X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fmaterials%2Flight.h;h=4532d0d42c4035c2442fbcaf2e1eea414ce6c164;hb=a275d25eccad43716c5dcf91f8bc4af2a53c0445;hp=d097d04ae435157ebb1c4ddd18cc2bd5857d37d0;hpb=615f1717f32064a7adb2b848e8646c2c3cf11f61;p=libs%2Fgl.git

diff --git a/source/materials/light.h b/source/materials/light.h
index d097d04a..4532d0d4 100644
--- a/source/materials/light.h
+++ b/source/materials/light.h
@@ -44,12 +44,14 @@ public:
 
 private:
 	Color color;
+	Color transmittance;
 	Vector4 position;
 	Vector3 spot_dir;
 	Vector3 direction;
 	float spot_exp;
 	Geometry::Angle<float> spot_cutoff;
 	float attenuation[3];
+	unsigned generation;
 
 public:
 	Light();
@@ -62,7 +64,12 @@ public:
 	to shaders as light_sources[i].color. */
 	void set_color(const Color &);
 
+	/** Sets a multiplier on how much light actually reaches the target.  Used
+	when modeling an atmosphere. */
+	void set_transmittance(const Color &);
+
 	const Color &get_color() const { return color; }
+	const Color &get_transmittance() const { return transmittance; }
 
 	DEPRECATED void set_diffuse(const Color &c) { set_color(c); }
 	DEPRECATED void set_specular(const Color &) { }
@@ -101,9 +108,11 @@ public:
 	void set_attenuation(float, float, float);
 	const float *get_attenuation() const { return attenuation; }
 
-	/** Updates a ProgramData object with the uniforms for the Light.  A view
-	matrix and light source index must be passed in. */
-	void update_shader_data(ProgramData &, const Matrix &, unsigned) const;
+	unsigned get_generation() const { return generation; }
+
+	/** Updates a ProgramData object with the uniforms for the Light.  A light
+	source index must be passed in.  Primarily used by Lighting. */
+	void update_shader_data(ProgramData &, unsigned) const;
 };
 
 } // namespace GL