void setupScene(void)
{
	camera.yaw = 0;
	camera.pitch = -15;
	camera.roll = 0;
	camera.fov = 90;
	camera.aspectRatio = 4. / 3.0;
	camera.position = Vector(0,165,0);
	
	camera.frameBegin();
	
	lightPos = Vector(-90, 700, -350);
	lightIntensity = 800000;
	ambientLight = Color(0.2, 0.2, 0.2);
	
	Plane* plane = new Plane;
	
	Texture* texture = new BitmapTexture("data/floor.bmp", 200);
	CheckerTexture* checker = new CheckerTexture;
	checker->color1 = Color(1, 1, 1);
	checker->color2 = Color(0, 0, 0);
	checker->scaling = 7;
	Lambert* lambert = new Lambert;
	lambert->color = Color(1, 1, 1);
	lambert->texture = texture;
	nodes.push_back({plane, lambert});
	
	const Uint32 colors[9] = {
		0xff2222, 0xaa4444, 0x886666,
		0x22ff22, 0x44aa44, 0x668866,
		0x2222ff, 0x4444aa, 0x666688,
	};

	for (int y = 0; y < 3; y++)
		for (int x = 0; x < 3; x++) {
			Vector center = Vector((x - 1) * 80, y * 80 + 25, 200);
			Sphere* s = new Sphere;
			s->O = center;
			s->R = 29 + 5 * x;
			Cube* c = new Cube;
			c->O = center + ((y == 2) ? Vector(0, 0, -35) : Vector(0, 0, 0));
			c->halfSide = y == 2 ? 10 : 25;
			CsgOp* diff;
			switch (y) {
				case 0:
					diff = new CsgMinus;
					diff->left = c;
					diff->right = s;
					break;
				case 1:
					diff = new CsgAnd;
					diff->left = c;
					diff->right = s;
					break;
				case 2:
					diff = new CsgMinus;
					diff->left = s;
					diff->right = c;
					break;
				default:
					break;
			}
			Phong* phong = new Phong;
			phong->color = Color(colors[y * 3 + x]);
			phong->specularExponent = 60;
			phong->specularMultiplier = 1;
			phong->texture = NULL;
			nodes.push_back({diff, phong});
		}
}