-/**************************************************************************
- * sky.c -- model sky with an upside down "bowl"
- *
- * Written by Curtis Olson, started December 1997.
- *
- * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id$
- * (Log is kept at end of this file)
- **************************************************************************/
+// sky.cxx -- model sky with an upside down "bowl"
+//
+// Written by Curtis Olson, started December 1997.
+//
+// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+// (Log is kept at end of this file)
#ifdef HAVE_CONFIG_H
#include <GL/glut.h>
#include <XGL/xgl.h>
-#include <Aircraft/aircraft.h>
+#include <Aircraft/aircraft.hxx>
#include <Debug/fg_debug.h>
-#include <Flight/flight.h>
+#include <Flight/flight.hxx>
#include <Include/fg_constants.h>
#include <Main/views.hxx>
#include <Math/fg_random.h>
#include "sky.hxx"
-/*
-#include <Include/general.h>
-*/
-
-/* in meters of course */
+// in meters of course
#define CENTER_ELEV 25000.0
#define INNER_RADIUS 50000.0
static float outer_color[12][4];
-/* Calculate the sky structure vertices */
+// Calculate the sky structure vertices
void fgSkyVerticesInit( void ) {
float theta;
int i;
inner_vertex[i][1] = sin(theta) * INNER_RADIUS;
inner_vertex[i][2] = INNER_ELEV;
- /* printf(" %.2f %.2f\n", cos(theta) * INNER_RADIUS,
- sin(theta) * INNER_RADIUS); */
+ // printf(" %.2f %.2f\n", cos(theta) * INNER_RADIUS,
+ // sin(theta) * INNER_RADIUS);
middle_vertex[i][0] = cos((double)theta) * MIDDLE_RADIUS;
middle_vertex[i][1] = sin((double)theta) * MIDDLE_RADIUS;
}
-/* (Re)calculate the sky colors at each vertex */
+// (Re)calculate the sky colors at each vertex
void fgSkyColorsInit( void ) {
fgLIGHT *l;
double sun_angle, diff;
fgPrintf( FG_ASTRO, FG_INFO,
" Generating the sky colors for each vertex.\n" );
- /* setup for the possibility of sunset effects */
+ // setup for the possibility of sunset effects
sun_angle = l->sun_angle * RAD_TO_DEG;
// fgPrintf( FG_ASTRO, FG_INFO,
// " Sun angle in degrees = %.2f\n", sun_angle);
if ( (sun_angle > 80.0) && (sun_angle < 100.0) ) {
- /* 0.0 - 0.4 */
+ // 0.0 - 0.4
outer_param[0] = (10.0 - fabs(90.0 - sun_angle)) / 25.0;
outer_param[1] = (10.0 - fabs(90.0 - sun_angle)) / 35.0;
outer_param[2] = 0.0;
outer_diff[0] = outer_diff[1] = outer_diff[2] = 0.0;
middle_diff[0] = middle_diff[1] = middle_diff[2] = 0.0;
}
- /* printf(" outer_red_param = %.2f outer_red_diff = %.2f\n",
- outer_red_param, outer_red_diff); */
+ // printf(" outer_red_param = %.2f outer_red_diff = %.2f\n",
+ // outer_red_param, outer_red_diff);
- /* calculate transition colors between sky and fog */
+ // calculate transition colors between sky and fog
for ( j = 0; j < 3; j++ ) {
outer_amt[j] = outer_param[j];
middle_amt[j] = middle_param[j];
for ( j = 0; j < 3; j++ ) {
diff = l->sky_color[j] - l->fog_color[j];
- /* printf("sky = %.2f fog = %.2f diff = %.2f\n",
- l->sky_color[j], l->fog_color[j], diff); */
+ // printf("sky = %.2f fog = %.2f diff = %.2f\n",
+ // l->sky_color[j], l->fog_color[j], diff);
inner_color[i][j] = l->sky_color[j] - diff * 0.3;
middle_color[i][j] = l->sky_color[j] - diff * 0.9 + middle_amt[j];
for ( j = 0; j < 3; j++ ) {
diff = l->sky_color[j] - l->fog_color[j];
- /* printf("sky = %.2f fog = %.2f diff = %.2f\n",
- l->sky_color[j], l->fog_color[j], diff); */
+ // printf("sky = %.2f fog = %.2f diff = %.2f\n",
+ // l->sky_color[j], l->fog_color[j], diff);
