Initial commit.

lighting.h

@@ -0,0 +1,74 @@
+// -*- C++ -*-
+
+#ifndef MBOSTOCK_LIGHTING_H
+#define MBOSTOCK_LIGHTING_H
+
+#include <OpenGL/gl.h>
+
+namespace mbostock {
+
+  class Light {
+  public:
+    Light();
+
+    void initialize() const;
+    void display() const;
+
+    void enable();
+    void disable();
+    inline bool enabled() const { return enabled_; }
+
+    void setAmbient(float r, float g, float b, float a);
+    void setDiffuse(float r, float g, float b, float a);
+    void setSpecular(float r, float g, float b, float a);
+    void setPosition(float x, float y, float z, float w);
+    void setSpotDirection(float x, float y, float z);
+    void setSpotExponent(float e);
+    void setConstantAttenuation(float a);
+    void setLinearAttenuation(float a);
+    void setQuadraticAttenuation(float a);
+
+  private:
+    GLenum id_;
+    bool enabled_;
+    float ambient_[4];
+    float diffuse_[4];
+    float specular_[4];
+    float position_[4];
+    float spotDirection_[3];
+    float spotExponent_;
+    float spotCutoff_;
+    float constantAttenuation_;
+    float linearAttenuation_;
+    float quadraticAttenuation_;
+
+    friend class Lighting;
+  };
+
+  class Lighting {
+  public:
+    Lighting();
+
+    void initialize() const;
+    void display() const;
+
+    void setGlobalAmbient(float r, float g, float b, float a);
+    inline Light& light(int i) { return lights_[i]; }
+    inline int lights() const { return 8; }
+
+  private:
+    float globalAmbient_[4];
+    Light lights_[8];
+  };
+
+  class Lightings {
+  public:
+    static const Lighting& standard();
+
+  private:
+    Lightings();
+  };
+
+}
+
+#endif