X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flighting.h;h=40360fc588508e9cc13cfd63f1b826f972017fea;hb=0c1e15e36a46bada35b905b2bdd35f6f48ce7cb0;hp=8b3feb5f343af74622aa26b8b9689697a8da09a3;hpb=fc0f53b1981436d39a27884376e852dca5671fda;p=libs%2Fgl.git

diff --git a/source/lighting.h b/source/lighting.h
index 8b3feb5f..40360fc5 100644
--- a/source/lighting.h
+++ b/source/lighting.h
@@ -22,8 +22,10 @@ class Lighting: public Bindable<Lighting>
 private:
 	Color ambient;
 	Color sky_color;
-	Vector3 sky_direction;
+	Vector3 zenith_direction;
 	Geometry::Angle<float> horizon_angle;
+	Color fog_color;
+	float fog_density;
 	std::vector<const Light *> lights;
 
 public:
@@ -37,14 +39,27 @@ public:
 	/** Sets the color of the sky at zenith.  Has no effect without shaders. */
 	void set_sky_color(const Color &);
 
-	/** Sets the direction of the sky.  Defaults to positive Z axis.  Has no
+	/** Sets the direction of the zenith.  Defaults to positive Z axis.  Has no
 	effect without shaders. */
-	void set_sky_direction(const Vector3 &);
+	void set_zenith_direction(const Vector3 &);
+
+	/// Deprecated alias for set_zenith_direction
+	void set_sky_direction(const Vector3 &d) { set_zenith_direction(d); }
 
 	/** Sets the angle where skylight cuts off, counted from the true horizon.
 	Has no effect without shaders. */
 	void set_horizon_angle(const Geometry::Angle<float> &);
 
+	/** Sets the fog color, which is blended into distant surfaces. */
+	void set_fog_color(const Color &);
+
+	/** Sets the density of the fog.  Zero means no fog. */
+	void set_fog_density(float);
+
+	/** Sets the density of the fog so that the blending factor at the given
+	distance is 50%. */
+	void set_fog_half_distance(float);
+
 	/** Attaches a light source.  If the attachment index is greater than
 	LightUnit::get_n_units, the Lighting can't be bound for legacy mode. */
 	void attach(unsigned, const Light &);