Shortest

This JavaScript program demonstrates the shortest possible WebGL program. This program simply clears the canvas and paints it gray.

Shortest.html

<!DOCTYPE html>
<html>
  <head>
    <title>XoaX.net's WebGL</title>
    <script type="text/javascript">
      function render() {
        var qCanvas = document.querySelector("#idWebGL");
        var qGL = qCanvas.getContext("webgl");
        qGL.clearColor(0.85, 0.85, 0.85, 1.0);
        qGL.clear(qGL.COLOR_BUFFER_BIT);
      }
    </script>
  </head>
  <body onload="render()">
    <canvas id="idWebGL" width="400" height="400" style="border:1px black solid;">
    </canvas>
  </body>
</html>

WebGL JavaScript

Shortest

Shortest.html

Output