// 2.1 intializes the geometry (choose only one initialization)
	//initDiffuse(scene);
	//initSpecular(scene);
	//initDiffuseSpecular(scene);
	//initRefraction(scene);
	initEmissive(scene);

// 3 - Computes the scene
	scene.compute(1,100);	//first : number of rebound | second : number of random rays send for global illumination