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1 <!-- | |
2 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
3 // Use of this source code is governed by a BSD-style license that can be | |
4 // found in the LICENSE file. | |
5 --> | |
6 <!DOCTYPE html> | |
7 <html> | |
8 <head> | |
9 <meta charset="utf-8"> | |
10 <title>WebGL Enable Vertex Attrib Test</title> | |
11 <link rel="stylesheet" href="../../resources/js-test-style.css"/> | |
12 <script src="../../resources/js-test-pre.js"></script> | |
13 <script src="../resources/webgl-test.js"> </script> | |
14 </head> | |
15 <body> | |
16 <canvas id="example" width="50" height="50"> | |
17 </canvas> | |
18 <div id="description"></div> | |
19 <div id="console"></div> | |
20 <script id="vshader" type="x-shader/x-vertex"> | |
21 attribute vec4 vPosition; | |
22 void main() | |
23 { | |
24 gl_Position = vPosition; | |
25 } | |
26 </script> | |
27 | |
28 <script id="fshader" type="x-shader/x-fragment"> | |
29 void main() | |
30 { | |
31 gl_FragColor = vec4(1.0,0.0,0.0,1.0); | |
32 } | |
33 </script> | |
34 | |
35 <script> | |
36 gl = initWebGL("example", "vshader", "fshader", [ "vPosition"], [ 0, 0, 0, 1 ],
1); | |
37 gl.viewport(0, 0, 50, 50); | |
38 | |
39 var vertexObject = gl.createBuffer(); | |
40 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); | |
41 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ 0,0.5,0, -0.5,-0.5,0, 0.5,-0.5
,0 ]), gl.STATIC_DRAW); | |
42 gl.enableVertexAttribArray(0); | |
43 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); | |
44 | |
45 gl.enableVertexAttribArray(3); | |
46 glErrorShouldBe(gl, gl.NO_ERROR); | |
47 | |
48 gl.drawArrays(gl.TRIANGLES, 0, 3); | |
49 glErrorShouldBe(gl, gl.INVALID_OPERATION); | |
50 | |
51 successfullyParsed = true; | |
52 </script> | |
53 <script src="../../resources/js-test-post.js"></script> | |
54 | |
55 </body> | |
56 </html> | |
57 | |
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