//Point2 p = RandomUtil.uniform(bounds, seq);
Point2 p = RandomUtil.canonical2(seq);
seq.mark();
Color sample = colorModel.sample(seq);
seq.mark();
PathInfo pi = new PathInfo(scene, sample.getWavelengthPacket());
Lens lens = scene.getLens();
PathNode eyeTail = strategy.traceEyePath(lens, p,
pi, seq);