inner_color[i][j] = l->sky_color[j] - diff * 0.3;
middle_color[i][j] = l->sky_color[j] - diff * 0.9 + middle_amt[j];
}
-/* Initialize the sky structure and colors */
+// Initialize the sky structure and colors
void fgSkyInit( void ) {
fgPrintf(FG_ASTRO, FG_INFO, "Initializing the sky\n");
fgSkyVerticesInit();
- /* regester fgSkyColorsInit() as an event to be run periodically */
+ // regester fgSkyColorsInit() as an event to be run periodically
global_events.Register( "fgSkyColorsInit()", fgSkyColorsInit,
fgEVENT::FG_EVENT_READY, 30000);
}
-/* Draw the Sky */
+// Draw the Sky
void fgSkyRender( void ) {
fgFLIGHT *f;
fgLIGHT *l;
l = &cur_light_params;
v = ¤t_view;
- /* printf("Rendering the sky.\n"); */
+ // printf("Rendering the sky.\n");
// calculate the proper colors
for ( i = 0; i < 3; i++ ) {
diff = l->sky_color[i] - l->adj_fog_color[i];
- /* printf("sky = %.2f fog = %.2f diff = %.2f\n",
- l->sky_color[j], l->adj_fog_color[j], diff); */
+ // printf("sky = %.2f fog = %.2f diff = %.2f\n",
+ // l->sky_color[j], l->adj_fog_color[j], diff);
inner_color[i] = l->sky_color[i] - diff * 0.3;
middle_color[i] = l->sky_color[i] - diff * 0.9;
xglPushMatrix();
- /* Translate to view position */
+ // Translate to view position
xglTranslatef( v->cur_zero_elev.x(),
v->cur_zero_elev.y(),
v->cur_zero_elev.z() );
- /* printf(" Translated to %.2f %.2f %.2f\n",
- v->cur_zero_elev.x, v->cur_zero_elev.y, v->cur_zero_elev.z ); */
+ // printf(" Translated to %.2f %.2f %.2f\n",
+ // v->cur_zero_elev.x, v->cur_zero_elev.y, v->cur_zero_elev.z );
- /* Rotate to proper orientation */
- /* printf(" lon = %.2f lat = %.2f\n", FG_Longitude * RAD_TO_DEG,
- FG_Latitude * RAD_TO_DEG); */
+ // Rotate to proper orientation
+ // printf(" lon = %.2f lat = %.2f\n", FG_Longitude * RAD_TO_DEG,
+ // FG_Latitude * RAD_TO_DEG);
xglRotatef( FG_Longitude * RAD_TO_DEG, 0.0, 0.0, 1.0 );
xglRotatef( 90.0 - FG_Latitude * RAD_TO_DEG, 0.0, 1.0, 0.0 );
xglRotatef( l->sun_rotation * RAD_TO_DEG, 0.0, 0.0, 1.0 );
- /* Draw inner/center section of sky*/
+ // Draw inner/center section of sky*/
xglBegin( GL_TRIANGLE_FAN );
xglColor4fv(l->sky_color);
xglVertex3f(0.0, 0.0, CENTER_ELEV);
xglBegin( GL_TRIANGLE_STRIP );
for ( i = 0; i < 12; i++ ) {
xglColor4fv( middle_color );
- /* printf("middle_color[%d] = %.2f %.2f %.2f %.2f\n", i,
- middle_color[i][0], middle_color[i][1], middle_color[i][2],
- middle_color[i][3]); */
+ // printf("middle_color[%d] = %.2f %.2f %.2f %.2f\n", i,
+ // middle_color[i][0], middle_color[i][1], middle_color[i][2],
+ // middle_color[i][3]);
// xglColor4f(1.0, 0.0, 0.0, 1.0);
xglVertex3fv( middle_vertex[i] );
xglColor4fv( inner_color );
- /* printf("inner_color[%d] = %.2f %.2f %.2f %.2f\n", i,
- inner_color[i][0], inner_color[i][1], inner_color[i][2],
- inner_color[i][3]); */
+ // printf("inner_color[%d] = %.2f %.2f %.2f %.2f\n", i,
+ // inner_color[i][0], inner_color[i][1], inner_color[i][2],
+ // inner_color[i][3]);
// xglColor4f(0.0, 0.0, 1.0, 1.0);
xglVertex3fv( inner_vertex[i] );
}
xglVertex3fv( inner_vertex[0] );
xglEnd();
- /* Draw the outer ring */
+ // Draw the outer ring
xglBegin( GL_TRIANGLE_STRIP );
for ( i = 0; i < 12; i++ ) {
xglColor4fv( outer_color );
xglVertex3fv( middle_vertex[0] );
xglEnd();
- /* Draw the bottom skirt */
+ // Draw the bottom skirt
xglBegin( GL_TRIANGLE_STRIP );
xglColor4fv( outer_color );
for ( i = 0; i < 12; i++ ) {
}
-/* $Log$
-/* Revision 1.11 1998/10/16 00:52:19 curt
-/* Converted to Point3D class.
