<!DOCTYPE html >
<meta charset='UTF-8' >
<!--
Color Test
Clear the four quadrants of the canvas as follows :
+ - - - - - - + - - - - - - +
| blue | black |
| | |
+ - - - - - - + - - - - - - +
| red | green |
| | |
+ - - - - - - + - - - - - - +
Clear with a given alpha value . What effect this has depends on the
context - creation args passed to this page .
-->
<html class='reftest-wait' >
<head >
<script type='text/javascript' src='webgl-utils.js' ></script >
<script type='text/javascript' >
'use strict' ;
var COLOR_VALUE = 127 .0 / 255 .0 ;
var ALPHA_VALUE = 127 .0 / 255 .0 ;
function renderFrame(gl) {
gl.enable(gl.SCISSOR_TEST);
gl.scissor(0 , 0 , 100 , 100 );
gl.clearColor(COLOR_VALUE, 0 .0 , 0 .0 , ALPHA_VALUE);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.scissor(100 , 0 , 100 , 100 );
gl.clearColor(0 .0 , COLOR_VALUE, 0 .0 , ALPHA_VALUE);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.scissor(0 , 100 , 100 , 100 );
gl.clearColor(0 .0 , 0 .0 , COLOR_VALUE, ALPHA_VALUE);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.scissor(100 , 100 , 100 , 100 );
gl.clearColor(0 .0 , 0 .0 , 0 .0 , ALPHA_VALUE);
gl.clear(gl.COLOR_BUFFER_BIT);
}
////////////////////////////////////////////////////////////////////////////////
// Boilerplate
var TIMEOUT_MS = 30 * 1000 ;
function setStatus(text) {
var elem = document.getElementById('status' );
elem.innerHTML = text;
}
var gIsComplete = false;
function markComplete(statusText) {
if (!statusText)
statusText = '' ;
if (gIsComplete)
return;
gIsComplete = true;
setStatus(statusText);
document.documentElement.removeAttribute('class' );
}
function markError(text) {
markComplete('Error: ' + text);
}
function markTimedOut() {
markError('Timed out waiting on test completion.' );
}
function runFrame(gl, frameCount, maxFrameCount) {
renderFrame(gl);
frameCount++;
if (frameCount >= maxFrameCount) {
console.log('Rendered ' + frameCount + ' frames.' );
markComplete();
return;
}
requestAnimationFrame(function(){
runFrame(gl, frameCount, maxFrameCount);
});
}
function runTest() {
var canvas = document.getElementById('canvas' );
var gl = initGL(canvas );
if (!gl) {
markError('WebGL context creation failed.' );
return;
}
var maxFrameCount = arg('frame' , 1 );
if (maxFrameCount < 1 ) {
markError('Invalid `frame` arg: ' + maxFrameCount);
return;
}
setStatus('Waiting...' );
runFrame(gl, 0 , maxFrameCount);
setTimeout(markTimedOut, TIMEOUT_MS);
}
</script >
</head >
<body onload='runTest();' >
<canvas style ="position:fixed; left: 0px; top: 0px;" id='canvas' width='200' height='200' ></canvas >
<div style ="display:block; background-color: blue; position: fixed; top: 75px; left: 0px; width: 50px; height: 50px;" ></div >
<div id='status' ></div >
</body >
</html >
Messung V0.5 in Prozent C=100 H=100 G=100
¤ Dauer der Verarbeitung: 0.19 Sekunden
(vorverarbeitet am 2026-06-10)
¤
*© Formatika GbR, Deutschland