X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fshadowmap.h;h=986e0d96d039936b56758495da9a84954c007074;hb=c4fa55619539de9045167250d5b1c13d1827cf7a;hp=11407462c3e1922c48cd9bb0b3725829e207f595;hpb=7cbe8cc9893fe14f889321bd55e78b0ed6503e23;p=libs%2Fgl.git

diff --git a/source/shadowmap.h b/source/shadowmap.h
index 11407462..986e0d96 100644
--- a/source/shadowmap.h
+++ b/source/shadowmap.h
@@ -3,6 +3,7 @@
 
 #include "effect.h"
 #include "framebuffer.h"
+#include "programdata.h"
 #include "texture2d.h"
 #include "vector.h"
 
@@ -28,6 +29,8 @@ private:
 	Texture2D depth_buf;
 	Vector3 target;
 	float radius;
+	float depth_bias;
+	ProgramData shdata;
 
 public:
 	ShadowMap(unsigned, const Renderable &, const Light &);
@@ -37,8 +40,20 @@ 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 render(Renderer &, const Tag &) const;