-/*
- * Revision 1.10 1998/08/29 13:07:16 curt
- * Rewrite of event manager thanks to Bernie Bright.
- *
- * Revision 1.9 1998/08/22 01:18:59 curt
- * Minor tweaks to avoid using unitialized memory.
- *
- * Revision 1.8 1998/08/12 21:40:44 curt
- * Sky now tracks adjusted fog color so it blends well with terrain.
- *
- * Revision 1.7 1998/07/22 21:39:21 curt
- * Lower skirt tracks adjusted fog color, not fog color.
- *
- * Revision 1.6 1998/05/23 14:07:14 curt
- * Use new C++ events class.
- *
- * Revision 1.5 1998/04/28 01:19:02 curt
- * Type-ified fgTIME and fgVIEW
- *
- * Revision 1.4 1998/04/26 05:10:01 curt
- * "struct fgLIGHT" -> "fgLIGHT" because fgLIGHT is typedef'd.
- *
- * Revision 1.3 1998/04/25 22:06:25 curt
- * Edited cvs log messages in source files ... bad bad bad!
- *
- * Revision 1.2 1998/04/24 00:45:03 curt
- * Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
- * Fixed a bug when generating sky colors.
- *
- * Revision 1.1 1998/04/22 13:21:32 curt
- * C++ - ifing the code a bit.
- *
- * Revision 1.9 1998/04/03 21:52:50 curt
- * Converting to Gnu autoconf system.
- *
- * Revision 1.8 1998/03/09 22:47:25 curt
- * Incorporated Durk's updates.
- *
- * Revision 1.7 1998/02/19 13:05:49 curt
- * Incorporated some HUD tweaks from Michelle America.
- * Tweaked the sky's sunset/rise colors.
- * Other misc. tweaks.
- *
- * Revision 1.6 1998/02/07 15:29:32 curt
- * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
- * <chotchkiss@namg.us.anritsu.com>
- *
- * Revision 1.5 1998/01/27 00:47:48 curt
- * Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
- * system and commandline/config file processing code.
- *
- * Revision 1.4 1998/01/26 15:54:28 curt
- * Added a "skirt" to try to help hide gaps between scenery and sky. This will
- * have to be revisited in the future.
- *
- * Revision 1.3 1998/01/19 19:26:59 curt
- * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
- * This should simplify things tremendously.
- *
- * Revision 1.2 1998/01/19 18:40:17 curt
- * Tons of little changes to clean up the code and to remove fatal errors
- * when building with the c++ compiler.
- *
- * Revision 1.1 1998/01/07 03:16:19 curt
- * Moved from .../Src/Scenery/ to .../Src/Astro/
- *
- * Revision 1.11 1997/12/30 22:22:38 curt
- * Further integration of event manager.
- *
- * Revision 1.10 1997/12/30 20:47:53 curt
- * Integrated new event manager with subsystem initializations.
- *
- * Revision 1.9 1997/12/30 13:06:57 curt
- * A couple lighting tweaks ...
- *
- * Revision 1.8 1997/12/23 04:58:38 curt
- * Tweaked the sky coloring a bit to build in structures to allow finer rgb
- * control.
- *
- * Revision 1.7 1997/12/22 23:45:48 curt
- * First stab at sunset/sunrise sky glow effects.
- *
- * Revision 1.6 1997/12/22 04:14:34 curt
- * Aligned sky with sun so dusk/dawn effects can be correct relative to the sun.
- *
- * Revision 1.5 1997/12/19 23:34:59 curt
- * Lot's of tweaking with sky rendering and lighting.
- *
- * Revision 1.4 1997/12/19 16:45:02 curt
- * Working on scene rendering order and options.
- *
- * Revision 1.3 1997/12/18 23:32:36 curt
- * First stab at sky dome actually starting to look reasonable. :-)
- *
- * Revision 1.2 1997/12/18 04:07:03 curt
- * Worked on properly translating and positioning the sky dome.
- *
- * Revision 1.1 1997/12/17 23:14:30 curt
- * Initial revision.
