//
// Separated out rendering pieces and converted to ssg by Curt Olson,
// March 2000
-// 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 library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library 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
+// This library 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.
+// Library 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.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA 02111-1307, USA.
//
// $Id$
#include <stdio.h>
#include <iostream>
+#include <plib/sg.h>
#include <plib/ssg.h>
-#include <simgear/constants.h>
+#include <compiler.h>
#include "stars.hxx"
-#ifdef _MSC_VER
FG_USING_STD(cout);
FG_USING_STD(endl);
-#endif
+
// Set up star rendering call backs
static int sgStarPreDraw( ssgEntity *e ) {
/* cout << endl << "Star pre draw" << endl << "----------------"
<< endl << endl; */
+
+ ssgLeaf *f = (ssgLeaf *)e;
+ if ( f -> hasState () ) f->getState()->apply() ;
+
+ glPushAttrib( GL_DEPTH_BUFFER_BIT | GL_FOG_BIT );
+
glDisable( GL_DEPTH_TEST );
glDisable( GL_FOG );
- glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
+ // glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
return true;
}
static int sgStarPostDraw( ssgEntity *e ) {
/* cout << endl << "Star post draw" << endl << "----------------"
<< endl << endl; */
- glEnable( GL_DEPTH_TEST );
- glEnable( GL_FOG );
+
+ glPopAttrib();
+
+ // glEnable( GL_DEPTH_TEST );
+ // glEnable( GL_FOG );
return true;
}
float *color;
// determine which star structure to draw
- if ( sun_angle > (FG_PI_2 + 10.0 * DEG_TO_RAD ) ) {
+ if ( sun_angle > (0.5 * SGD_PI + 10.0 * SGD_DEGREES_TO_RADIANS ) ) {
// deep night
factor = 1.0;
cutoff = 4.5;
- } else if ( sun_angle > (FG_PI_2 + 8.8 * DEG_TO_RAD ) ) {
+ } else if ( sun_angle > (0.5 * SGD_PI + 8.8 * SGD_DEGREES_TO_RADIANS ) ) {
factor = 1.0;
cutoff = 3.8;
- } else if ( sun_angle > (FG_PI_2 + 7.5 * DEG_TO_RAD ) ) {
+ } else if ( sun_angle > (0.5 * SGD_PI + 7.5 * SGD_DEGREES_TO_RADIANS ) ) {
factor = 0.95;
cutoff = 3.1;
- } else if ( sun_angle > (FG_PI_2 + 7.0 * DEG_TO_RAD ) ) {
+ } else if ( sun_angle > (0.5 * SGD_PI + 7.0 * SGD_DEGREES_TO_RADIANS ) ) {
factor = 0.9;
cutoff = 2.4;
- } else if ( sun_angle > (FG_PI_2 + 6.5 * DEG_TO_RAD ) ) {
+ } else if ( sun_angle > (0.5 * SGD_PI + 6.5 * SGD_DEGREES_TO_RADIANS ) ) {
factor = 0.85;
cutoff = 1.8;
- } else if ( sun_angle > (FG_PI_2 + 6.0 * DEG_TO_RAD ) ) {
+ } else if ( sun_angle > (0.5 * SGD_PI + 6.0 * SGD_DEGREES_TO_RADIANS ) ) {
factor = 0.8;
cutoff = 1.2;
- } else if ( sun_angle > (FG_PI_2 + 5.5 * DEG_TO_RAD ) ) {
+ } else if ( sun_angle > (0.5 * SGD_PI + 5.5 * SGD_DEGREES_TO_RADIANS ) ) {
factor = 0.75;
cutoff = 0.6;
} else {