diff -r 79b516a3803d -r 76b7bd51d64a ccdemos/realtime.cc
--- a/ccdemos/realtime.cc	Fri Nov 30 00:44:51 2007 +0100
+++ b/ccdemos/realtime.cc	Mon Dec 03 01:49:23 2007 +0100
@@ -4,7 +4,7 @@
 
 int w = 480;
 int h = 288;
-float *render_buffer;
+Float *render_buffer;
 
 Raytracer rt;
 Camera cam;
@@ -19,7 +19,7 @@
 
 	Uint32 *bufp = (Uint32 *)screen->pixels;
 	unsigned char c[3];
-	for (float *fd = render_buffer; fd != render_buffer + w*h*3; fd += 3)
+	for (Float *fd = render_buffer; fd != render_buffer + w*h*3; fd += 3)
 	{
 		for (int i = 0; i < 3; i++)
 		{
@@ -60,10 +60,10 @@
 	}
 
 	/* initialize raytracer and prepare scene */
-	render_buffer = (float *) malloc(w*h*3*sizeof(float));
+	render_buffer = (Float *) malloc(w*h*3*sizeof(Float));
 
 	rt.setThreads(2);
-	rt.setMaxDepth(1);
+	rt.setMaxDepth(3);
 
 	KdTree top;
 	rt.setTop(&top);
@@ -79,7 +79,7 @@
 	Material mat_sph(Colour(1.0, 1.0, 1.0));
 	for (int y=0; y<10; y++)
 		for (int x=0; x<10; x++)
-			rt.addshape(new Sphere(Vector3(x*2-10, (float)random()/RAND_MAX*5.0, y*2-10), 0.45, &mat_sph));
+			rt.addshape(new Sphere(Vector3(x*2-10, (Float)random()/RAND_MAX*5.0, y*2-10), 0.45, &mat_sph));
 
 	rt.setCamera(&cam);
 	cam.setEye(Vector3(0,0,10));
@@ -91,7 +91,7 @@
 	/* loop... */
 	SDL_Event event;
 	bool quit = false;
-	float roty = 0.0, rotx = 0.0, move = 0.0;
+	Float roty = 0.0, rotx = 0.0, move = 0.0;
 	while (!quit)
 	{
 		while (SDL_PollEvent(&event))
@@ -100,7 +100,7 @@
 				case SDL_VIDEORESIZE:
 					w = event.resize.w;
 					h = event.resize.h;
-					render_buffer = (float *) realloc(render_buffer, w*h*3*sizeof(float));
+					render_buffer = (Float *) realloc(render_buffer, w*h*3*sizeof(Float));
 					screen = SDL_SetVideoMode(w, h, 32, SDL_HWSURFACE|SDL_DOUBLEBUF|SDL_RESIZABLE);
 					break;
 				case SDL_KEYDOWN: