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Im trying to use WEBGL_shared_resources Extension in chrome 58.
I checked if it supported with this code and I get error so its not. 

<canvas id="myCanvas1" width = "1250" height = "600"></canvas>

    var Canvas1 = document.getElementById('myCanvas1');
    ctx1 = Canvas1.getContext("webgl");
    if(ctx1.getExtension("WEBGL_shared_resources") == null)
       throw "Shared resources are not supported";

My question is how do I add this extension?
Is that depend on browser version? OS? gpu?

yoram
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1 Answers1

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WEBGL_shared_resources extension is just a draft and has never been implemented in any browser.

If you're looking for a way make it appear as though you have multiple canvases sharing resources see this q&a:

Multiple WebGL models on the same page

Community
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gman
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