git.scottworley.com Git - nt3d/blame_incremental

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Commit	Line	Data
	1	<html>
	2	<head>
	3	<title>Medusa</title>
	4	<script type="text/javascript" src="nt3d.js"></script>
	5	<script type="text/javascript">
	6	function finger(params, finger_crosssection, ring_num, ring_radius, finger_angle) {
	7	var path = [];
	8	var twirl_amplitute = Math.cos((ring_num * 2 * Math.PI) / params.finger_twirl_period);
	9	var twirl_angle = twirl_amplitute * params.finger_twirl_distance / (ring_radius * 2 * Math.PI);
	10	for (var finger_point = 0; finger_point <= params.finger_points; finger_point++) {
	11	var finger_progress = finger_point / params.finger_points;
	12	var angle = (finger_angle + twirl_angle * finger_progress) * 2 * Math.PI;
	13	var r = ring_radius;
	14	var x = r * Math.cos(angle);
	15	var y = r * Math.sin(angle);
	16	var z = params.finger_height * finger_progress;
	17	path.push([x, y, z]);
	18	}
	19	return nt3d.extrude(path, finger_crosssection, [0, 0, 1], nt3d.pathnormals_from_point(path, [0, 0, 0]));
	20	}
	21	function medusa(params) {
	22	var finger_crosssection = nt3d.circle(params.finger_radius, params.finger_faces);
	23	var fingers = [];
	24	for (var ring_num = 0; ring_num < params.num_rings; ring_num++) {
	25	var ring_radius = params.first_ring_radius + ring_num * params.ring_spacing;
	26	var num_fingers = Math.round((ring_radius * 2 * Math.PI) / params.finger_spacing);
	27	for (var finger_num = 0; finger_num < num_fingers; finger_num++) {
	28	var finger_angle = finger_num / num_fingers;
	29	fingers = fingers.concat(finger(params, finger_crosssection, ring_num, ring_radius, finger_angle));
	30	}
	31	}
	32
	33	return fingers;
	34	}
	35	var params = [["first_ring_radius", 20],
	36	["num_rings", 4],
	37	["ring_spacing", 10, "Space Between Rings"],
	38	["finger_spacing", 10],
	39	["finger_radius", 3],
	40	["finger_faces", 3],
	41	["finger_points", 20],
	42	["finger_twirl_distance", 50],
	43	["finger_twirl_period", 2, "Finger Twirl Period (1=same, 2=alternating)"],
	44	["finger_height", 100]];
	45	</script>
	46	</head>
	47	<body onload="nt3d.framework(medusa, params)">
	48	<h1>Medusa</h1>
	49	<p>An artsy thing.</p>
	50	</body>
	51	</html>