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December 15, 2015 09:29
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Pixi.js WebGLRenderer
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<!DOCTYPE html> | |
<html> | |
<meta charset="utf-8"> | |
<style> | |
canvas { | |
border: 1px dashed gray; | |
} | |
#results, #container { | |
display: inline-block; | |
margin: 15px; | |
} | |
p { | |
margin: 15px; | |
} | |
td { | |
border: 1px solid #bbb; | |
} | |
.header { | |
font-weight: bold; | |
} | |
</style> | |
<body> | |
<p id="user-agent"></p> | |
<div id="container"></div> | |
<table id="results"> | |
<tr class="header"> | |
<td>Circles</td> | |
<td>FPS</td> | |
<td>repaint [ms]</td> | |
</tr> | |
</table> | |
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> | |
<script type="text/javascript" src="http://canvg.googlecode.com/svn/trunk/canvg.js"></script> | |
<script src="http://www.goodboydigital.com/pixijs/bunnymark/js/pixi.js"></script> | |
<script> | |
/* global requestAnimationFrame, $, PIXI, canvg */ | |
window.requestAnimationFrame = (function() { | |
return window.requestAnimationFrame || | |
window.webkitRequestAnimationFrame || | |
window.mozRequestAnimationFrame || | |
window.oRequestAnimationFrame || | |
window.msRequestAnimationFrame || | |
function(/* function FrameRequestCallback */ callback, /* DOMElement Element */ element) { | |
return window.setTimeout(callback, 1000/60); | |
}; | |
})(); | |
var tests = [25, 50, 150, 250, 500, 750, 5000]; | |
function updateResults(count, time, steps) { | |
var repaint = time / steps, | |
$tr = $("<tr>"); | |
$tr.append("<td>" + count + "</td><td>" + (1000/repaint).toFixed(2) + "</td><td>" + repaint.toFixed(2) + "</td>"); | |
$("#results").append($tr); | |
} | |
function test() { | |
var count, | |
maxX = 500, | |
maxY = 400, | |
maxSteps = 150, | |
steps = 0, | |
renderer, | |
stage, | |
container, | |
circleCanvas, | |
circleTexture, | |
circles = [], | |
cdata = [], | |
startTime, | |
circle, | |
i; | |
if (tests.length > 0) { | |
$("#container").empty(); | |
count = tests.shift(); | |
} else { | |
return; | |
} | |
renderer = new PIXI.WebGLRenderer(maxX, maxY); | |
$("#container").append(renderer.view); | |
stage = new PIXI.Stage(0xFFFFFF); | |
container = new PIXI.DisplayObjectContainer(); | |
stage.addChild(container); | |
circleCanvas = document.createElement("canvas"); | |
canvg(circleCanvas, "circle.svg"); | |
// workaround: without removing cached textures creating a new texture | |
// will use cached texture from old WebGL context. | |
PIXI.BaseTextureCache = {}; | |
PIXI.TextureCache = {}; | |
circleTexture = new PIXI.Texture.fromCanvas(circleCanvas); | |
for (i = 0; i < count; i++) { | |
circle = { | |
x: maxX * Math.random(), | |
y: maxY * Math.random(), | |
vx: Math.random(), | |
vy: Math.random() | |
}; | |
cdata.push(circle); | |
circle = new PIXI.Sprite(circleTexture); | |
circle.anchor.x = 0.5; | |
circle.anchor.y = 0.5; | |
circles.push(circle); | |
container.addChild(circle); | |
} | |
// Start animation. | |
startTime = new Date().getTime(); | |
requestAnimationFrame(step); | |
function step() { | |
var i, len, c, time; | |
for (i = 0, len = count; i < len; i++) { | |
c = cdata[i]; | |
if (c.x >= maxX || c.x <= 0) c.vx *= -1; | |
if (c.y >= maxY || c.y <= 0) c.vy *= -1; | |
c.x += c.vx; | |
c.y += c.vy; | |
circles[i].position.x = c.x; | |
circles[i].position.y = c.y; | |
} | |
renderer.render(stage); | |
if (steps < maxSteps) { | |
steps++; | |
requestAnimationFrame(step); | |
} else { | |
time = new Date().getTime() - startTime; | |
updateResults(count, time, maxSteps); | |
test(); | |
} | |
} | |
} | |
$(function () { | |
$("#user-agent").text(navigator.userAgent); | |
test(); | |
}); | |
</script> | |
</body> | |
</html> |
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