Stroke Macro For Shake

[user_deleted]

Hi a few months back I saw a macro that would stroke a rotoshape in Shake. I think it used dilate erode nodes and some inside and outside nodes. Does anyone know where I can find that?
Thanks
Pete

[user_deleted]

i dont know about the stroke macro and not sure exactly what you need, but edge detect might be a good start or if you need more control try the awesome alphaedge macro.
building the macro with dilate/erode and inside/outside should take less then 5 mins too. if you can be more precise what exactly you want to do i'm sure people can help you with it if needed.
++ chris

[user_deleted]

HI I have to attach a thin rope to a balloon that is floating around and was wondering if anyone had any suggestions.
Pete
barxseven.com

[user_deleted]

If both ends of the string are attached you can use 2 trackers and some trig functions (page 994 shake manual).

Here's an example script.

Color1 = Color(1920, 1080, 1, 0, red, red, 0, 0);
String = Color(700, 2, 1, 1, 1, 1, 1, 0);
Scale1 = Scale(String, distance(Tracker1.track1X,Tracker1.track1Y,Tracker1.track2X,Tracker1.track2Y)/width,
2, 0, height/2, 0, 0.5, 0);
Tracker1 = Tracker(0, "1", "1/64", "luminance", 0.75, "use start frame",
0.5, "stop", 1, 1, "v2.0", 0.3, 0.59, 0.11, 0, 10, "track1",
Hermite(0,[937.82,0,0]@1), Hermite(0,[433.693,0,0]@1), Hermite(0,[1,0,0]@1),
901.820251, 973.820251, 397.6929, 469.6929, 865.820251, 1009.82031,
361.6929, 505.692871, Hermite(0,[937.82,0,0]@1), Hermite(0,[433.693,0,0]@1),
1, 1, "track2", Hermite(0,[1181.52,97.35,97.35]@1), Hermite(0,[650.638,98.28,98.28]@1),
Hermite(0,[1,0,0]@1), 1145.53162, 1217.53162, 614.6379, 686.6379,
1109.53162, 1253.53162, 578.6379, 722.6379, Hermite(0,[1181.52,97.35,97.35]@1),
Hermite(0,[650.638,98.28,98.28]@1), 1, 1);
Rotate1 = Rotate(Scale1, atan2d((Tracker1.track2Y-Tracker1.track1Y),(Tracker1.track2X-Tracker1.track1X)),
1, 0, height/2, 0, 0.5, 0);
Pan1_track1 = Pan(Rotate1, NRiScript1.Tracker1.track1X, NRiScript1.Tracker1.track1Y,
0, 0.5, 0);
Under1 = Under(Color1, Pan1_track1, 0, 0, 0);

If you view the Under node and select the Tracker parameters, by moving either tracker the string will move
with them.

The Rotate node uses the atan2d(y,x) function to calculate the angle between the 2 trackers and
the Scale node uses the distance(x1,y1,x2,y2) function to calculate the distance between the 2 trackers.

Cheers, Alan.