X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fshadowmap.h;h=aeabaeb19a89895c1ba07b5f3666d239d118c6b2;hb=cd1f63c76463bb5ba78f6c3bb13aa40a97f1e004;hp=af3cf6f72c2b9af398e7faa317f6fdeaa810627f;hpb=a6c45f5cc50ea2ee2aecf8d4f3b69934e69c8f3f;p=libs%2Fgl.git

diff --git a/source/shadowmap.h b/source/shadowmap.h
index af3cf6f7..aeabaeb1 100644
--- a/source/shadowmap.h
+++ b/source/shadowmap.h
@@ -25,11 +25,14 @@ private:
 	unsigned size;
 	const Light &light;
 	mutable Framebuffer fbo;
+	mutable Matrix light_matrix;
 	unsigned unit;
 	Texture2D depth_buf;
 	Vector3 target;
 	float radius;
+	float depth_bias;
 	ProgramData shdata;
+	mutable bool rendered;
 
 public:
 	ShadowMap(unsigned, const Renderable &, const Light &);
@@ -39,10 +42,25 @@ public:
 	covered by the ShadowMap. */
 	void set_target(const Vector3 &, float);
 
+	/** Sets the darkness of shadows.  Must be in the range between 0.0 and 1.0,
+	inclusive.  Only usable with shaders, and provided through the
+	shadow_darkness uniform. */
+	void set_darkness(float);
+
+	/** Sets a distance beyond objects from which the shadow starts.  Expressed
+	in pixel-sized units.  Must be positive; values less than 1.0 are not
+	recommended.  Larger values produce less depth artifacts, but may prevent
+	thin objects from casting shadows on nearby sufraces. */
+	void set_depth_bias(float);
+
 	/** Sets the texture unit to bind the shadow map to during the rendering
-	phase.  The default is texture unit 3. */
+	phase.  Provided to shaders through the shadow and shadow_unit uniforms.
+	The default is texture unit 3. */
 	void set_texture_unit(unsigned);
 
+	virtual void setup_frame() const;
+	virtual void finish_frame() const;
+
 	virtual void render(Renderer &, const Tag &) const;
 };