#include "sky.h"
+#include "../Time/event.h"
#include "../Time/fg_time.h"
#include "../Aircraft/aircraft.h"
float theta;
int i;
- printf("Generating the sky dome vertices.\n");
+ printf(" Generating the sky dome vertices.\n");
for ( i = 0; i < 12; i++ ) {
theta = (i * 30.0) * DEG_TO_RAD;
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;
void fgSkyColorsInit() {
struct fgLIGHT *l;
float sun_angle, diff;
- float outer_red_param, outer_red_amt, outer_red_diff;
- float middle_red_param, middle_red_amt, middle_red_diff;
+ float outer_param[3], outer_amt[3], outer_diff[3];
+ float middle_param[3], middle_amt[3], middle_diff[3];
int i, j;
l = &cur_light_params;
- printf("Generating the sky colors for each vertex.\n");
+ printf(" Generating the sky colors for each vertex.\n");
/* setup for the possibility of sunset effects */
sun_angle = l->sun_angle * RAD_TO_DEG;
if ( (sun_angle > 80.0) && (sun_angle < 100.0) ) {
/* 0.0 - 0.4 */
- outer_red_param = (10.0 - fabs(90.0 - sun_angle)) / 25.0;
- outer_red_diff = outer_red_param / 6.0;
- } else {
- outer_red_param = 0.0;
- outer_red_diff = 0.0;
- }
- printf(" outer_red_param = %.2f outer_red_diff = %.2f\n",
- outer_red_param, outer_red_diff);
+ outer_param[0] = (10.0 - fabs(90.0 - sun_angle)) / 25.0;
+ outer_param[1] = (10.0 - fabs(90.0 - sun_angle)) / 45.0;
+ outer_param[2] = 0.0;
- if ( (sun_angle > 85.0) && (sun_angle < 95.0) ) {
- /* 0.0 - 0.4 */
- middle_red_param = (5.0 - fabs(90.0 - sun_angle)) / 12.5;
- middle_red_diff = middle_red_param / 6.0;
+ middle_param[0] = (10.0 - fabs(90.0 - sun_angle)) / 40.0;
+ middle_param[1] = (10.0 - fabs(90.0 - sun_angle)) / 60.0;
+ middle_param[2] = 0.0;
+
+ outer_diff[0] = outer_param[0] / 6.0;
+ outer_diff[1] = outer_param[1] / 6.0;
+ outer_diff[2] = outer_param[2] / 6.0;
+
+ middle_diff[0] = middle_param[0] / 6.0;
+ middle_diff[1] = middle_param[1] / 6.0;
+ middle_diff[2] = middle_param[2] / 6.0;
} else {
- middle_red_param = 0.0;
- middle_red_diff = 0.0;
+ outer_param[0] = outer_param[1] = outer_param[2] = 0.0;
+ middle_param[0] = middle_param[1] = middle_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(" middle_red_param = %.2f middle_red_diff = %.2f\n",
- middle_red_param, middle_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 */
- outer_red_amt = outer_red_param;
- middle_red_amt = middle_red_param;
+ for ( j = 0; j < 3; j++ ) {
+ outer_amt[j] = outer_param[j];
+ middle_amt[j] = middle_param[j];
+ }
for ( i = 0; i < 6; i++ ) {
for ( j = 0; j < 3; j++ ) {
diff = l->sky_color[j] - l->fog_color[j];
+
inner_color[i][j] = l->sky_color[j] - diff * 0.3;
- middle_color[i][j] = l->sky_color[j] - diff * 0.9;
- outer_color[i][j] = l->fog_color[j];
+ middle_color[i][j] = l->sky_color[j] - diff * 0.9 + middle_amt[j];
+ outer_color[i][j] = l->fog_color[j] + outer_amt[j];
+
+ if ( middle_color[i][j] > 1.00 ) { middle_color[i][j] = 1.00; }
