@absulit/points
Version:
A Generative Art library made in WebGPU
47 lines (43 loc) • 1.24 kB
JavaScript
/**
* Utilities for audio work.
* <br>
* <br>
* These are wgsl functions, not js functions.
* The function is enclosed in a js string constant,
* to be appended into the code to reference it in the string shader.
* @module points/audio
*/
/**
* Average of all the value in sound.data (Sound struct in {@link module:defaultStructs})
* @param {Sound} sound
* @returns {f32} average result
* @example
* // js
* import { audioAverage } from 'points/audio';
* points.setAudio('audio', 'myaudio.ogg', volume, loop, autoplay);
*
* // wgsl string
* ${audioAverage}
* let value = audioAverage(audio); // audio is the audio Storage name set in Points#setAudio
*/
export const audioAverage = /*wgsl*/`
fn audioAverage(sound:Sound) -> f32 {
var audioAverage = 0.;
for (var index = 0; index < i32(params.audioLength); index++) {
let audioValue = sound.data[index] / 256;
audioAverage += audioValue;
}
return audioAverage / params.audioLength;
}
`;
/**
* WIP
* @param {i32} segmentNum
* @returns {f32}
*/
export const audioAverageSegments = /*wgsl*/`
fn audioAverageSegments(segmentNum:i32) -> f32{
// arrayLength(&array)
return .0;
}
`;