- update Sky code
git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@4742 30fe4595-0a0c-4342-8851-515496e4dcbd Former-commit-id: fe58d84e135161de3b80a22013c0307429b9ae19 Former-commit-id: ee48d81ed9ad6bb73e6c4b4d204e41d072a29b12
This commit is contained in:
torcs-ng
parent
2e14c32862
commit
03550e9138
6 changed files with 839 additions and 277 deletions
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@ -5,7 +5,8 @@ SET(SSGGRAPH_SOURCES CarSoundData.cpp CarSoundData.h
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SoundInterface.cpp SoundInterface.h
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PlibSoundInterface.cpp PlibSoundInterface.h
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OpenalSoundInterface.cpp OpenalSoundInterface.h
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grCelestialBody.cpp grCloudLayer.cpp grSky.cpp grSky.h
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#grCelestialBody.cpp
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grMoon.cpp grSun.cpp grCloudLayer.cpp grSky.cpp grSky.h
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grSkyDome.cpp grSphere.cpp grSphere.h grStars.cpp
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grboard.cpp grboard.h grcam.cpp grcam.h grcar.cpp grcar.h
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grcarlight.cpp grcarlight.h grmain.cpp grmain.h
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147
src/modules/graphic/ssggraph/grMoon.cpp
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147
src/modules/graphic/ssggraph/grMoon.cpp
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@ -0,0 +1,147 @@
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/***************************************************************************
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file : grMoon.cpp
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copyright : (C) 2009 by Xavier Bertaux (based on ssgasky plib code)
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web : http://www.speed-dreams.org
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version : $Id: grSky.cpp 3162 2010-12-05 13:11:22Z pouillot $
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "grSky.h"
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#include "grSphere.h"
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static int grMoonOrbPreDraw( ssgEntity *e )
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{
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ssgLeaf *f = (ssgLeaf *)e;
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if ( f -> hasState () ) f->getState()->apply() ;
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glPushAttrib( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT | GL_ENABLE_BIT );
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glDisable( GL_DEPTH_TEST );
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glDisable( GL_FOG );
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glBlendFunc ( GL_SRC_ALPHA, GL_ONE );
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return true;
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}
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static int grMoonOrbPostDraw( ssgEntity *e )
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{
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glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
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glPopAttrib();
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return true;
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}
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// Constructor
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cGrMoon::cGrMoon( void ) :
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prev_moon_angle(-1)
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{
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}
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// Destructor
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cGrMoon::~cGrMoon( void )
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{
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}
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// build the moon object
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ssgBranch * cGrMoon::build( const char *moon_path, double moon_size )
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{
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orb_state = new ssgSimpleState();
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orb_state->setTexture( moon_path );
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orb_state->setShadeModel( GL_SMOOTH );
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orb_state->enable( GL_LIGHTING );
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orb_state->enable( GL_CULL_FACE );
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orb_state->enable( GL_TEXTURE_2D );
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orb_state->enable( GL_COLOR_MATERIAL );
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orb_state->setColourMaterial( GL_DIFFUSE );
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orb_state->setMaterial( GL_AMBIENT, 0, 0, 0, 1.0 );
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orb_state->setMaterial( GL_EMISSION, 0.0, 0.0, 0.0, 1 );
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orb_state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
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orb_state->enable( GL_BLEND );
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orb_state->enable( GL_ALPHA_TEST );
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orb_state->setAlphaClamp( 0.01 );
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cl = new ssgColourArray( 1 );
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sgVec4 color;
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sgSetVec4( color, 1.0, 1.0, 1.0, 1.0 );
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cl->add( color );
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ssgBranch *orb = grMakeSphere( orb_state, cl, moon_size, 15, 15,
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grMoonOrbPreDraw, grMoonOrbPostDraw );
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repaint( 0.0 );
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moon_transform = new ssgTransform;
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moon_transform->addKid( orb );
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return moon_transform;
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}
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bool cGrMoon::repaint( double moon_angle )
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{
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if (prev_moon_angle != moon_angle)
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{
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prev_moon_angle = moon_angle;
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float moon_factor = 4*cos(moon_angle);
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if (moon_factor > 1) moon_factor = 1.0;
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if (moon_factor < -1) moon_factor = -1.0;
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moon_factor = moon_factor/2 + 0.5;
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sgVec4 color;
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color[1] = sqrt(moon_factor);
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color[0] = sqrt(color[1]);
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color[2] = moon_factor * moon_factor;
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color[2] *= color[2];
