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- /**
- * @author alteredq / http://alteredqualia.com/
- * @author mr.doob / http://mrdoob.com/
- */
- Detector = {
- canvas : !! window.CanvasRenderingContext2D,
- webgl : !! window.WebGLRenderingContext,
- webglGfxCard : ( function () { try { return !! window.WebGLRenderingContext && !! document.createElement( 'canvas' ).getContext( 'experimental-webgl' ); } catch( e ) { return false; } } )(),
- workers : !! window.Worker,
- fileapi : window.File && window.FileReader && window.FileList && window.Blob,
- getWebGLErrorMessage : function () {
- var html;
- if ( ! this.webgl ) {
- html = [
- 'Sorry, your browser doesn\'t support <a href="http://khronos.org/webgl/wiki/Getting_a_WebGL_Implementation">WebGL</a><br/>',
- 'Please try with',
- '<a href="http://www.google.com/chrome">Chrome 10</a>, ',
- '<a href="http://www.mozilla.com/en-US/firefox/all-beta.html">Firefox 4</a> or',
- '<a href="http://nightly.webkit.org/">Safari 6</a>'
- ].join( '\n' );
- } else if ( ! this.webglGfxCard ) {
- html = [
- 'Sorry, your browser supports <a href="http://khronos.org/webgl/wiki/Getting_a_WebGL_Implementation">WebGL</a><br/> but you may need to upgrade your graphics card.'
- ].join( '\n' );
- }
- var msg = document.createElement( 'div' );
- msg.style.fontFamily = 'monospace';
- msg.style.fontSize = '13px';
- msg.style.textAlign = 'center';
- msg.style.background = '#eee';
- msg.style.color = '#000';
- msg.style.padding = '1em';
- msg.style.width = '475px';
- msg.style.margin = '5em auto 0';
- msg.innerHTML = html;
- return msg;
- },
- addGetWebGLMessage : function ( parameters ) {
- var parent, id, domElement;
- parameters = parameters || {};
- parent = parameters.parent !== undefined ? parameters.parent : document.body;
- id = parameters.id !== undefined ? parameters.id : 'oldie';
- domElement = Detector.getWebGLErrorMessage();
- domElement.id = id;
- parent.appendChild( domElement );
- }
- };
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