- * Begin work on rendering the sky. (Rather than just using a clear screen.)
- *
- */
+// $Log$
+// Revision 1.12 1998/10/16 23:27:18 curt
+// C++-ifying.
+//
+// Revision 1.11 1998/10/16 00:52:19 curt
+// Converted to Point3D class.
+//
+// Revision 1.10 1998/08/29 13:07:16 curt
+// Rewrite of event manager thanks to Bernie Bright.
+//
+// Revision 1.9 1998/08/22 01:18:59 curt
+// Minor tweaks to avoid using unitialized memory.
+//
+// Revision 1.8 1998/08/12 21:40:44 curt
+// Sky now tracks adjusted fog color so it blends well with terrain.
+//
+// Revision 1.7 1998/07/22 21:39:21 curt
+// Lower skirt tracks adjusted fog color, not fog color.
+//
+// Revision 1.6 1998/05/23 14:07:14 curt
+// Use new C++ events class.
+//
+// Revision 1.5 1998/04/28 01:19:02 curt
+// Type-ified fgTIME and fgVIEW
+//
+// Revision 1.4 1998/04/26 05:10:01 curt
+// "struct fgLIGHT" -> "fgLIGHT" because fgLIGHT is typedef'd.
+//
+// Revision 1.3 1998/04/25 22:06:25 curt
+// Edited cvs log messages in source files ... bad bad bad!
+//
+// Revision 1.2 1998/04/24 00:45:03 curt
+// Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
+// Fixed a bug when generating sky colors.
+//
+// Revision 1.1 1998/04/22 13:21:32 curt
+// C++ - ifing the code a bit.
+//
+// Revision 1.9 1998/04/03 21:52:50 curt
+// Converting to Gnu autoconf system.
+//
+// Revision 1.8 1998/03/09 22:47:25 curt
+// Incorporated Durk's updates.
+//
+// Revision 1.7 1998/02/19 13:05:49 curt
+// Incorporated some HUD tweaks from Michelle America.
+// Tweaked the sky's sunset/rise colors.
+// Other misc. tweaks.
+//
+// Revision 1.6 1998/02/07 15:29:32 curt
+// Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
+// <chotchkiss@namg.us.anritsu.com>
+//
+// Revision 1.5 1998/01/27 00:47:48 curt
+// Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
+// system and commandline/config file processing code.
+//
+// Revision 1.4 1998/01/26 15:54:28 curt
+// Added a "skirt" to try to help hide gaps between scenery and sky. This will
+// have to be revisited in the future.
+//
+// Revision 1.3 1998/01/19 19:26:59 curt
+// Merged in make system changes from Bob Kuehne <rpk@sgi.com>
+// This should simplify things tremendously.
+//
+// Revision 1.2 1998/01/19 18:40:17 curt
+// Tons of little changes to clean up the code and to remove fatal errors
+// when building with the c++ compiler.
+//
+// Revision 1.1 1998/01/07 03:16:19 curt
+// Moved from .../Src/Scenery/ to .../Src/Astro/
+//
+// Revision 1.11 1997/12/30 22:22:38 curt
+// Further integration of event manager.
+//
+// Revision 1.10 1997/12/30 20:47:53 curt
+// Integrated new event manager with subsystem initializations.
+//
+// Revision 1.9 1997/12/30 13:06:57 curt
+// A couple lighting tweaks ...
+//
+// Revision 1.8 1997/12/23 04:58:38 curt
+// Tweaked the sky coloring a bit to build in structures to allow finer rgb
+// control.
+//
+// Revision 1.7 1997/12/22 23:45:48 curt
+// First stab at sunset/sunrise sky glow effects.
+//
+// Revision 1.6 1997/12/22 04:14:34 curt
+// Aligned sky with sun so dusk/dawn effects can be correct relative to the sun.
+//
+// Revision 1.5 1997/12/19 23:34:59 curt
+// Lot's of tweaking with sky rendering and lighting.
+//
+// Revision 1.4 1997/12/19 16:45:02 curt
+// Working on scene rendering order and options.
+//
+// Revision 1.3 1997/12/18 23:32:36 curt
+// First stab at sky dome actually starting to look reasonable. :-)
+//
+// Revision 1.2 1997/12/18 04:07:03 curt
+// Worked on properly translating and positioning the sky dome.
+//
+// Revision 1.1 1997/12/17 23:14:30 curt
+// Initial revision.
+// Begin work on rendering the sky. (Rather than just using a clear screen.)
+//
+
projects / flightgear.git / blobdiff