X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fmaterials%2Fpbrmaterial.h;h=18719bd44e98f8616f2fb7e2e85aac79d2baccda;hb=b0db98d71aeb32d9e57315b8a06ff4068aeccbca;hp=dadda9b52358c0b029f46971fcf4d2da73d088f1;hpb=5b652353d545a3190ea2d86ba82a87b2e3382a0d;p=libs%2Fgl.git

diff --git a/source/materials/pbrmaterial.h b/source/materials/pbrmaterial.h
index dadda9b5..18719bd4 100644
--- a/source/materials/pbrmaterial.h
+++ b/source/materials/pbrmaterial.h
@@ -8,6 +8,15 @@ namespace GL {
 
 class Texture2D;
 
+/**
+A physically-based material using the Cook-Torrance BRDF.
+
+The material is characterized by base color, metalness and roughness.  Fully
+metallic materials have no diffuse reflection and their specular reflection is
+tinted by the base color.  For fully dielectric materials base color determines
+the color of the diffuse reflection; specular reflection is untinted.
+Roughness affects how blurry specular reflections are.
+*/
 class PbrMaterial: public Material
 {
 public:
@@ -17,7 +26,6 @@ public:
 		static ActionMap shared_actions;
 
 	public:
-		Loader(PbrMaterial &);
 		Loader(PbrMaterial &, Collection &);
 
 	private:
@@ -32,6 +40,7 @@ private:
 	Property<float> occlusion;
 	Property<Color> emission;
 	const Texture2D &fresnel_lookup;
+	const Sampler &fresnel_sampler;
 
 	static const Tag texture_tags[];
 
@@ -47,6 +56,7 @@ protected:
 public:
 	virtual const Tag *get_texture_tags() const { return texture_tags; }
 	virtual const Texture *get_texture(Tag) const;
+	virtual const Sampler *get_sampler(Tag) const;
 
 	void set_base_color(const Color &);
 	void set_base_color_map(const Texture *);