X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fsky%2Fsky.hxx;h=4190508be387bc50ff850b3596a1cc26a678e9bc;hb=6531b1ebbc5c82bed5f52869511e880afd05bfcf;hp=1e5ba3473a2288a22e8b31e50016ad2bf5af5278;hpb=e15ffbc85630ae3ae947812cf2ef59162cce7b6b;p=simgear.git

diff --git a/simgear/sky/sky.hxx b/simgear/sky/sky.hxx
index 1e5ba347..4190508b 100644
--- a/simgear/sky/sky.hxx
+++ b/simgear/sky/sky.hxx
@@ -78,10 +78,10 @@ private:
 
     // near cloud visibility state variables
     bool in_puff;
-    double puff_length;
-    double puff_progression;
-    double ramp_up;
-    double ramp_down;
+    double puff_length;		// in seconds
+    double puff_progression;	// in seconds
+    double ramp_up;		// in seconds
+    double ramp_down;		// in seconds
 
 public:
 
@@ -126,11 +126,13 @@ public:
     // transition range, and simulated "puffs".
     void modify_vis( float alt, float time_factor );
 
-    // draw background portions of the sky
-    void draw_background();
+    // draw background portions of the sky ... do this before you draw
+    // the rest of your scene.
+    void preDraw();
 
-    // draw scenery elements of the sky
-    void draw_scene( float alt );
+    // draw translucent clouds ... do this after you've drawn all the
+    // oapaque elements of your scene.
+    void postDraw( float alt );
 
     // specify the texture path (optional, defaults to current directory)
     inline void texture_path( const string& path ) {
@@ -151,11 +153,14 @@ public:
     }
 
     // add a cloud layer (above sea level in meters)
-    void add_cloud_layer( double asl, double thickness, double transition,
+    void add_cloud_layer( double asl, double thickness,
+			  double transition, double span,
 			  SGCloudType type );
-    void add_cloud_layer( double asl, double thickness, double transition,
+    void add_cloud_layer( double asl, double thickness,
+			  double transition, double span,
 			  const string &tex_path );
-    void add_cloud_layer( double asl, double thickness, double transition,
+    void add_cloud_layer( double asl, double thickness,
+			  double transition, double span,
 			  ssgSimpleState *state );
 
     inline int get_num_layers() const { return cloud_layers.size(); }