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color[3] = 1.0;
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grGammaCorrectRGB( color );
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float *ptr;
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ptr = cl->get( 0 );
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sgCopyVec4( ptr, color );
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}
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return true;
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}
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bool cGrMoon::reposition( sgVec3 p, double angle, double rightAscension, double declination, double moon_dist )
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{
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sgMat4 T1, T2, GST, RA, DEC;
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sgVec3 axis;
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sgVec3 v;
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sgMakeTransMat4( T1, p );
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sgSetVec3( axis, 0.0, 0.0, -1.0 );
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sgMakeRotMat4( GST, (float)angle, axis );
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sgSetVec3( axis, 0.0, 0.0, 1.0 );
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sgMakeRotMat4( RA, ((float)rightAscension * SGD_RADIANS_TO_DEGREES) - 90.0, axis );
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sgSetVec3( axis, 1.0, 0.0, 0.0 );
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sgMakeRotMat4( DEC, (float)declination * SGD_RADIANS_TO_DEGREES, axis );
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sgSetVec3( v, 0.0, moon_dist, 0.0 );
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sgMakeTransMat4( T2, v );
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sgMat4 TRANSFORM;
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sgCopyMat4( TRANSFORM, T1 );
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sgPreMultMat4( TRANSFORM, GST );
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sgPreMultMat4( TRANSFORM, RA );
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sgPreMultMat4( TRANSFORM, DEC );
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sgPreMultMat4( TRANSFORM, T2 );
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sgCoord skypos;
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sgSetCoord( &skypos, TRANSFORM );
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moon_transform->setTransform( &skypos );
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return true;
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}
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@ -22,36 +22,39 @@
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// Used for rise/set effects (flat earth - no rotation of skydome considered here )
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void calc_celestial_angles( const sgVec3 body, const sgVec3 view, double& angle, double& rotation )
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{
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sgVec3 pos;
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sgSubVec3(pos, body, view);
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angle = (90*SGD_DEGREES_TO_RADIANS) - atan2(pos[2], sqrt(pos[0]*pos[0] + pos[1]*pos[1]));
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rotation = (90*SGD_DEGREES_TO_RADIANS) - atan2(pos[0], pos[1]);
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sgVec3 pos;
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sgSubVec3(pos, body, view);
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angle = (90*SGD_DEGREES_TO_RADIANS) - atan2(pos[2], sqrt(pos[0]*pos[0] + pos[1]*pos[1]));
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rotation = (90*SGD_DEGREES_TO_RADIANS) - atan2(pos[0], pos[1]);
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}
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cGrSky::cGrSky( void )
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{
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dome = 0;
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planets = 0;
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stars = 0;
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sol_ref = 0;
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pre_root = 0;
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post_root = 0;
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dome = 0;
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sun = 0;
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moon = 0;
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planets = 0;
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stars = 0;
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pre_root = 0;
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post_root = 0;
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effective_visibility = visibility = 10000.0;
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effective_visibility = visibility = 10000.0;
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// near cloud visibility state variables
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in_puff = false;
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puff_length = 0;
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puff_progression = 0;
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ramp_up = 0.15;
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ramp_down = 0.15;
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// near cloud visibility state variables
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in_puff = false;
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puff_length = 0;
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puff_progression = 0;
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ramp_up = 0.15;
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ramp_down = 0.15;
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}
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cGrSky::~cGrSky( void )
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{
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delete dome;
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delete sun;
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delete moon;
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delete planets;
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delete stars;
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delete pre_root;
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@ -60,15 +63,18 @@ cGrSky::~cGrSky( void )
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void cGrSky::build( double h_radius, double v_radius,
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const char *sun_path, const char *ihalo_path, const char *ohalo_path,
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float sun_size, const char *moon_path, float moon_size,
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int nplanets, sgdVec3 *planet_data,
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int nstars, sgdVec3 *star_data )
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int nstars, sgdVec3 *star_data, float humidity, float visibility )
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{
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delete dome;
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delete sun;
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delete moon;
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delete planets;
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delete stars;
