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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Raytracer</title>
<link rel="stylesheet" href="https://unpkg.com/spectre.css/dist/spectre.min.css">
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<div class="container">
<div class="columns">
<div class="column col-xl-12">
<div id="output-wrapper" class="p-centered">
<canvas id="render-output"></canvas>
</div>
</div>
</div>
<div class="container grid-xl">
<div class="columns">
<div class="column">
<ul class="tab">
<li id="demo-tab" class="tab-item active">
<a href="#">Raytracing demo</a>
</li>
<li id="benchmark-tab" class="tab-item">
<a href="#">CPU Benchmark</a>
</li>
</ul>
</div>
</div>
<div id="demo-mode" class="columns controls">
<div class="column">
<div class="columns">
<div class="column col-3">
<p>A minimal ray tracing engine written from scratch in JS. No graphics APIs or libraries are used, only a single HTML5 canvas call to draw the generated bitmap image.</p>
<p>Various effects are supported, including recursive optical reflections and refractions, and <a href="https://en.wikipedia.org/wiki/Phong_reflection_model">Phong shading</a>. Basic multi-threading is implemented using the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API" target="_blank">Web Workers API</a>.</p>
<p>The raytracer can also produce CPU performance benchmarks.</p>
<p>The source is on <a href="https://github.com/jamesbarnett91/js-raytracer" target="_blank">GitHub</a>.</p>
</div>
<div class="divider-vert"></div>
<div class="column col-2">
<span class="render-option-heading">Render options</span>
<div class="form-group">
<label class="form-switch">
<input id="diffuse-toggle" type="checkbox" checked>
<i class="form-icon"></i> Diffuse lighting
</label>
</div>
<div class="form-group">
<label class="form-switch">
<input id="specular-toggle" type="checkbox" checked>
<i class="form-icon"></i> Specular lighting
</label>
</div>
<div class="form-group">
<label class="form-switch">
<input id="shadows-toggle" type="checkbox" checked>
<i class="form-icon"></i> Shadows
</label>
</div>
<div class="form-group">
<label class="form-switch">
<input id="reflections-toggle" type="checkbox" checked>
<i class="form-icon"></i> Reflections
</label>
</div>
<div class="form-group">
<label class="form-switch">
<input id="refractions-toggle" type="checkbox" checked>
<i class="form-icon"></i> Refractions
</label>
</div>
</div>
<div class="column col-3">
<span class="render-option-heading">Performance options</span>
<div class="form-group">
<label class="form-switch">
<input id="direct-transfer" type="checkbox" checked>
<i class="form-icon"></i> Zero-copy array transfer
</label>
</div>
<div class="form-group">
<label class="form-switch">
<input id="enable-threads-toggle" type="checkbox" checked>
<i class="form-icon"></i> Multi-threaded rendering
</label>
</div>
<div class="form-group nested-slider">
<label class="form-label label-sm" for="threads">Render threads</label>
<!-- TODO style -->
<div class="input-group">
<input id="threads" class="slider" type="range" min="2" max="32" value="4" step="2">
<span id="threads-value" class="input-group-addon">4</span>
</div>
</div>
<div class="form-group">
<label class="form-group">
<label id="chunk-size-label" class="form-label label-sm" for="res">Chunk size</label>
<select id="chunk-size" class="form-select select-sm">
<option value="0" selected>Auto</option>
<option value="8">8x8</option>
<option value="16">16x16</option>
<option value="32">32x32</option>
<option value="64">64x64</option>
<option value="128">128x128</option>
<option value="256">256x256</option>
</select>
</label>
</div>
<div class="form-group">
<label class="form-group">
<label id="chunk-allocation-mode-label" class="form-label label-sm" for="res">Chunk allocation mode</label>
<select id="chunk-allocation-mode" class="form-select select-sm">
<option value="SEQUENTIAL" selected>Sequential</option>
<option value="RANDOM">Random</option>
<option value="CENTER_TO_EDGE">Center to edge</option>
<option value="EDGE_TO_CENTER">Edge to center</option>
</select>
</label>
</div>
</div>
<div class="column col-4">
<div class="form-group">
<label id="res-label" class="form-label label-sm" for="res">Resolution</label>
<select id="res" class="form-select select-sm">
<option value="360p">360p</option>
<option value="480p">480p</option>
<option value="720p" selected >720p</option>
<option value="1080p">1080p</option>
<option value="1440p">1440p</option>
<option value="4k">4k</option>
</select>
</div>
<button id="render" class="btn btn-primary btn-lg">Render</button>
<button id="stop-render" class="btn btn-link d-hide">Stop render</button>
<button id="view-full" class="btn btn-link d-hide">View full image</button>
<pre class="code"><code id="console-demo" class="console"></code></pre>
</div>
</div>
</div>
</div>
<div id="benchmark-mode" class="columns controls d-hide">
<div class="column">
<div class="columns">
<div class="column col-3" style="width: 20%">
<p>You can also use the raytracer to run a CPU and JavaScript performance benchmark.</p>
<p>This will run multiple 1080p renders, with both single and multicore workloads. An overall score will be calculated based on performance, higher is better.</p>
<p>Compare your results to the reference scores from the various devices I've tested.</p>
</div>
<div class="divider-vert"></div>
<div class="column col-6" style="width: 55%">
<div id="benchmark-results-graph" style="width: 100%; height: 500px"></div>
</div>
<div class="column col-3">
<div class="columns">
<div class="column col-12 d-flex" style="justify-content: center; padding-bottom: 15px">
<button id="benchmark" class="btn btn-primary btn-lg">Run benchmark</button>
</div>
</div>
<div class="columns">
<div class="column col-12" >
<div class="h4 text-bold">Score</div>
</div>
</div>
<div class="columns score-col">
<div class="column col-6 text-bold">
<div>Multi-core</div>
<div id="multi-core-score" class="h1 loading-lg">-</div>
</div>
<div class="column col-6 text-bold">
<div>Single core</div>
<div id="single-core-score" class="h1 loading-lg">-</div>
</div>
</div>
<div class="columns">
<div class="column col-12" >
<pre class="code"><code id="console-benchmark" class="console"></code></pre>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<script src="./bundle.js"></script>
</body>
</html>
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