--- a/include/raytracer.h	Wed Mar 19 17:18:59 2008 +0100
+++ b/include/raytracer.h	Wed Mar 26 00:52:27 2008 +0100
@@ -36,6 +36,7 @@
 using namespace std;
 
 class Raytracer;
+
 struct RenderrowData {
 	Raytracer *rt;
 	int w;
@@ -43,9 +44,13 @@
 	Float *iter;
 };
 
+/**
+ * main ray tracer class
+ */
 class Raytracer
 {
 	Container *top;
+	Sampler *sampler;
 	Camera *camera;
 	vector<Light*> lights;
 	Colour bg_colour;
@@ -60,10 +65,11 @@
 public:
 	Raytracer(): top(NULL), camera(NULL), lights(), bg_colour(0.0, 0.0, 0.0),
 		ao_samples(0), num_threads(2), subsample(8), oversample(0), max_depth(3) {};
-	void render(int w, int h, Float *buffer);
+	void render();
 	Colour raytrace(Ray &ray, int depth, Shape *origin_shape);
 	void addshape(Shape *shape) { top->addShape(shape); };
 	void addlight(Light *light);
+	void setSampler(Sampler *sampl) { sampler = sampl; };
 	void setCamera(Camera *cam) { camera = cam; };
 	void setTop(Container *atop) { top = atop; };
 	Container *getTop() { return top; };