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delete pre_root;
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delete post_root;
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bodies.removeAll();
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clouds.removeAll();
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// build new
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@ -81,19 +87,27 @@ void cGrSky::build( double h_radius, double v_radius,
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pre_transform = new ssgTransform;
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post_transform = new ssgTransform;
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bodies_transform = new ssgTransform;
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sun_transform = new ssgTransform;
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moon_transform = new ssgTransform;
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stars_transform = new ssgTransform;
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dome = new cGrSkyDome;
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pre_transform -> addKid( dome->build( h_radius, v_radius ) );
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sun = new cGrSun;
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sun_transform -> addKid( sun->build( sun_path, ihalo_path, ohalo_path, sun_size, humidity, visibility));
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moon = new cGrMoon;
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moon_transform -> addKid( moon->build( moon_path, moon_size ));
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planets = new cGrStars;
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stars_transform -> addKid( planets->build( nplanets, planet_data, h_radius ) );
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stars = new cGrStars;
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stars_transform -> addKid( stars->build( nstars, star_data, h_radius ) );
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pre_transform -> addKid( bodies_transform );
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pre_transform -> addKid( sun_transform );
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pre_transform -> addKid( moon_transform );
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pre_transform -> addKid( stars_transform );
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pre_selector->addKid( pre_transform );
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@ -107,7 +121,7 @@ void cGrSky::build( double h_radius, double v_radius,
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}
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cGrCelestialBody*
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/*cGrCelestialBody*
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cGrSky::addBody( const char *body_tex_path, const char *ihalo_tex_path, const char *ohalo_tex_path, double size, double dist, bool sol )
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{
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cGrCelestialBody* body = new cGrCelestialBody;
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@ -136,7 +150,7 @@ cGrSky::addBody( ssgSimpleState *orb_state, ssgSimpleState *ihalo_state, ssgSimp
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sol_ref = body;
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return body;
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}
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}*/
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cGrCloudLayer*
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@ -161,41 +175,39 @@ cGrSky::addCloud( ssgSimpleState *cloud_state, float span, float elevation, floa
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bool cGrSky::repositionFlat( sgVec3 view_pos, double spin, double dt )
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{
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int i;
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double angle;
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double rotation;
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sgCoord pos;
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int i;
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double angle;
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double rotation;
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sgCoord pos;
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for ( i = 0; i < bodies.getNum (); i++ )
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{
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cGrCelestialBody *body = bodies.get(i);
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body->reposition( view_pos, 0 );
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sun->reposition( view_pos, 0 );
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moon->reposition( view_pos, 0 );
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// Calc angles for rise/set effects
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body->getPosition ( & pos );
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sun->getPosition ( & pos );
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calc_celestial_angles( pos.xyz, view_pos, angle, rotation );
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body->setAngle( angle );
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body->setRotation( rotation );
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}
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sun->setAngle( angle );
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sun->setRotation( rotation );
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for ( i = 0; i < clouds.getNum (); i++ )
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{
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clouds.get(i)->repositionFlat( view_pos, dt );
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}
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planets->reposition( view_pos, 0 );
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stars->reposition( view_pos, 0 );
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for ( i = 0; i < clouds.getNum (); i++ )
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{
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clouds.get(i)->repositionFlat( view_pos, dt );
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}
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if ( sol_ref )
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{
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dome->repositionFlat( view_pos, sol_ref->getRotation() );
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}
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else
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{
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dome->repositionFlat( view_pos, spin );
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}
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planets->reposition( view_pos, 0 );
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stars->reposition( view_pos, 0 );
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return true;
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/*if ( sol_ref )
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{
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dome->repositionFlat( view_pos, sol_ref->getRotation() );
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}
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else
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{*/
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dome->repositionFlat( view_pos, spin );