+ if ( middle_color[i][j] < 0.10 ) { middle_color[i][j] = 0.10; }
+ if ( outer_color[i][j] > 1.00 ) { outer_color[i][j] = 1.00; }
+ if ( outer_color[i][j] < 0.10 ) { outer_color[i][j] = 0.10; }
}
- outer_color[i][0] += outer_red_amt;
- middle_color[i][0] += middle_red_amt;
- if ( outer_color[i][0] > 1.0 ) { outer_color[i][0] = 1.0; }
- if ( middle_color[i][0] > 1.0 ) { middle_color[i][0] = 1.0; }
inner_color[i][3] = middle_color[i][3] = outer_color[i][3] =
l->sky_color[3];
- outer_red_amt -= outer_red_diff;
- middle_red_amt -= middle_red_diff;
+ for ( j = 0; j < 3; j++ ) {
+ outer_amt[j] -= outer_diff[j];
+ middle_amt[j] -= middle_diff[j];
+ }
+ /*
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("middle_color[%d] = %.2f %.2f %.2f %.2f\n", i,
printf("outer_color[%d] = %.2f %.2f %.2f %.2f\n", i,
outer_color[i][0], outer_color[i][1], outer_color[i][2],
outer_color[i][3]);
+ */
}
- outer_red_amt = 0.0;
- middle_red_amt = 0.0;
+ for ( j = 0; j < 3; j++ ) {
+ outer_amt[j] = 0.0;
+ middle_amt[j] = 0.0;
+ }
for ( i = 6; i < 12; i++ ) {
for ( j = 0; j < 3; j++ ) {
diff = l->sky_color[j] - l->fog_color[j];
+
inner_color[i][j] = l->sky_color[j] - diff * 0.3;
- middle_color[i][j] = l->sky_color[j] - diff * 0.9;
- outer_color[i][j] = l->fog_color[j];
+ middle_color[i][j] = l->sky_color[j] - diff * 0.9 + middle_amt[j];
+ outer_color[i][j] = l->fog_color[j] + outer_amt[j];
+
+ if ( middle_color[i][j] > 1.00 ) { middle_color[i][j] = 1.00; }
+ if ( middle_color[i][j] < 0.10 ) { middle_color[i][j] = 0.10; }
+ if ( outer_color[i][j] > 1.00 ) { outer_color[i][j] = 1.00; }
+ if ( outer_color[i][j] < 0.15 ) { outer_color[i][j] = 0.15; }
}
- outer_color[i][0] += outer_red_amt;
- middle_color[i][0] += middle_red_amt;
- if ( outer_color[i][0] > 1.0 ) { outer_color[i][0] = 1.0; }
- if ( middle_color[i][0] > 1.0 ) { middle_color[i][0] = 1.0; }
inner_color[i][3] = middle_color[i][3] = outer_color[i][3] =
l->sky_color[3];
- outer_red_amt += outer_red_diff;
- middle_red_amt += middle_red_diff;
+ for ( j = 0; j < 3; j++ ) {
+ outer_amt[j] += outer_diff[j];
+ middle_amt[j] += middle_diff[j];
+ }
+ /*
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("middle_color[%d] = %.2f %.2f %.2f %.2f\n", i,
printf("outer_color[%d] = %.2f %.2f %.2f %.2f\n", i,
outer_color[i][0], outer_color[i][1], outer_color[i][2],
outer_color[i][3]);
+ */
}
}
/* Initialize the sky structure and colors */
void fgSkyInit() {
+ printf("Initializing the sky\n");
+
fgSkyVerticesInit();
- fgSkyColorsInit();
+
+ /* regester fgSkyColorsInit() as an event to be run periodically */
+ fgEventRegister("fgSkyColorsInit()", fgSkyColorsInit,
+ FG_EVENT_READY, 30000);
}
/* $Log$
-/* Revision 1.7 1997/12/22 23:45:48 curt
-/* First stab at sunset/sunrise sky glow effects.
+/* 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.
*
projects / simgear.git / blobdiff