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Three.js Essentials by Jos Dirksen

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Creating a particle system by hand

Now that we've seen our first particle system in action, let's look at how we can create a particle system from a custom geometry. For this, we're going to visualize the waveform from our audio as a number of particle systems. The result will look something like the following screenshot, where each line from left to right is a single particle system (the 04.02-particle-line-output.html file):

Creating a particle system by hand

To accomplish this sound visualization, we need to perform pretty much the same steps as we saw in the previous example. We need to configure our audio. Next, we need to access a NodeAnalyser interface to get the waveform; ...

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