«spinning doughnut» by Fredrik Olofsson

on 22 Dec'12 11:23 in graphicanimation3d
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//req. Canvas3D quark: Quarks.install("Canvas3D");
//works with both cocoa and qt GUI
//see thread https://www.listarc.bham.ac.uk/lists/sc-users/msg06458.html for more examples
//cmd+period to stop

(
	var width = 500, height = 400;
	var w, u;
	
	var segments= 40;
	var minorRadius= 0.667;
	var majorRadius= 1;
	
	w = Window("spinning doughnut", Rect(128, 64, width, height), false)
		.front;
	u = Canvas3D(w, Rect(0, 0, width, height));
	u.add(Canvas3DItem()
		.paths_(
			Array.fill(segments+1, {|i|
				var u= i/segments*2pi;
				Array.fill(segments+1, {|j|
						var v= j/segments*2pi;
						var x= (minorRadius*cos(v)+majorRadius)*cos(u);
						var y= (minorRadius*cos(v)+majorRadius)*sin(u);
						var z= minorRadius*sin(v);
						[x, y, z];
					});
				})
		)
	);
	u.animate(40, {|t|
		u.transforms = [
			Canvas3D.mRotateY(t/52%2pi*sin(t/30)),
			Canvas3D.mRotateX(t/50%2pi),
			Canvas3D.mScale(1, 1, sin(t/32)*2)
		];
	});
	CmdPeriod.doOnce({w.close});
)



//and with trails
(
	var width = 500, height = 400;
	var w, u;
	
	var segments= 40;
	var minorRadius= 2;
	var majorRadius= 1;
	
	w = Window("spinning doughnut tails", Rect(128, 64, width, height), false)
		.front;
	u = Canvas3D(w, Rect(0, 0, width, height));
	u.view.clearOnRefresh= false;
	u.add(Canvas3DItem()
		.paths_(
			Array.fill(segments+1, {|i|
				var u= i/segments*2pi;
				Array.fill(segments+1, {|j|
						var v= j/segments*2pi;
						var x= (minorRadius*cos(v)+majorRadius)*cos(u);
						var y= (minorRadius*cos(v)+majorRadius)*sin(u);
						var z= minorRadius*sin(v);
						[x, y, z];
					});
				})
		)
	);
	u.view.drawFunc= {
		Pen.fillColor= Color.grey(1, 0.1);	//alpha set trail amount
		Pen.fillRect(Rect(0, 0, width, height));
	}<>u.view.drawFunc;
	u.animate(40, {|t|
		u.transforms = [
			Canvas3D.mRotateY(t/22),
			Canvas3D.mRotateX(t/25*sin(t/23)),
			Canvas3D.mScale(1, 1, sin(t/24))
		];
	});
	CmdPeriod.doOnce({w.close});
)



//and with sound input from mic
(
	var width = 500, height = 400;
	var w, u, amp= 0.1;
	
	var segments= 25;
	var minorRadius= 0.5;
	var majorRadius= 1.5;
	
	w = Window("spinning wireframe doughnut", Rect(128, 64, width, height), false)
		.front;
	u = Canvas3D(w, Rect(0, 0, width, height));
	u.add(Canvas3DItem()
		.paths_(
			Array.fill(segments+1, {|i|
				var u= i/segments*2pi;
				Array.fill(segments+1, {|j|
					var v= j/segments*2pi;
					var x= (minorRadius*cos(v)+majorRadius)*cos(u);
					var y= (minorRadius*cos(v)+majorRadius)*sin(u);
					var z= minorRadius*sin(v);
					[x, y, z];
				});
			})
			++
			Array.fill(segments+1, {|i|
				var u= i/segments*2pi;
				Array.fill(segments+1, {|j|
					var v= j/segments*2pi;
					var x= (minorRadius*cos(u)+majorRadius)*cos(v);
					var y= (minorRadius*cos(u)+majorRadius)*sin(v);
					var z= minorRadius*sin(u);
					[x, y, z];
				});
			})
		)
	);
	u.animate(60, {|t|
		u.transforms = [
			Canvas3D.mRotateY(sin(t/42)*sin(t/53)),
			Canvas3D.mRotateX(sin(t/31)*sin(t/64)),
			Canvas3D.mRotateX(sin(t/20)*sin(t/75)),
			Canvas3D.mScale(amp, amp, sin(t/9)*sin(t/86))
		];
	});
	
	//--sound input
	s.waitForBoot{
		OSCFunc({|m| amp= m[3].explin(0.01, 1, 0.667, 1)}, \tr, s.addr);
		{SendTrig.kr(Impulse.kr(60), 0, Amplitude.kr(SoundIn.ar, 0.1, 0.4)); DC.ar(0)}.play;
	};
	
	CmdPeriod.doOnce({w.close});
)
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reception
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