Initialize WebGL context in OS
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@ -138,13 +138,17 @@
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}
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var actualCanvas = this.rtenv.canvas;
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var context = false;
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var testContext = false;
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var testCanvas;
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try {
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context = actualCanvas.getContext('webgl2') || actualCanvas.getContext('experimental-webgl2');
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testCanvas = document.createElement('canvas');
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testContext = testCanvas.getContext('webgl2') || testCanvas.getContext('experimental-webgl2');
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} catch (e) {}
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if (!context) {
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if (!testContext) {
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throw new Error("WebGL 2 not available");
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}
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testCanvas = null;
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testContext = null;
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// canvas can grab focus on click
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if (actualCanvas.tabIndex < 0) {
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