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for Amazon @ BUCK — Feb 2021

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In this project, I was tasked with doing some rain effects for the Amazon Halo commercial.


One of the asks was for a particular droplet splash that hits the product. It needed to be able to be timed precisely and generate physically accurate secondary droplets. Because I hate simulating things, I decided I would design a procedural system for this that was seamless with the background rain.

The tool I made for this created two distinct pathways, one before the impact point, and one after for each of the secondary droplets, which needed to be parabolic instead of linear.

A similar rain system was made for the wider angle scene rain, just with less control over impact timing. Because it was procedural, a big obstacle I faced was needing to be able to have the rain stop on command. Simply reducing the raindrops of the system would result in raindrops disappearing mid-fall, so I had to come up with a way to have the rain drops complete their animation after the setting had been changed.


The ripples were a separate but similar system that allowed for a number of ripples to be animating at once across a surface. These ripples too needed to be choked without cutting off ripples mid-animation.

To avoid close-but-separate puddles from sharing ripples that wouldn’t have been able to propagate in real life, I temporarily shifted each puddle to a distant location in space where the ripples took place, then moved them back to their original locations before export.

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