diff -r 76b254ce92cf -r 6493fb65f0b1 src/raytracer.cc
--- a/src/raytracer.cc	Wed Mar 19 17:18:59 2008 +0100
+++ b/src/raytracer.cc	Wed Mar 26 00:52:27 2008 +0100
@@ -442,11 +442,38 @@
 	return (void *)d;
 }
 
-void Raytracer::render(int w, int h, Float *buffer)
+void Raytracer::render()
 {
-	if (!camera || !top || !buffer)
+	if (!sampler || !camera || !top)
 		return;
 
+	// create workers
+	// ...
+
+	sampler->init();
+	int sampnum = 0;
+	while ( (sampnum = sampler->initSampleSet()) > 0 )
+	{
+		Sample *sample, *prev = NULL;
+		while ( (sample = sampler->nextSample(prev)) != NULL )
+		{
+			Ray ray = camera->makeRay(sample);
+			//raystack->push(ray);
+
+			// in worker:
+			Colour col = raytrace(ray, 0, NULL);
+			sampler->saveSample(sample, col);
+
+			delete prev;
+			prev = sample;
+		}
+	}
+
+	// wait for workers
+	// ...
+
+#if 0
+
 	RenderrowData *d;
 
 	Float S = 0.5/w;
@@ -483,7 +510,7 @@
 			dbgmsg(0, "\nE pthread_create unsuccessful, return code was %d\n", rc);
 			exit(1);
 		}
-		/* when 't' owerflows, reset it */
+		/* when 't' overflows, reset it */
 		if (t >= num_threads)
 			t = 0;
 		/* wait for next thread in fifo queue, so the descriptor can be reused;
@@ -506,6 +533,8 @@
 		if (pthread_join(threads[t], (void**)&d) == 0)
 			free(d);
 #endif
+
+#endif
 }
 
 void Raytracer::addlight(Light *light)