webgl-clear-test.html (791B)
1 <!DOCTYPE html> 2 <meta charset='UTF-8'> 3 <!-- 4 Clear the canvas to green to test that we get pixels to the screen. 5 6 If this fails, something is seriously wrong. 7 --> 8 <html> 9 10 <head> 11 <script type='text/javascript' src='webgl-utils.js'></script> 12 <script type='text/javascript'> 13 'use strict'; 14 15 function setStatus(text) { 16 var elem = document.getElementById('status'); 17 elem.innerHTML = text; 18 } 19 20 function runTest() { 21 var canvas = document.getElementById('canvas'); 22 23 var gl = initGL(canvas); 24 if (!gl) { 25 setStatus('WebGL context creation failed.'); 26 return; 27 } 28 29 gl.clearColor(0.0, 1.0, 0.0, 1.0); 30 gl.clear(gl.COLOR_BUFFER_BIT); 31 } 32 </script> 33 </head> 34 35 <body onload='runTest();'> 36 <canvas id='canvas' width='256' height='256'></canvas> 37 <div id='status'></div> 38 </body> 39 40 </html>