)width, (GLint)height);
+ winWidth = width;
+ winHeight = height;
+
+ /* Inform gl of our view window size (now handled elsewhere) */
+ /* xglViewport(0, 0, (GLint)width, (GLint)height); */
fgUpdateViewParams();
- xglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+ /* xglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); */
}
f = ¤t_aircraft.flight;
- printf("Flight Gear: prototype version %s\n\n", VERSION);
+ printf("Flight Gear: Version %s\n\n", VERSION);
/**********************************************************************
* Initialize the Window/Graphics environment.
xglutIdleFunc( fgMainLoop );
/* draw the scene */
- xglutDisplayFunc( fgUpdateVisuals );
+ xglutDisplayFunc( fgRenderFrame );
/* pass control off to the GLUT event handler */
glutMainLoop();
#ifdef NO_PRINTF
#include <stdarg.h>
- int printf (const char *format, ...) {
- }
+ int printf (const char *format, ...) {}
#endif
/* $Log$
-/* Revision 1.33 1997/12/15 23:54:45 curt
-/* Add xgl wrappers for debugging.
-/* Generate terrain normals on the fly.
+/* Revision 1.50 1998/01/19 19:27:07 curt
+/* Merged in make system changes from Bob Kuehne <rpk@sgi.com>
+/* This should simplify things tremendously.
/*
+ * Revision 1.49 1998/01/19 18:40:31 curt
+ * Tons of little changes to clean up the code and to remove fatal errors
+ * when building with the c++ compiler.
+ *
+ * Revision 1.48 1998/01/19 18:35:46 curt
+ * Minor tweaks and fixes for cygwin32.
+ *
+ * Revision 1.47 1998/01/13 00:23:08 curt
+ * Initial changes to support loading and management of scenery tiles. Note,
+ * there's still a fair amount of work left to be done.
+ *
+ * Revision 1.46 1998/01/08 02:22:06 curt
+ * Beginning to integrate Tile management subsystem.
+ *
+ * Revision 1.45 1998/01/07 03:18:55 curt
+ * Moved astronomical stuff from .../Src/Scenery to .../Src/Astro/
+ *
+ * Revision 1.44 1997/12/30 22:22:31 curt
+ * Further integration of event manager.
+ *
+ * Revision 1.43 1997/12/30 20:47:43 curt
+ * Integrated new event manager with subsystem initializations.
+ *
+ * Revision 1.42 1997/12/30 16:36:47 curt
+ * Merged in Durk's changes ...
+ *
+ * Revision 1.41 1997/12/30 13:06:56 curt
+ * A couple lighting tweaks ...
+ *
+ * Revision 1.40 1997/12/30 01:38:37 curt
+ * Switched back to per vertex normals and smooth shading for terrain.
+ *
+ * Revision 1.39 1997/12/22 23:45:45 curt
+ * First stab at sunset/sunrise sky glow effects.
+ *
+ * Revision 1.38 1997/12/22 04:14:28 curt
+ * Aligned sky with sun so dusk/dawn effects can be correct relative to the sun.
+ *
+ * Revision 1.37 1997/12/19 23:34:03 curt
+ * Lot's of tweaking with sky rendering and lighting.
+ *
+ * Revision 1.36 1997/12/19 16:44:57 curt
+ * Working on scene rendering order and options.
+ *
+ * Revision 1.35 1997/12/18 23:32:32 curt
+ * First stab at sky dome actually starting to look reasonable. :-)
+ *
+ * Revision 1.34 1997/12/17 23:13:34 curt
+ * Began working on rendering a sky.
+ *
+ * Revision 1.33 1997/12/15 23:54:45 curt
+ * Add xgl wrappers for debugging.
+ * Generate terrain normals on the fly.
+ *
* Revision 1.32 1997/12/15 20:59:08 curt
* Misc. tweaks.
*
projects / flightgear.git / blobdiff