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//}
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return true;
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}
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@ -207,12 +219,11 @@ bool cGrSky::reposition( sgVec3 view_pos, sgVec3 zero_elev, sgVec3 view_up, doub
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dome->reposition( zero_elev, lon, lat, spin );
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for ( i = 0; i < bodies.getNum (); i++ )
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bodies.get(i)->reposition( view_pos, angle );
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for ( i = 0; i < clouds.getNum (); i++ )
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clouds.get(i)->reposition( zero_elev, view_up, lon, lat, alt, dt );
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sun->reposition( view_pos, angle);
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moon->reposition(view_pos, angle);
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planets->reposition( view_pos, angle );
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stars->reposition( view_pos, angle );
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@ -233,12 +244,11 @@ bool cGrSky::repaint( sgVec4 sky_color, sgVec4 fog_color, sgVec4 cloud_color, do
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dome->repaint( sky_color, fog_color, sol_angle, effective_visibility );
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for ( i = 0; i < bodies.getNum (); i++ )
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bodies.get(i)->repaint();
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for ( i = 0; i < clouds.getNum (); i++ )
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clouds.get(i)->repaint( cloud_color );
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sun->repaint( sol_angle, effective_visibility );
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moon->repaint( sol_angle );
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planets->repaint( sol_angle, nplanets, planet_data );
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stars->repaint( sol_angle, nstars, star_data );
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}
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@ -22,15 +22,199 @@
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#include "plib/ssg.h"
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class cGrCelestialBody;
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class cGrCelestialBodyList;
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//class cGrCelestialBody;
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//class cGrCelestialBodyList;
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class cGrSun;
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class cGrMoon;
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class cGrCloudLayer;
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class cGrCloudLayerList;
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class cGrStars;
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class cGrSkyDome;
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class cGrSky;
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class cGrCelestialBody
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class cGrMoon
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{
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ssgTransform *moon_transform;
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ssgSimpleState *orb_state;
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ssgSimpleState *halo_state;
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ssgColourArray *cl;
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ssgVertexArray *halo_vl;
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ssgTexCoordArray *halo_tl;
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double prev_moon_angle;
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double moon_angle;
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double moon_size;
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double moon_dist;
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double moonAscension;
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double moondeclination;
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public:
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// Constructor
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cGrMoon( void );
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// Destructor
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~cGrMoon( void );
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// build the moon object
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ssgBranch *build( const char* moon_path, double moon_size );
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// repaint the moon colors based on current value of moon_anglein
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// degrees relative to verticle
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// 0 degrees = high noon
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// 90 degrees = moon rise/set
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// 180 degrees = darkest midnight
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//bool repaint(double moon_angle);
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/*bool reposition( sgVec3 p, double angle,
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double rightAscension, double declination,
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double moon_dist );*/
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bool reposition(sgVec3 p, double moon_angle)
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{
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return reposition (p, moon_angle, moonAscension, moondeclination, moon_dist);
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}
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bool reposition(sgVec3 p, double moon_angle, double moonAscension, double moondeclination, double moon_dist);
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bool repaint(double moon_angle);
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void setmoonRightAscension ( double ra ) { moonAscension = ra; }
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double getRightAscension () { return moonAscension; }
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void setmoonDeclination ( double decl ) { moondeclination = decl; }
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double getmoonDeclination () { return moondeclination; }
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};
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class cGrSun
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{
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ssgTransform *sun_transform;
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ssgSimpleState *sun_state;
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ssgSimpleState *ihalo_state;
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ssgSimpleState *ohalo_state;
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ssgColourArray *sun_cl;
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||||
ssgColourArray *ihalo_cl;
|
||||
ssgColourArray *ohalo_cl;
|
||||
|
||||
ssgVertexArray *sun_vl;
|
||||
ssgVertexArray *ihalo_vl;
|
||||
ssgVertexArray *ohalo_vl;
|
||||
|
||||
ssgTexCoordArray *sun_tl;
|
||||
ssgTexCoordArray *ihalo_tl;
|
||||
ssgTexCoordArray *ohalo_tl;
|
||||
|
||||
GLuint sun_texid;
|
||||
GLubyte *sun_texbuf;
|
||||
|
||||
double visibility;
|
||||
double prev_sun_angle;
|
||||
