X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fmaterials%2Flight.h;h=4532d0d42c4035c2442fbcaf2e1eea414ce6c164;hb=3ac3a51c623271da815c8ee60c484445871753bf;hp=e94f3c5aca8b333c5a73f6c31082cd2d0afa34a3;hpb=7aaec9a70b8d7733429bec043f8e33e02956f266;p=libs%2Fgl.git

diff --git a/source/materials/light.h b/source/materials/light.h
index e94f3c5a..4532d0d4 100644
--- a/source/materials/light.h
+++ b/source/materials/light.h
@@ -21,7 +21,7 @@ is not 180 degrees, it's a spotlight.  Otherwise it's an omnidirectional point
 light.
 
 Lights are usually grouped with a Lighting object, which can be used in a
-Pipeline::Pass.
+Sequence::Step.
 
 Lights do not cast shadows by themselves.  See ShadowMap for that.
 */
@@ -35,23 +35,23 @@ public:
 
 	private:
 		void attenuation(float, float, float);
-		void diffuse(float, float, float);
+		void color(float, float, float);
 		void position(float, float, float, float);
-		void specular(float, float, float);
 		void spot_direction(float, float, float);
 		void spot_exponent(float);
 		void spot_cutoff(float);
 	};
 
 private:
-	Color diffuse;
-	Color specular;
+	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();
@@ -60,16 +60,21 @@ private:
 	void update_matrix();
 
 public:
-	/** Sets the diffuse (direction-independent) color of the Light.  Provided
-	to shaders with the name light_sources[i].diffuse. */
-	void set_diffuse(const Color &c);
+	/** Sets the color of the Light.  Provided
+	to shaders as light_sources[i].color. */
+	void set_color(const Color &);
 
-	/** Sets the specular (direction-dependent) color of the Light.  Provided to
-	shaders with the name light_sources[i].specular. */
-	void set_specular(const Color &c);
+	/** Sets a multiplier on how much light actually reaches the target.  Used
+	when modeling an atmosphere. */
+	void set_transmittance(const Color &);
 
-	const Color &get_diffuse() const { return diffuse; }
-	const Color &get_specular() const { return specular; }
+	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 &) { }
+	DEPRECATED const Color &get_diffuse() const { return color; }
+	DEPRECATED const Color &get_specular() const { return color; }
 
 	/** Sets the postion and orientation of the Light from a matrix.  Negative Z
 	axis is used as the spot direction, other axes are ignored. */
@@ -103,9 +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