// $Id$
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
#include <stdio.h>
#include <iostream>
if ( sun_angle > (FG_PI_2 + 10.0 * DEG_TO_RAD ) ) {
// deep night
factor = 1.0;
- cutoff = 4.2;
+ cutoff = 4.5;
} else if ( sun_angle > (FG_PI_2 + 8.8 * DEG_TO_RAD ) ) {
factor = 1.0;
- cutoff = 3.6;
+ cutoff = 3.8;
} else if ( sun_angle > (FG_PI_2 + 7.5 * DEG_TO_RAD ) ) {
factor = 0.95;
- cutoff = 3.0;
+ cutoff = 3.1;
} else if ( sun_angle > (FG_PI_2 + 7.0 * DEG_TO_RAD ) ) {
factor = 0.9;
cutoff = 2.4;
// color (magnitude)
mag = star_data[i][2];
if ( mag < cutoff ) {
- nmag = ( 4 - mag ) / 5.0; // translate to 0 ... 1.0 scale
- alpha = nmag * 0.7 + 0.3; // translate to a 0.3 ... 1.0 scale
+ nmag = ( 4.5 - mag ) / 5.5; // translate to 0 ... 1.0 scale
+ // alpha = nmag * 0.7 + 0.3; // translate to a 0.3 ... 1.0 scale
+ alpha = nmag * 0.85 + 0.15; // translate to a 0.15 ... 1.0 scale
alpha *= factor; // dim when the sun is brighter
} else {
alpha = 0.0;