double sun_angle;
|
||||
double sun_rotation;
|
||||
|
||||
// used by reposition
|
||||
double sun_right_ascension;
|
||||
double sun_declination;
|
||||
double sun_dist;
|
||||
double path_distance;
|
||||
|
||||
public:
|
||||
|
||||
// Constructor
|
||||
cGrSun( void );
|
||||
|
||||
// Destructor
|
||||
~cGrSun( void );
|
||||
|
||||
// return the sun object
|
||||
ssgBranch *build( const char* sun_path, const char *ihalo_path, const char* ohalo_path, float sun_size, float humidity, float visibility );
|
||||
|
||||
// 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, 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, double lat, double alt_asl, double sun_angle );*/
|
||||
|
||||
bool reposition( sgVec3 p, double sun_angle )
|
||||
{
|
||||
return reposition ( p, sun_angle, sun_right_ascension, sun_declination, sun_dist );
|
||||
}
|
||||
|
||||
bool reposition( sgVec3 p, double sun_angle, double rightAscension, double declination, double dist );
|
||||
|
||||
void getPosition (sgCoord* p)
|
||||
{
|
||||
sgMat4 Xform;
|
||||
sun_transform->getTransform(Xform);
|
||||
sgSetCoord(p, Xform);
|
||||
}
|
||||
|
||||
void setAngle (double angle)
|
||||
{
|
||||
sun_angle = angle;
|
||||
}
|
||||
|
||||
double getAngle ()
|
||||
{
|
||||
return sun_angle;
|
||||
}
|
||||
|
||||
void setRotation (double rotation)
|
||||
{
|
||||
sun_rotation = rotation;
|
||||
}
|
||||
double getRotation ()
|
||||
{
|
||||
return sun_rotation;
|
||||
}
|
||||
|
||||
void setRightAscension (double ra)
|
||||
{
|
||||
sun_right_ascension = ra;
|
||||
}
|
||||
double getRightAscension ()
|
||||
{
|
||||
return sun_right_ascension;
|
||||
}
|
||||
|
||||
void setDeclination ( double decl )
|
||||
{
|
||||
sun_declination = decl;
|
||||
}
|
||||
double getDeclination ()
|
||||
{
|
||||
return sun_declination;
|
||||
}
|
||||
|
||||
void setDist ( double dist )
|
||||
{
|
||||
sun_dist = dist;
|
||||
}
|
||||
double getDist ()
|
||||
{
|
||||
return sun_dist;
|
||||
}
|
||||
|
||||
// retrun the current color of the sun
|
||||
inline float *get_color() { return ohalo_cl->get( 0 ); }
|
||||
double effective_visibility;
|
||||
};
|
||||
|
||||
/*class cGrCelestialBody
|
||||
{
|
||||
private:
|
||||
|
||||
|
|
@ -117,7 +301,7 @@ public:
|
|||
delete get (i) ;
|
||||
ssgSimpleList::removeAll () ;
|
||||
}
|
||||
} ;
|
||||
} ;*/
|
||||
|
||||
|
||||
class cGrCloudLayer
|
||||
|
|
@ -273,8 +457,8 @@ private:
|
|||
|
||||
// components of the sky
|
||||
cGrSkyDome *dome;
|
||||
cGrCelestialBody* sol_ref;
|
||||
cGrCelestialBodyList bodies;
|
||||
cGrSun *sun;
|
||||
cGrMoon *moon;
|
||||
cGrCloudLayerList clouds;
|
||||
cGrStars *planets;
|
||||
cGrStars *stars;
|
||||
|
|
@ -283,7 +467,7 @@ private:
|
|||
|
||||
ssgSelector *pre_selector, *post_selector;
|
||||
ssgTransform *pre_transform, *post_transform;
|
||||
ssgTransform *bodies_transform, *stars_transform;
|
||||
ssgTransform *sun_transform, *moon_transform, *stars_transform;
|
||||
|
||||
// visibility
|
||||
float visibility;
|
||||
|
|
@ -302,13 +486,11 @@ public:
|
|||
~cGrSky( void );
|
||||
|
||||
void build( double h_radius, double v_radius,
|
||||
const char *sun_path, const char *ihalo_path,
|
||||
const char *ohalo_path, float sun_size,
|
||||
const char *moon_path, float moon_size,
|
||||
int nplanets, sgdVec3 *planet_data,
|
||||
int nstars, sgdVec3 *star_data);
|
||||
|
||||
cGrCelestialBody* addBody( const char *body_tex_path, const char *ihalo_path, const char* ohalo_path, double size, double dist, bool sol = false );
|
||||
cGrCelestialBody* addBody( ssgSimpleState *orb_state, ssgSimpleState *ihalo_state, ssgSimpleState *ohalo_state, double size, double dist, bool sol = false );
|
||||
cGrCelestialBody* getBody(int i) { return bodies.get(i); }
|
||||
int getBodyCount() { return bodies.getNum(); }
|
||||
int nstars, sgdVec3 *star_data, float humidity, float visibility);
|
||||
|
||||
cGrCloudLayer* addCloud( const char *cloud_tex_path, float span, float elevation, float thickness, float transition );
|
||||
cGrCloudLayer* addCloud( ssgSimpleState *cloud_state, float span, float elevation, float thickness, float transition );
|
||||
|
|
@ -391,190 +573,4 @@ inline void grGammaRestoreC(float *color, float reff = 2.5, float system = syste
|
|||
*color = (float)pow(*color, system/reff);
|
||||
};
|
||||
|
||||
#if O
|
||||
class cGrMoon
|
||||
{
|
||||
ssgTransform *moon_transform;
|
||||
ssgSimpleState *orb_state;
|
||||
ssgSimpleState *halo_state;
|
||||
|
||||
ssgColourArray *cl;
|
||||
|
||||
ssgVertexArray *halo_vl;
|
||||
ssgTexCoordArray *halo_tl;
|
||||
|
||||
double prev_moon_angle;
|
||||
double moon_angle;
|
||||
double moon_rotation;
|
||||
|
||||
// used by reposition
|
||||
double moon_right_ascension;
|
||||
double moon_declination;
|
||||
double moon_dist;
|
||||
|
||||
public:
|
||||
|
||||
// Constructor
|
||||
cGrMoon( void );
|
||||
|
||||
// Destructor
|
||||
~cGrMoon( void );
|
||||
|
||||
// build the moon object
|
||||
ssgBranch *build( const char* body_tex_path, double moon_size );
|
||||
|
||||
// repaint the moon colors based on current value of moon_anglein
|
||||
// degrees relative to verticle
|
||||
// 0 degrees = high noon
|
||||
// 90 degrees = moon rise/set
|
||||
// 180 degrees = darkest midnight
|
||||
|
||||
//bool repaint(double moon_angle);
|
||||
|
||||
/*bool reposition( sgVec3 p, double angle,
|
||||
double rightAscension, double declination,
|
||||
double moon_dist );*/
|
||||
|
||||
/*bool reposition(sgVec3 p, double moon_angle)
|
||||
{
|
||||
return reposition (p, moon_angle, rightAscension, declination, moon_dist);
|
||||
}*/
|
||||
|
||||
bool reposition(sgVec3 p, double moon_angle, double rightAscension, double declination, double moon_dist);
|
||||
|
||||
/*bool repaint()
|
||||
{
|
||||
return repaint (moon_angle);
|
||||
}*/
|
||||
bool repaint(double moon_angle);
|
||||
|
||||
void getPosition (sgCoord* p)
|
||||
{
|
||||
sgMat4 Xform;
|
||||
moon_transform->getTransform(Xform);
|
||||
sgSetCoord(p, Xform);
|
||||
}
|
||||
|
||||
void setAngle (double angle)
|
||||
{
|
||||
moon_angle = angle;
|
||||
}
|
||||
double getAngle ()
|
||||
{
|
||||
return moon_angle;
|
||||
}
|
||||
|
||||
void setRotation (double rotation)
|
||||
{
|
||||
moon_rotation = rotation;
|
||||
}
|
||||
double getRotation ()
|
||||
{
|
||||
return moon_rotation;
|
||||
}
|
||||
|
||||
void setRightAscension (double ra)
|
||||
{
|
||||
moon_right_ascension = ra;
|
||||
}
|
||||
double getRightAscension ()
|
||||
{
|
||||
return moon_right_ascension;
|
||||
}
|
||||
|
||||
void setDeclination ( double decl )
|
||||
{
|
||||
moon_declination = decl;
|
||||
}
|
||||
double getDeclination ()
|
||||
{
|
||||
return moon_declination;
|
||||
}
|
||||
|
||||
void setDist ( double dist )
|
||||
{
|
||||
moon_dist = dist;
|
||||
}
|
||||
double getDist ()
|
||||
{
|
||||
return moon_dist;
|
||||
}
|
||||
|
||||
inline float *getColor()
|
||||
{
|
||||
return cl->get( 0 );
|
||||
}
|
||||
};
|
||||
|
||||
// Not used.
|
||||
|
||||
class cGrSun
|
||||
{
|
||||
ssgTransform *sun_transform;
|
||||
ssgSimpleState *sun_state;
|
||||
ssgSimpleState *ihalo_state;
|
||||
ssgSimpleState *ohalo_state;
|
||||
|
||||
ssgColourArray *sun_cl;
|
||||
ssgColourArray *ihalo_cl;
|
||||
ssgColourArray *ohalo_cl;
|
||||
|
||||
ssgVertexArray *sun_vl;
|
||||
ssgVertexArray *ihalo_vl;
|
||||
ssgVertexArray *ohalo_vl;
|
||||
|
||||
ssgTexCoordArray *sun_tl;
|
||||
ssgTexCoordArray *ihalo_tl;
|
||||
ssgTexCoordArray *ohalo_tl;
|
||||
|
||||
GLuint sun_texid;
|
||||
GLubyte *sun_texbuf;
|
||||
|
||||
double visibility;
|
||||
double prev_sun_angle;
|
||||
// distance of light traveling through the atmosphere
|
||||
double path_distance;
|
||||
|
||||
public:
|
||||
|
||||
// Constructor
|
||||
cGrSun( void );
