1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
<!--
Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Test no attribute vertex shaders</title>
<link rel="stylesheet" href="../../resources/js-test-style.css"/>
<script src="../../js/js-test-pre.js"></script>
<script src="../../js/webgl-test-utils.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script id="vertex-shader" type="x-shader/x-vertex">#version 300 es
void main() {
ivec2 xy = ivec2(
gl_VertexID % 2,
(gl_VertexID / 2 + gl_VertexID / 3) % 2);
gl_Position = vec4(vec2(xy) * 2. - 1., 0, 1);
}
</script>
<script id="fshader" type="x-shader/x-fragment">#version 300 es
precision mediump float;
out vec4 result;
void main() {
result = vec4(0, 1, 0, 1);
}
</script>
<script>
"use strict";
description("Test no attribute shaders work as expected");
var wtu = WebGLTestUtils;
var gl = wtu.create3DContext(undefined, undefined, 2);
function test() {
debug("");
var program = wtu.setupProgram(gl, ["vertex-shader", "fshader"], undefined, undefined, true);
if (!program) {
testFailed('Program compilation failed');
return;
}
gl.drawArrays(gl.TRIANGLES, 0, 6);
wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green", 0);
};
if (!gl) {
testFailed("context does not exist");
} else {
test();
}
var successfullyParsed = true;
finishTest();
</script>
</body>
</html>
|
