X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fshadowmap.h;h=119d369c1eb6db052048d941008c18f7b3d58560;hb=3b159edbe4e80a2bc19c4c2fcd42cb996b9fbfe0;hp=af3cf6f72c2b9af398e7faa317f6fdeaa810627f;hpb=a6c45f5cc50ea2ee2aecf8d4f3b69934e69c8f3f;p=libs%2Fgl.git

diff --git a/source/shadowmap.h b/source/shadowmap.h
index af3cf6f7..119d369c 100644
--- a/source/shadowmap.h
+++ b/source/shadowmap.h
@@ -1,5 +1,5 @@
-#ifndef SHADOWMAP_H_
-#define SHADOWMAP_H_
+#ifndef MSP_GL_SHADOWMAP_H_
+#define MSP_GL_SHADOWMAP_H_
 
 #include "effect.h"
 #include "framebuffer.h"
@@ -25,11 +25,13 @@ private:
 	unsigned size;
 	const Light &light;
 	mutable Framebuffer fbo;
-	unsigned unit;
+	mutable Matrix shadow_matrix;
 	Texture2D depth_buf;
 	Vector3 target;
 	float radius;
-	ProgramData shdata;
+	float depth_bias;
+	mutable ProgramData shdata;
+	mutable bool rendered;
 
 public:
 	ShadowMap(unsigned, const Renderable &, const Light &);
@@ -39,9 +41,19 @@ public:
 	covered by the ShadowMap. */
 	void set_target(const Vector3 &, float);
 
-	/** Sets the texture unit to bind the shadow map to during the rendering
-	phase.  The default is texture unit 3. */
-	void set_texture_unit(unsigned);
+	/** 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);
+
+	virtual void setup_frame() const;
+	virtual void finish_frame() const;
 
 	virtual void render(Renderer &, const Tag &) const;
 };