|
||||
|
||||
// Destructor
|
||||
~cGrSun( void );
|
||||
|
||||
// return the sun object
|
||||
ssgBranch *build( const char* body_tex_path, const char* halo_tex_path, double sun_size);
|
||||
|
||||
// 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, 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, double lat, double alt_asl, double sun_angle );*/
|
||||
|
||||
bool reposition( sgVec3 p, double sun_angle )
|
||||
{
|
||||
return reposition ( p, angle, sun_right_ascension, sun_declination, sun_body_dist );
|
||||
}
|
||||
|
||||
bool reposition( sgVec3 p, double sun_angle, double rightAscension, double declination, double dist );
|
||||
|
||||
// retrun the current color of the sun
|
||||
inline float *get_color() { return ohalo_cl->get( 0 ); }
|
||||
|
||||
// return the texture id of the sun halo texture
|
||||
inline GLuint get_texture_id() { return ohalo_state->getTextureHandle(); }
|
||||
};
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
|
|
|||
409
src/modules/graphic/ssggraph/grSun.cpp
Normal file
409
src/modules/graphic/ssggraph/grSun.cpp
Normal file
|
|
@ -0,0 +1,409 @@
|
|||
/***************************************************************************
|
||||
|
||||
file : grSun.cpp
|
||||
copyright : (C) 2009 by Xavier Bertaux (based on ssgasky plib code)
|
||||
web : http://www.speed-dreams.org
|
||||
version : $Id: grSky.cpp 3162 2010-12-05 13:11:22Z pouillot $
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
/***************************************************************************
|
||||
* *
|
||||
* 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. *
|
||||
* *
|
||||
***************************************************************************/
|
||||
|
||||
#include <plib/sg.h>
|
||||
#include <plib/ssg.h>
|
||||
#include "grSky.h"
|
||||
#include "grSphere.h"
|
||||
|
||||
static float sun_exp2_punch_through;
|
||||
|
||||
// Set up sun rendering call backs
|
||||
static int grSunPreDraw( ssgEntity *e )
|
||||
{
|
||||
ssgLeaf *f = (ssgLeaf *)e;
|
||||
if ( f -> hasState () ) f->getState()->apply() ;
|
||||
|
||||
glPushAttrib( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_FOG_BIT );
|
||||
glDisable( GL_DEPTH_TEST );
|
||||
glDisable( GL_FOG );
|
||||
glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
|
||||
return true;
|
||||
}
|
||||
|
||||
static int grSunPostDraw( ssgEntity *e )
|
||||
{
|
||||
glPopAttrib();
|
||||
return true;
|
||||
}
|
||||
|
||||
static int grSunHaloPreDraw( ssgEntity *e )
|
||||
{
|
||||
ssgLeaf *f = (ssgLeaf *)e;
|
||||
if ( f -> hasState () ) f->getState()->apply();
|
||||
|
||||
glPushAttrib( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_FOG_BIT );
|
||||
glDisable( GL_DEPTH_TEST );
|
||||
glFogf (GL_FOG_DENSITY, sun_exp2_punch_through);
|
||||
glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static int grSunHaloPostDraw( ssgEntity *e )
|
||||
{
|
||||
glPopAttrib();
|
||||
return true;
|
||||
}
|
||||
|
||||
// Constructor
|
||||
cGrSun::cGrSun( void )
|
||||
{
|
||||
prev_sun_angle = -9999.0;
|
||||
visibility = -9999.0;
|
||||
}
|
||||
|
||||
// Destructor
|
||||
cGrSun::~cGrSun( void )
|
||||
{
|
||||
}
|
||||
|
||||
ssgBranch * cGrSun::build( const char *sun_path, const char *ihalo_path, const char *ohalo_path, float sun_size, float humidity, float visibility )
|
||||
{
|
||||
sgVec4 color;
|
||||
sgSetVec4( color, 1.0, 1.0, 1.0, 1.0 );
|
||||
|
||||
sun_cl = new ssgColourArray( 1 );
|
||||
sun_cl->add( color );
|
||||
|
||||
ihalo_cl = new ssgColourArray( 1 );
|
||||
ihalo_cl->add( color );
|
||||
|
||||
ohalo_cl = new ssgColourArray( 1 );
|
||||
ohalo_cl->add( color );
|
||||
|
||||
//repaint( 0.0, 1.0 );
|
||||
|
||||
// set up the sun-state
|
||||
sun_state = new ssgSimpleState();
|
||||
sun_state->setShadeModel( GL_SMOOTH );
|
||||
sun_state->disable( GL_LIGHTING );
|
||||
sun_state->disable( GL_CULL_FACE );
|
||||
sun_state->setTexture( sun_path);
|
||||
sun_state->enable( GL_TEXTURE_2D );
|
||||
sun_state->enable( GL_COLOR_MATERIAL );
|
||||
sun_state->setColourMaterial( GL_AMBIENT_AND_DIFFUSE );
|
||||
sun_state->setMaterial( GL_EMISSION, 0, 0, 0, 1 );
|
||||
sun_state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
|
||||
sun_state->enable( GL_BLEND );
|
||||
sun_state->setAlphaClamp( 0.01 );
|
||||
sun_state->enable( GL_ALPHA_TEST );
|
||||
|
||||
// Build ssg structure
|
||||
|
||||
sgVec3 va;
|
||||
sun_vl = new ssgVertexArray;
|
||||
sgSetVec3( va, -sun_size, 0.0, -sun_size );
|
||||
sun_vl->add( va );
|
||||
sgSetVec3( va, sun_size, 0.0, -sun_size );
|
||||
sun_vl->add( va );
|
||||
sgSetVec3( va, -sun_size, 0.0, sun_size );
|
||||
sun_vl->add( va );
|
||||
sgSetVec3( va, sun_size, 0.0, sun_size );
|
||||
sun_vl->add( va );
|
||||
|
||||
sgVec2 vb;
|
||||
sun_tl = new ssgTexCoordArray;
|
||||
sgSetVec2( vb, 0.0f, 0.0f );
|
||||
sun_tl->add( vb );
|
||||
sgSetVec2( vb, 1.0, 0.0 );
|
||||
sun_tl->add( vb );
|
||||
sgSetVec2( vb, 0.0, 1.0 );
|
||||
sun_tl->add( vb );
|
||||
sgSetVec2( vb, 1.0, 1.0 );
|
||||
sun_tl->add( vb );
|
||||
|
||||
ssgBranch *sun = grMakeSphere( sun_state, sun_cl, sun_size, 15, 15,
|
||||
grSunPreDraw, grSunPostDraw );
|
||||
|
||||
repaint( 0.0, 1.0 );
|
||||
|
||||
ihalo_state = new ssgSimpleState();
|
||||
ihalo_state->setTexture( ihalo_path );
|
||||
ihalo_state->enable( GL_TEXTURE_2D );
|
||||
ihalo_state->disable( GL_LIGHTING );
|
||||
ihalo_state->setShadeModel( GL_SMOOTH );
|
||||
ihalo_state->disable( GL_CULL_FACE );
|
||||
ihalo_state->enable( GL_COLOR_MATERIAL );
|
||||
ihalo_state->setColourMaterial( GL_AMBIENT_AND_DIFFUSE );
|
||||
ihalo_state->setMaterial( GL_EMISSION, 0, 0, 0, 1 );
|
||||
ihalo_state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
|
||||
ihalo_state->enable( GL_ALPHA_TEST );
|
||||
ihalo_state->setAlphaClamp(0.01);
|
||||
ihalo_state->enable ( GL_BLEND ) ;
|
||||
|
||||
float ihalo_size = sun_size * 2.0;
|
||||
sgVec3 vc;
|
||||
ihalo_vl = new ssgVertexArray;
|
||||
sgSetVec3( vc, -ihalo_size, 0.0, -ihalo_size );
|
||||
ihalo_vl->add( vc );
|
||||
sgSetVec3( vc, ihalo_size, 0.0, -ihalo_size );
|
||||
ihalo_vl->add( vc );
|
||||
sgSetVec3( vc, -ihalo_size, 0.0, ihalo_size );
|
||||
ihalo_vl->add( vc );
|
||||
sgSetVec3( vc, ihalo_size, 0.0, ihalo_size );
|
||||
ihalo_vl->add( vc );
|
||||
|
||||
sgVec2 vd;
|
||||
ihalo_tl = new ssgTexCoordArray;
|
||||
sgSetVec2( vd, 0.0f, 0.0f );
|
||||
ihalo_tl->add( vd );
|
||||
sgSetVec2( vd, 1.0, 0.0 );
|
||||
ihalo_tl->add( vd );
|
||||
sgSetVec2( vd, 0.0, 1.0 );
|
||||
ihalo_tl->add( vd );
|
||||
sgSetVec2( vd, 1.0, 1.0 );
|
||||
ihalo_tl->add( vd );
|
||||
|
||||
ssgLeaf *ihalo = new ssgVtxTable ( GL_TRIANGLE_STRIP, ihalo_vl, NULL, ihalo_tl, ihalo_cl );
|
||||
ihalo->setState( ihalo_state );
|
||||
|
||||
ohalo_state = new ssgSimpleState();
|
||||
ohalo_state->setTexture( ohalo_path );
|
||||
ohalo_state->enable( GL_TEXTURE_2D );
|
||||
ohalo_state->disable( GL_LIGHTING );
|
||||
ohalo_state->setShadeModel( GL_SMOOTH );
|
||||
ohalo_state->disable( GL_CULL_FACE );
|
||||
ohalo_state->enable( GL_COLOR_MATERIAL );
|
||||
ohalo_state->setColourMaterial( GL_AMBIENT_AND_DIFFUSE );
|
||||
ohalo_state->setMaterial( GL_EMISSION, 0, 0, 0, 1 );
|
||||
ohalo_state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
|
||||
ohalo_state->enable( GL_ALPHA_TEST );
|
||||
ohalo_state->setAlphaClamp(0.01);
|
||||
ohalo_state->enable ( GL_BLEND ) ;
|
||||
|
||||
float ohalo_size = (float)sun_size * 7.0;
|
||||
sgVec3 ve;
|
||||
ohalo_vl = new ssgVertexArray;
|
||||
sgSetVec3( ve, -ohalo_size, 0.0, -ohalo_size );
|
||||
ohalo_vl->add( ve );
|
||||
sgSetVec3( ve, ohalo_size, 0.0, -ohalo_size );
|
||||
ohalo_vl->add( ve );
|
||||
sgSetVec3( ve, -ohalo_size, 0.0, ohalo_size );
|
||||
ohalo_vl->add( ve );
|
||||
sgSetVec3( ve, ohalo_size, 0.0, ohalo_size );
