How to make standing waves in touch designer

Beginners
1

Hi All,

I am struggling with how to get a standing wave visual in touch designer, currently I am animating a line using a traveling wave by changing the phase of the “wave” operator. However, I need a standing wave visual where the start and end points of the line are always in the same spot.

Let me know if you can help or if there are any good tutorials I am missing.

Here is an animated gif of what I am talking about: Propagative vs. standing waves | APMR

I am also attaching what I have so far so that anyone who helps can see where I am at. Essentially I have a line op being animated into a traveling wave that I can change the amplitude, frequency, ect. of.
TravelingWave.toe (5.2 KB)

2

You were pretty close, however you can simply use the pattern CHOP to achieve the standing wave and use a sin wave to drive the amplitude.

TravelingWave.toe (7.4 KB)

3

Thank you! That makes so much sense…my other solution was going to be to rotate it in 3D space…but this is way more intuitive.

4

I was curious if anyone had any thoughts on how to make a standing wave work on a 45 degree angle as well? For instance, in this image, the sinusoidal wave is still following just the y axis instead of the new 45 degree angle of the line

image
image716×754 21.4 KB

5

Have a look at adding a Pattern CHOP with it set to generate a Ramp to the existing Pattern CHOP generating the sine wave - and make sure the lengths between the two are the same (you might want to match the lengths of those two to the number of points in your Line SOP ie.1000)