Etch a Sketch

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soundnut
Met Resolume in a bar the other day
Posts: 4
Joined: Wed Mar 05, 2014 14:52

Etch a Sketch

Post by soundnut »

Hey All,
Newbie here...
Wondering if anyone can clue me in on how to accomplish the "etch a sketch" type of effect I've seen used quite a bit on projection mapping videos show on youtube:

I have a bunch of 2'x2'x2' cubes setup in a pyramid stack and wanna know how to do the "edge drawing" or as I call it etch sketch type effect.
Thanks in advance
Happy Mapping

DayVeeJay
Is seriously in love with Resolume. Met the parents and everything
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Location: Chicago, IL

Re: Etch a Sketch

Post by DayVeeJay »

Let's say you're mapping a single cube. You're essentially doing the same thing on three different surfaces (only 3 of 6 are visible). Use After Effects outside edge of your AE composition. I often use the Vegas effect to do this. Should you need help doing this look up "After Effects EKG effect Vegas". Render it out and map the video to each side of your cube. THis is a very basic way of doing it. Once you do it, you'll understand how to do more advanced tracing.

soundnut
Met Resolume in a bar the other day
Posts: 4
Joined: Wed Mar 05, 2014 14:52

Re: Etch a Sketch

Post by soundnut »

Thanks for the quick reply Day VeeJay :)
I kinda figured the only way to do it was keyframe animation. Some people are using QC, Cinema 4D or After Effects.
Any QC guys wanna chime in on how this could be done in Quartz ?? Are there any plugins, patches,modules etc available ?

fruitygreen
Hasn't felt like this about software in a long time
Posts: 134
Joined: Sat Oct 04, 2008 08:52

Animated Line Stroke

Post by fruitygreen »

Used to do alot of the "Etch a Sketch" and/or "Animated Line Stroke" stuff.

With AfterEffects (AE) it is very easy to do simple to complex line strokes.

Check here:http://library.creativecow.net/articles ... stroke.php

With additional plugins for AE you can make it glow, distort, shimmer and so on.

AfterEffects would be the tool for this.
QuartzComposer is free but limited.

Hope that helps

arindamliveguitar
Hasn't felt like this about software in a long time
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Joined: Thu Jun 28, 2012 18:01

Re: Etch a Sketch

Post by arindamliveguitar »

I use cinema 4d and for this effect i use splines to model the structure and then use sweep nurbs and animate the end growth parameter with a glowing type texture

soundnut
Met Resolume in a bar the other day
Posts: 4
Joined: Wed Mar 05, 2014 14:52

Re: Etch a Sketch

Post by soundnut »

Tried Cinema4D last night…. lotsa splines,nerbs and arrays. Strartin to get somewhere.
I will give the AE tutorial a run tonight.
Thanks for all the helpful replies :)

najrock
Hasn't felt like this about software in a long time
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Re: Etch a Sketch

Post by najrock »

C4d gives you the best control over the look of your tracers... Iike using trapcode 3d stroke in ae

The think that makes them the coolest is creative animation curves and also animating your taper as it flies around

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