|
||||
ohalo_vl->add( ve );
|
||||
|
||||
sgVec2 vf;
|
||||
ohalo_tl = new ssgTexCoordArray;
|
||||
sgSetVec2( vf, 0.0f, 0.0f );
|
||||
ohalo_tl->add( vf );
|
||||
sgSetVec2( vf, 1.0, 0.0 );
|
||||
ohalo_tl->add( vf );
|
||||
sgSetVec2( vf, 0.0, 1.0 );
|
||||
ohalo_tl->add( vf );
|
||||
sgSetVec2( vf, 1.0, 1.0 );
|
||||
ohalo_tl->add( vf );
|
||||
|
||||
ssgLeaf *ohalo = new ssgVtxTable ( GL_TRIANGLE_STRIP, ohalo_vl, NULL, ohalo_tl, ohalo_cl );
|
||||
ohalo->setState( ohalo_state );
|
||||
|
||||
sun_transform = new ssgTransform;
|
||||
|
||||
ihalo->setCallback( SSG_CALLBACK_PREDRAW, grSunHaloPreDraw );
|
||||
ihalo->setCallback( SSG_CALLBACK_POSTDRAW, grSunHaloPostDraw );
|
||||
ohalo->setCallback( SSG_CALLBACK_PREDRAW, grSunHaloPreDraw );
|
||||
ohalo->setCallback( SSG_CALLBACK_POSTDRAW, grSunHaloPostDraw );
|
||||
|
||||
sun_transform->addKid( ohalo );
|
||||
sun_transform->addKid( ihalo );
|
||||
sun_transform->addKid( sun );
|
||||
|
||||
return sun_transform;
|
||||
}
|
||||
|
||||
bool cGrSun::repaint( double sun_angle, double new_visibility )
|
||||
{
|
||||
if ( visibility != new_visibility )
|
||||
{
|
||||
visibility = new_visibility;
|
||||
|
||||
static const float sqrt_m_log01 = sqrt( -log( 0.01 ) );
|
||||
sun_exp2_punch_through = sqrt_m_log01 / ( visibility * 15 );
|
||||
}
|
||||
|
||||
if ( prev_sun_angle != sun_angle )
|
||||
{
|
||||
prev_sun_angle = sun_angle;
|
||||
|
||||
float aerosol_factor;
|
||||
if ( visibility < 100 )
|
||||
{
|
||||
aerosol_factor = 8000;
|
||||
}
|
||||
else
|
||||
{
|
||||
aerosol_factor = 80.5 / log( visibility / 100 );
|
||||
}
|
||||
|
||||
float rel_humidity, density_avg;
|
||||
|
||||
/*if ( !env_node )
|
||||
{*/
|
||||
rel_humidity = 0.5;
|
||||
density_avg = 0.7;
|
||||
/*}
|
||||
else
|
||||
{
|
||||
//rel_humidity = env_node->getFloatValue( "relative-humidity" );
|
||||
//density_avg = env_node->getFloatValue( "atmosphere/density-tropo-avg" );
|
||||
}*/
|
||||
|
||||
sgVec4 i_halo_color, o_halo_color, sun_color;
|
||||
|
||||
float red_scat_f = ( aerosol_factor * path_distance * density_avg ) / 5E+07;
|
||||
sun_color[0] = 1 - red_scat_f;
|
||||
i_halo_color[0] = 1 - ( 1.1 * red_scat_f );
|
||||
o_halo_color[0] = 1 - ( 1.4 * red_scat_f );
|
||||
|
||||
// Green - 546.1 nm
|
||||
float green_scat_f = ( aerosol_factor * path_distance * density_avg ) / 8.8938E+06;
|
||||
sun_color[1] = 1 - green_scat_f;
|
||||
i_halo_color[1] = 1 - ( 1.1 * green_scat_f );
|
||||
o_halo_color[1] = 1 - ( 1.4 * green_scat_f );
|
||||
|
||||
// Blue - 435.8 nm
|
||||
float blue_scat_f = ( aerosol_factor * path_distance * density_avg ) / 3.607E+06;
|
||||
sun_color[2] = 1 - blue_scat_f;
|
||||
i_halo_color[2] = 1 - ( 1.1 * blue_scat_f );
|
||||
o_halo_color[2] = 1 - ( 1.4 * blue_scat_f );
|
||||
|
||||
// Alpha
|
||||
sun_color[3] = 1;
|
||||
i_halo_color[3] = 1;
|
||||
|
||||
o_halo_color[3] = blue_scat_f;
|
||||
if ( ( new_visibility < 10000 ) && ( blue_scat_f > 1 ))
|
||||
{
|
||||
o_halo_color[3] = 2 - blue_scat_f;
|
||||
}
|
||||
|
||||
float saturation = 1 - ( rel_humidity / 200 );
|
||||
sun_color[1] += (( 1 - saturation ) * ( 1 - sun_color[1] ));
|
||||
sun_color[2] += (( 1 - saturation ) * ( 1 - sun_color[2] ));
|
||||
|
||||
i_halo_color[1] += (( 1 - saturation ) * ( 1 - i_halo_color[1] ));
|
||||
i_halo_color[2] += (( 1 - saturation ) * ( 1 - i_halo_color[2] ));
|
||||
|
||||
o_halo_color[1] += (( 1 - saturation ) * ( 1 - o_halo_color[1] ));
|
||||
o_halo_color[2] += (( 1 - saturation ) * ( 1 - o_halo_color[2] ));
|
||||
|
||||
// just to make sure we're in the limits
|
||||
if ( sun_color[0] < 0 ) sun_color[0] = 0;
|
||||
else if ( sun_color[0] > 1) sun_color[0] = 1;
|
||||
if ( i_halo_color[0] < 0 ) i_halo_color[0] = 0;
|
||||
else if ( i_halo_color[0] > 1) i_halo_color[0] = 1;
|
||||
if ( o_halo_color[0] < 0 ) o_halo_color[0] = 0;
|
||||
else if ( o_halo_color[0] > 1) o_halo_color[0] = 1;
|
||||
|
||||
if ( sun_color[1] < 0 ) sun_color[1] = 0;
|
||||
else if ( sun_color[1] > 1) sun_color[1] = 1;
|
||||
if ( i_halo_color[1] < 0 ) i_halo_color[1] = 0;
|
||||
else if ( i_halo_color[1] > 1) i_halo_color[1] = 1;
|
||||
if ( o_halo_color[1] < 0 ) o_halo_color[1] = 0;
|
||||
else if ( o_halo_color[1] > 1) o_halo_color[1] = 1;
|
||||
|
||||
if ( sun_color[2] < 0 ) sun_color[2] = 0;
|
||||
else if ( sun_color[2] > 1) sun_color[2] = 1;
|
||||
if ( i_halo_color[2] < 0 ) i_halo_color[2] = 0;
|
||||
else if ( i_halo_color[2] > 1) i_halo_color[2] = 1;
|
||||
if ( o_halo_color[2] < 0 ) o_halo_color[2] = 0;
|
||||
else if ( o_halo_color[2] > 1) o_halo_color[2] = 1;
|
||||
if ( o_halo_color[3] < 0 ) o_halo_color[2] = 0;
|
||||
else if ( o_halo_color[3] > 1) o_halo_color[3] = 1;
|
||||
|
||||
|
||||
grGammaCorrectRGB( i_halo_color );
|
||||
grGammaCorrectRGB( o_halo_color );
|
||||
grGammaCorrectRGB( sun_color );
|
||||
|
||||
|
||||
float *ptr;
|
||||
ptr = sun_cl->get( 0 );
|
||||
sgCopyVec4( ptr, sun_color );
|
||||
ptr = ihalo_cl->get( 0 );
|
||||
sgCopyVec4( ptr, i_halo_color );
|
||||
ptr = ohalo_cl->get( 0 );
|
||||
sgCopyVec4( ptr, o_halo_color );
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool cGrSun::reposition( sgVec3 p, double angle, double rightAscension, double declination, double sun_dist )
|
||||
{
|
||||
sgMat4 T1, T2, GST, RA, DEC;
|
||||
sgVec3 axis;
|
||||
sgVec3 v;
|
||||
|
||||
sgMakeTransMat4( T1, p );
|
||||
sgSetVec3( axis, 0.0, 0.0, -1.0 );
|
||||
sgMakeRotMat4( GST, (float)angle, axis );
|
||||
sgSetVec3( axis, 0.0, 0.0, 1.0 );
|
||||
sgMakeRotMat4( RA, ((float)rightAscension * SGD_RADIANS_TO_DEGREES) - 90.0, axis );
|
||||
sgSetVec3( axis, 1.0, 0.0, 0.0 );
|
||||
sgMakeRotMat4( DEC, (float)declination * SGD_RADIANS_TO_DEGREES, axis );
|
||||
|
||||
sgSetVec3( v, 0.0, sun_dist, 0.0 );
|
||||
sgMakeTransMat4( T2, v );
|
||||
|
||||
sgMat4 TRANSFORM;
|
||||
sgCopyMat4( TRANSFORM, T1 );
|
||||
sgPreMultMat4( TRANSFORM, GST );
|
||||
sgPreMultMat4( TRANSFORM, RA );
|
||||
sgPreMultMat4( TRANSFORM, DEC );
|
||||
sgPreMultMat4( TRANSFORM, T2 );
|
||||
|
||||
sgCoord skypos;
|
||||
sgSetCoord( &skypos, TRANSFORM );
|
||||
|
||||
sun_transform->setTransform( &skypos );
|
||||
|
||||
if ( prev_sun_angle != sun_angle )
|
||||
{
|
||||
if ( sun_angle == 0 ) sun_angle = 0.1;
|
||||
const double r_earth_pole = 6356752.314;
|
||||
const double r_tropo_pole = 6356752.314 + 8000;
|
||||
const double epsilon_earth2 = 6.694380066E-3;
|
||||
const double epsilon_tropo2 = 9.170014946E-3;
|
||||
|
||||
double r_tropo = r_tropo_pole / sqrt ( 1 - ( epsilon_tropo2 * pow ( cos( 0.0 ), 2 )));
|
||||
double r_earth = r_earth_pole / sqrt ( 1 - ( epsilon_earth2 * pow ( cos( 0.0 ), 2 )));
|
||||
|
||||
double position_radius = r_earth;
|
||||
|
||||
double gamma = SG_PI - sun_angle;
|
||||
double sin_beta = ( position_radius * sin ( gamma ) ) / r_tropo;
|
||||
double alpha = SG_PI - gamma - asin( sin_beta );
|
||||
|
||||
path_distance = sqrt( pow( position_radius, 2 ) + pow( r_tropo, 2 )
|
||||
- ( 2 * position_radius * r_tropo * cos( alpha ) ));
|
||||
|
||||
double alt_half = sqrt( pow ( r_tropo, 2 ) + pow( path_distance / 2, 2 ) - r_tropo * path_distance * cos( asin( sin_beta )) ) - r_earth;
|
||||
|
||||
if ( alt_half < 0.0 ) alt_half = 0.0;
|
||||
|
||||
/*if ( env_node )
|
||||
{
|
||||
//env_node->setDoubleValue( "atmosphere/altitude-troposphere-top", r_tropo - r_earth );
|
||||
//env_node->setDoubleValue( "atmosphere/altitude-half-to-sun", alt_half );
|
||||
}*/
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
|
@ -50,8 +50,6 @@ static const int NMaxStars = 1000;
|
|||
static const int NMaxPlanets = 0; //No planets displayed for the moment
|
||||
static const int NMaxCloudLayers = 3;
|
||||
|
||||
enum {eCBSun = 0, eCBMoon, NMaxCelestianBodies}; // Celestial bodies in the sky.
