First quick hack at panel shading.

[flightgear.git] / src / Time / light.cxx

diff --git a/src/Time/light.cxx b/src/Time/light.cxx
index d8a23e1eaff87d736f850c19b1e4e8583524051c..b7c4a6b819f91e90b0336a923777c43041f7f3d3 100644 (file)
--- a/src/Time/light.cxx
+++ b/src/Time/light.cxx
@@ -117,7 +117,7 @@ void fgLIGHT::Update( void ) {
     // calculate lighting parameters based on sun's relative angle to
     // local up
 
-    deg = sun_angle * 180.0 / FG_PI;
+    deg = sun_angle * RAD_TO_DEG;
     FG_LOG( FG_EVENT, FG_INFO, "  Sun angle = " << deg );
 
     ambient = ambient_tbl->interpolate( deg );
@@ -137,10 +137,12 @@ void fgLIGHT::Update( void ) {
     scene_ambient[0] = white[0] * ambient;
     scene_ambient[1] = white[1] * ambient;
     scene_ambient[2] = white[2] * ambient;
+    scene_ambient[3] = 1.0;
 
     scene_diffuse[0] = white[0] * diffuse;
     scene_diffuse[1] = white[1] * diffuse;
     scene_diffuse[2] = white[2] * diffuse;
+    scene_diffuse[3] = 1.0;
 
     // set sky color
     sky_color[0] = base_sky_color[0] * sky_brightness;