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Rank: Advanced Member
Groups: Member
Joined: 10/4/2016
Posts: 104
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Hi,
I have this team currently experiencing this error when loading their page:
Error: Failed to initialize WebGL
They use MapBox maps to be loaded on WebGL canvas. I have asked them to provide me with a repeatable page, right now their site is not accessible from outside the company.
Any idea for now?
Thanks a lot!
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Rank: Advanced Member
Groups: Member
Joined: 10/4/2016
Posts: 104
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FYI... The team provided me with a small web page where we can reproduce the problem. They are under the impression this must run in Chrome v61
Code: HTML/ASPX
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<title></title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.40.1/mapbox-gl.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.40.1/mapbox-gl.css' rel='stylesheet' />
<style>
body { margin:0; padding:0; }
#map { position:absolute; top:0; bottom:0; width:100%; }
</style>
</head>
<body>
<div id='map'></div>
<script>
mapboxgl.accessToken = 'pk.eyJ1IjoiY3Jpc2thbGVzaCIsImEiOiJjajhsc2g3NnMwc21wMndxaXZ4dmEwNGtjIn0.PiwopeFa1mUOCVIwVhhw4A';
var map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/mapbox/streets-v9',
center: [0, 0],
zoom: 2
});
var radius = 20;
function pointOnCircle(angle) {
return {
"type": "Point",
"coordinates": [
Math.cos(angle) * radius,
Math.sin(angle) * radius
]
};
}
map.on('load', function () {
// Add a source and layer displaying a point which will be animated in a circle.
map.addSource('point', {
"type": "geojson",
"data": pointOnCircle(0)
});
map.addLayer({
"id": "point",
"source": "point",
"type": "circle",
"paint": {
"circle-radius": 10,
"circle-color": "#007cbf"
}
});
function animateMarker(timestamp) {
// Update the data to a new position based on the animation timestamp. The
// divisor in the expression `timestamp / 1000` controls the animation speed.
map.getSource('point').setData(pointOnCircle(timestamp / 1000));
// Request the next frame of the animation.
requestAnimationFrame(animateMarker);
}
// Start the animation.
animateMarker(0);
});
</script>
</body>
</html>
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Rank: Advanced Member
Groups: Member
Joined: 10/4/2016
Posts: 104
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Alright, I found my mistake... All my wrappers were built with the option: EO.WebBrowser.Runtime.DisableGPU = true to prevent an older issue we experienced with PCs connected to multiple monitors. In that case using the default setting: EO.WebBrowser.Runtime.DisableGPU = false, allowed this plugin to run just fine. 
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,225
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Ah..that makes sense. Thanks for the update!
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