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| 1 <!DOCTYPE HTML> |
| 2 <html> |
| 3 <head> |
| 4 <meta charset="utf-8"> |
| 5 <script type="text/javascript"> |
| 6 |
| 7 window.onload = function() { |
| 8 setup("1"); |
| 9 setup("2"); |
| 10 } |
| 11 |
| 12 function setup(id) { |
| 13 var c = document.getElementById(id); |
| 14 var gl = c.getContext("experimental-webgl"); |
| 15 gl.clearColor(1,0,0,1); |
| 16 gl.clear(gl.COLOR_BUFFER_BIT); |
| 17 setTimeout(function() { |
| 18 gl.enable(gl.SCISSOR_TEST); |
| 19 gl.scissor(0,0,50,50); |
| 20 gl.clearColor(0,1,0,1); |
| 21 gl.clear(gl.COLOR_BUFFER_BIT); |
| 22 }, 500); |
| 23 } |
| 24 </script> |
| 25 </head> |
| 26 <body> |
| 27 <canvas id="1"></canvas> |
| 28 <div style="height:4000px;">content that is tall like several articles</div> |
| 29 <canvas id="2"></canvas> |
| 30 </body> |
| 31 </html> |
| 32 |
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