More accurate WebGL support test, see issue #31

2012-09-28 20:05:01 +02:00
parent dcc3fdde96
commit 2713addb33
1 changed files with 5 additions and 1 deletions
--- a/src/ol/renderer/webgl/webgl.js
+++ b/src/ol/renderer/webgl/webgl.js
@@ -11,5 +11,9 @@ ol.renderer.webgl.FREE_RESOURCES_IMMEDIATELY = false;
 * @return {boolean} Is supported.
 */
 ol.renderer.webgl.isSupported = function() {
-  return 'WebGLRenderingContext' in goog.global;
+  if (!('WebGLRenderingContext' in goog.global)) {
+    return false;
+  }
+  var canvas = goog.dom.createElement(goog.dom.TagName.CANVAS);
+  return !goog.isNull(canvas.getContext('experimental-webgl'));
 };