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| 1 | +<!DOCTYPE html> |
| 2 | +<html> |
| 3 | + <head> |
| 4 | + <meta charset="utf-8" /> |
| 5 | + <title>three.js animation example</title> |
| 6 | + <style> |
| 7 | + body { |
| 8 | + margin: 0; |
| 9 | + } |
| 10 | + #record { |
| 11 | + position: fixed; |
| 12 | + left: 2rem; |
| 13 | + bottom: 2rem; |
| 14 | + } |
| 15 | + </style> |
| 16 | + </head> |
| 17 | + <body> |
| 18 | + <button id="record" type="button" onclick="record()">record</button> |
| 19 | + <!-- import ccapture.js (v1.1.0) from a CDN --> |
| 20 | + <script src=" https://unpkg.com/[email protected]/build/CCapture.all.min.js" ></script> |
| 21 | + <!-- import hydra-synth from a CDN --> |
| 22 | + <script src="https://unpkg.com/hydra-synth"></script> |
| 23 | + <script type="module"> |
| 24 | + const fps = 60; //animation framerate |
| 25 | + const duration = Math.PI; //animation duration (seconds) |
| 26 | + |
| 27 | + //rendered video dimentions |
| 28 | + const width = 1920; |
| 29 | + const height = 1080; |
| 30 | + |
| 31 | + let w, h; |
| 32 | + |
| 33 | + let start, capturer, recording; |
| 34 | + |
| 35 | + //set up hydra-synth |
| 36 | + let canvas = document.createElement('canvas'); |
| 37 | + canvas.width = window.innerWidth / 2; |
| 38 | + canvas.height = window.innerHeight / 2; |
| 39 | + canvas.id = 'hydra-canvas'; |
| 40 | + document.body.appendChild(canvas); |
| 41 | + |
| 42 | + const hydra = new Hydra({ |
| 43 | + canvas: canvas, |
| 44 | + detectAudio: false, |
| 45 | + enableStreamCapture: false, |
| 46 | + makeGlobal: false, |
| 47 | + autoLoop: false, |
| 48 | + }); |
| 49 | + |
| 50 | + var lastTime = 0; |
| 51 | + function animate() { |
| 52 | + requestAnimationFrame(animate); |
| 53 | + |
| 54 | + const now = (performance || Date).now(); |
| 55 | + if (start === undefined) start = now; |
| 56 | + const elapsed = now - start; |
| 57 | + const delta = now - lastTime; |
| 58 | + |
| 59 | + //create our own time variable |
| 60 | + //const time = elapsed / 1000; |
| 61 | + |
| 62 | + { |
| 63 | + //expose some hydra globals to your sketch (you may need to add to this list if a function or var you need is not included) |
| 64 | + const { |
| 65 | + bpm, |
| 66 | + gradient, |
| 67 | + height, |
| 68 | + hush, |
| 69 | + mouse, |
| 70 | + noise, |
| 71 | + o0, |
| 72 | + o1, |
| 73 | + o2, |
| 74 | + o3, |
| 75 | + osc, |
| 76 | + prev, |
| 77 | + render, |
| 78 | + s0, |
| 79 | + s1, |
| 80 | + s2, |
| 81 | + s3, |
| 82 | + screencap, |
| 83 | + setFunction, |
| 84 | + setResolution, |
| 85 | + shape, |
| 86 | + solid, |
| 87 | + speed, |
| 88 | + src, |
| 89 | + stats, |
| 90 | + tick, |
| 91 | + time, |
| 92 | + update, |
| 93 | + voronoi, |
| 94 | + width, |
| 95 | + } = hydra.synth; |
| 96 | + |
| 97 | + setResolution(w, h); |
| 98 | + |
| 99 | + //------------------- PASE YOUR HYDRA SKETCH HERE ------------------- |
| 100 | + |
| 101 | + solid(0, 0, 1, 1) |
| 102 | + .add(shape(4).rotate(() => time % 360)) |
| 103 | + .out(o0); |
| 104 | + |
| 105 | + //------------------------------------------------------------------- |
| 106 | + } |
| 107 | + |
| 108 | + hydra.tick(delta); |
| 109 | + |
| 110 | + if (capturer) capturer.capture(canvas); |
| 111 | + |
| 112 | + lastTime = now; |
| 113 | + } |
| 114 | + animate(); |
| 115 | + |
| 116 | + //set up ccapture.js with webm video format |
| 117 | + capturer = new CCapture({ |
| 118 | + format: 'webm', |
| 119 | + framerate: fps, |
| 120 | + timeLimit: duration, //record exactly one loop |
| 121 | + display: true, |
| 122 | + }); |
| 123 | + |
| 124 | + //canvas sizing |
| 125 | + function resize() { |
| 126 | + if (recording) { |
| 127 | + w = width; |
| 128 | + h = height; |
| 129 | + } else { |
| 130 | + w = window.innerWidth; |
| 131 | + h = window.innerHeight; |
| 132 | + } |
| 133 | + |
| 134 | + console.log({ w: Math.min(w, 1280), h: Math.min(h, 720) }); |
| 135 | + //hydra.synth.setResolution(Math.min(w, 1280), Math.min(h, 720)); |
| 136 | + } |
| 137 | + resize(); |
| 138 | + |
| 139 | + let resizeTimeout = -1; |
| 140 | + window.addEventListener('resize', () => { |
| 141 | + clearTimeout(resizeTimeout); |
| 142 | + resizeTimeout = setTimeout(resize, 200); |
| 143 | + }); |
| 144 | + |
| 145 | + //record using ccapture.js when the record button is pressed |
| 146 | + window.record = function () { |
| 147 | + console.log('begin recording'); |
| 148 | + |
| 149 | + start = undefined; //reset loop timing |
| 150 | + recording = true; |
| 151 | + resize(); //resize scene to video dimentions |
| 152 | + capturer.start(); |
| 153 | + }; |
| 154 | + </script> |
| 155 | + </body> |
| 156 | +</html> |
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