From 25a99a241795d11a79e05dad50caaa359b7d71cf Mon Sep 17 00:00:00 2001
From: ehofman <ehofman>
Date: Sun, 16 Aug 2009 19:35:24 +0000
Subject: [PATCH] Expose the color of the sun (which is not the scene specular
 color anymore)

---
 src/Time/light.cxx | 27 +++++++++++++++++++++++++--
 src/Time/light.hxx |  1 +
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/src/Time/light.cxx b/src/Time/light.cxx
index 88a215f98..5050aad3c 100644
--- a/src/Time/light.cxx
+++ b/src/Time/light.cxx
@@ -71,6 +71,7 @@ FGLight::FGLight ()
       _scene_ambient(0, 0, 0, 0),
       _scene_diffuse(0, 0, 0, 0),
       _scene_specular(0, 0, 0, 0),
+      _sun_color(1, 1, 1, 1),
       _sky_color(0, 0, 0, 0),
       _fog_color(0, 0, 0, 0),
       _cloud_color(0, 0, 0, 0),
@@ -147,6 +148,15 @@ void FGLight::bind () {
     prop->tie("/rendering/scene/specular/red",SGRawValuePointer<float>(&_scene_specular[0]));
     prop->tie("/rendering/scene/specular/green",SGRawValuePointer<float>(&_scene_specular[1]));
     prop->tie("/rendering/scene/specular/blue",SGRawValuePointer<float>(&_scene_specular[2]));
+    prop->tie("/rendering/dome/sun/red",SGRawValuePointer<float>(&_sun_color[0]));
+    prop->tie("/rendering/dome/sun/green",SGRawValuePointer<float>(&_sun_color[1]));
+    prop->tie("/rendering/dome/sun/blue",SGRawValuePointer<float>(&_sun_color[2]));
+    prop->tie("/rendering/dome/sky/red",SGRawValuePointer<float>(&_sky_color[0]));
+    prop->tie("/rendering/dome/sky/green",SGRawValuePointer<float>(&_sky_color[1]));
+    prop->tie("/rendering/dome/sky/blue",SGRawValuePointer<float>(&_sky_color[2]));
+    prop->tie("/rendering/dome/fog/red",SGRawValuePointer<float>(&_fog_color[0]));
+    prop->tie("/rendering/dome/fog/green",SGRawValuePointer<float>(&_fog_color[1]));
+    prop->tie("/rendering/dome/fog/blue",SGRawValuePointer<float>(&_fog_color[1]));
 }
 
 void FGLight::unbind () {
@@ -161,6 +171,12 @@ void FGLight::unbind () {
     prop->untie("/rendering/scene/specular/red");
     prop->untie("/rendering/scene/specular/green");
     prop->untie("/rendering/scene/specular/blue");
+    prop->untie("/rendering/dome/sun/red");
+    prop->untie("/rendering/dome/sun/green");
+    prop->untie("/rendering/dome/sun/blue");
+    prop->untie("/rendering/dome/skyred");
+    prop->untie("/rendering/dome/sky/green");
+    prop->untie("/rendering/dome/sky/blue");
 }
 
 
@@ -245,7 +261,7 @@ void FGLight::update_sky_color () {
     _scene_ambient[3] = 1.0;
     gamma_correct_rgb( _scene_ambient.data() );
 
-    SGVec4f sun_color = thesky->get_sun_color();
+    SGVec4f sun_color = thesky->get_scene_color();
     float ndiff = (ambient + specular) / 2;
     float idiff = 1.0 - ndiff;
     _scene_diffuse[0] = (sun_color[0]*ndiff + _fog_color[0]*idiff) * diffuse;
@@ -259,6 +275,13 @@ void FGLight::update_sky_color () {
     _scene_specular[2] = sun_color[2] * specular;
     _scene_specular[3] = 1.0;
     gamma_correct_rgb( _scene_specular.data() );
+
+    sun_color = thesky->get_sun_color();
+    _sun_color[0] = sun_color[0];
+    _sun_color[1] = sun_color[1];
+    _sun_color[2] = sun_color[2];
+    _sun_color[3] = sun_color[3];
+    gamma_correct_rgb( _sun_color.data() );
 }
 
 
@@ -308,7 +331,7 @@ void FGLight::update_adj_fog_color () {
 
     // revert to unmodified values before usign them.
     //
-    SGVec4f sun_color = thesky->get_sun_color();
+    SGVec4f sun_color = thesky->get_scene_color();
 
     gamma_restore_rgb( _fog_color.data() );
     gamma_restore_rgb( _sky_color.data() );
diff --git a/src/Time/light.hxx b/src/Time/light.hxx
index ffffa5ab2..de84629b9 100644
--- a/src/Time/light.hxx
+++ b/src/Time/light.hxx
@@ -90,6 +90,7 @@ private:
     SGVec4f _scene_specular;
 
     // clear sky, fog and cloud color
+    SGVec4f _sun_color;
     SGVec4f _sky_color;
     SGVec4f _fog_color;
     SGVec4f _cloud_color;