public void takeScreenshot(string fileName, Camera camera, HitableList world)
{
RayTracer rayTracer = new RayTracer(600, 800, 1, 8, (int)camera.vfov, false);
rayTracer.camera.origin = camera.origin;
rayTracer.camera.lookAt = camera.lookAt;
rayTracer.camera.updatePos();
rayTracer.world = world;
rayTracer.CreateBitmap(fileName, true, true);
}