|
||||
|
||||
static const sgVec4 Black = { 0.0f, 0.0f, 0.0f, 1.0f } ;
|
||||
static const sgVec4 White = { 1.0f, 1.0f, 1.0f, 1.0f } ;
|
||||
static const sgVec4 TranslucentWhite = { 1.0f, 1.0f, 1.0f, 0.8f } ;
|
||||
|
|
@ -96,8 +94,10 @@ static ssgBranch *SunAnchor = NULL;
|
|||
static ssgRoot *TheBackground = NULL;
|
||||
static ssgTransform *TheSun = NULL;
|
||||
|
||||
static cGrCelestialBody *TheCelestBodies[NMaxCelestianBodies] = { NULL, NULL };
|
||||
//static cGrCelestialBody *TheCelestBodies[NMaxCelestianBodies] = { NULL, NULL };
|
||||
static cGrSky *TheSky = NULL;
|
||||
static cGrSun *Sun = NULL;
|
||||
static cGrMoon *Moon = NULL;
|
||||
|
||||
static sgdVec3 *AStarsData = NULL;
|
||||
static sgdVec3 *APlanetsData = NULL;
|
||||
|
|
@ -218,17 +218,18 @@ grInitBackground()
|
|||
|
||||
//Build the sky
|
||||
TheSky = new cGrSky;
|
||||
TheSky->build(grSkyDomeDistance, grSkyDomeDistance, NPlanets, APlanetsData, NStars, AStarsData);
|
||||
|
||||
//Add the Sun itself
|
||||
|
||||
const double domeSizeRatio = grSkyDomeDistance / 80000.0;
|
||||
TheCelestBodies[eCBSun] = TheSky->addBody(NULL, "data/textures/halo.rgba", "data/textures/outer_halo.rgba",
|
||||
2500 * domeSizeRatio, grSkyDomeDistance, /*isSun=*/true);
|
||||
|
||||
TheSky->build(grSkyDomeDistance, grSkyDomeDistance, "data/textures/halo.rgba", "data/textures/halo.rgba", "data/textures/outer_halo.rgba",
|
||||
2500 * domeSizeRatio, "data/textures/moon.rgba", 2000 * domeSizeRatio, NPlanets, APlanetsData, NStars, AStarsData, 0.5f, visibility);
|
||||
|
||||
//Add the Sun itself
|
||||
GLfloat sunAscension = grTrack->local.sunascension;
|
||||
grSunDeclination = (float)(15 * (double)timeOfDay / 3600 - 90.0);
|
||||
|
||||
TheCelestBodies[eCBSun]->setDeclination ( DEG2RAD(grSunDeclination));
|
||||
TheCelestBodies[eCBSun]->setRightAscension ( sunAscension );
|
||||
Sun->setDeclination ( DEG2RAD(grSunDeclination));
|
||||
Sun->setRightAscension ( sunAscension );
|
||||
|
||||
GfLogInfo(" Sun : time of day = %02d:%02d:%02d (declination = %.1f deg), "
|
||||
"ascension = %.1f deg\n",
|
||||
|
|
@ -236,8 +237,6 @@ grInitBackground()
|
|||
grSunDeclination, RAD2DEG(sunAscension));
|
||||
|
||||
// Add the Moon (TODO: Find a better solution than this random positioning !)
|
||||
TheCelestBodies[eCBMoon] = TheSky->addBody ( "data/textures/moon.rgba",NULL, NULL,
|
||||
2000 * domeSizeRatio, grSkyDomeDistance);
|
||||
if ( grSunDeclination > 180 )
|
||||
grMoonDeclination = 3.0 + (rand() % 40);
|
||||
else
|
||||
|
|
@ -245,8 +244,8 @@ grInitBackground()
|
|||
|
||||
const float moonAscension = (float)(rand() % 360);
|
||||
|
||||
TheCelestBodies[eCBMoon]->setDeclination ( DEG2RAD(grMoonDeclination) );
|
||||
TheCelestBodies[eCBMoon]->setRightAscension ( DEG2RAD(moonAscension) );
|
||||
Moon->setmoonDeclination ( DEG2RAD(grMoonDeclination) );
|
||||
Moon->setmoonRightAscension ( DEG2RAD(moonAscension) );
|
||||
|
||||
GfLogInfo(" Moon : declination = %.1f deg, ascension = %.1f deg\n",
|
||||
grMoonDeclination, moonAscension);
|
||||
|
|
@ -335,7 +334,7 @@ grInitBackground()
|
|||
|
||||
// Set up the light source to the Sun position.
|
||||
sgCoord sunPosition;
|
||||
TheCelestBodies[eCBSun]->getPosition(&sunPosition);
|
||||
Sun->getPosition(&sunPosition);
|
||||
light->setPosition(sunPosition.xyz);
|
||||
|
||||
// Initialize the whole sky dome.
|
||||
|
|
@ -378,7 +377,7 @@ grInitBackground()
|
|||
const GLfloat fog_exp2_density = sqrt_m_log01 / visibility;
|
||||
|
||||
//Setup overall light level according to rain if any
|
||||
const float sol_angle = (float)TheCelestBodies[eCBSun]->getAngle();
|
||||
const float sol_angle = (float)Sun->getAngle();
|
||||
const float sky_brightness = (float)(1.0 + cos(sol_angle)) / 2.0f;
|
||||
float scene_brightness = (float)pow(sky_brightness, 0.5f);
|
||||
|
||||
|
|
@ -413,7 +412,7 @@ grInitBackground()
|
|||
NPlanets, APlanetsData, NStars, AStarsData);
|
||||
|
||||
sgCoord solpos;
|
||||
TheCelestBodies[eCBSun]->getPosition(&solpos);
|
||||
Sun->getPosition(&solpos);
|
||||
light->setPosition(solpos.xyz);
|
||||
|
||||
SceneAmbiant[0] = BaseAmbiant[0] * scene_brightness;
|
||||
|
|
@ -1020,19 +1019,19 @@ grUpdateSky(double currentTime, double accelTime)
|
|||
if (grSunDeclination >= 360.0f)
|
||||
grSunDeclination -= 360.0f;
|
||||
|
||||
TheCelestBodies[eCBSun]->setDeclination ( DEG2RAD(grSunDeclination) );
|
||||
Sun->setDeclination ( DEG2RAD(grSunDeclination) );
|
||||
|
||||
// 2) Update moon position
|
||||
grMoonDeclination += deltaDecl;
|
||||
if (grMoonDeclination >= 360.0f)
|
||||
grMoonDeclination -= 360.0f;
|
||||
|
||||
TheCelestBodies[eCBMoon]->setDeclination ( DEG2RAD(grMoonDeclination) );
|
||||
Moon->setmoonDeclination ( DEG2RAD(grMoonDeclination) );
|
||||
lastTimeLowSpeed = nextTimeLowSpeed;
|
||||
}
|
||||
|
||||
// 3) Update scene color and light
|
||||
const float sol_angle = (float)TheCelestBodies[eCBSun]->getAngle();
|
||||
const float sol_angle = (float)Sun->getAngle();
|
||||
const float sky_brightness = (float)(1.0 + cos(sol_angle)) / 2.0f;
|
||||
float scene_brightness = (float)pow(sky_brightness, 0.5f);
|
||||
|
||||
|
|
@ -1070,7 +1069,7 @@ grUpdateSky(double currentTime, double accelTime)
|
|||
|
||||
// 3c) update the main light position (it's at the sun position !)
|
||||
sgCoord solpos;
|
||||
TheCelestBodies[eCBSun]-> getPosition(&solpos);
|
||||
Sun-> getPosition(&solpos);
|
||||
ssgGetLight(0)-> setPosition(solpos.xyz);
|
||||
|
||||
// 3c) update scene colors.
|
||||
|
|
|
|||
Loading…
Reference in a new issue