how to create voronoi morph

[tom22]

So I stumbled across this effect and i'm really curious as to how it was created. Any ideas? Thanks.

https://www.youtube.com/watch?v=Exkbj37yu14

[mestela]

I had a go. I'm positive there's an easy way to do this in mops, but I'm a masochist and enjoyed the challenge of doing this from scratch. Definitely look into mops if you want to do more of these kind of things!

 

The vex looks a bit scary, but its mainly a few ramps controlling when and how the chunks get moved:

• get a horizontal ramp from the bounding box
• run it through a few channel ramps, each ramp controls a different part of the effect; eg a ramp that tells the noise to start at 0, go to 1, then back to 0, while another ramp determines when the pieces morph from word A to word B, while others control scale
• add time to the ramped values, clamp it, so that it slides through the words
• modify the transform of each chunk. make chunks from word A start with a scale of 1, then scale to 0, while word B does the opposite
• word A chunks start with no rotation, then gradually start to rotate while they scale down, word B does the opposite
• finally blend (lerp) the positions from word A to word B, adding some animated noise in the middle bit as they move. The cross-fading of scales hides the transition between word A and word B.

 

 

voronoi_morph_v03.hip

[toadstorm]

This would be a MOPs way to do it... less VEX but a few more nodes involved to get the scale fake working as intended. If you could guarantee an equal number of chunks on both sides of the equation, it'd be easier to blend transforms from A to B via MOPs Apply Attributes, but it's hard to guarantee chunk counts with voronoi.

voronoi_morph.hip

Edited April 20, 2021 by toadstorm
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[mestela]

Yeah the differing count from the two voronoi fractures is a pain. In my setup I cheat, if a chunk from one word can’t find a match in the other word, it just looks up a point by closest distance instead.

[tom22]

Thank you so much!!