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Issue 9360034: Remove everthing except conformance tests in the deps/third_party/webgl (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/
Patch Set: Created 8 years, 10 months ago
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1 tdl.require('tdl.buffers');
2 tdl.require('tdl.fast');
3 tdl.require('tdl.log');
4 tdl.require('tdl.math');
5 tdl.require('tdl.models');
6 tdl.require('tdl.primitives');
7 tdl.require('tdl.programs');
8 tdl.require('tdl.textures');
9 tdl.require('tdl.webgl');
10
11 function setupLogo() {
12 var program = tdl.programs.loadProgramFromScriptTags(
13 'modelVertexShader',
14 'modelFragmentShader');
15 var arrays = {
16 position: new tdl.primitives.AttribBuffer(
17 3, [
18 -1, -1, -1,
19 1, -1, -1,
20 1, 1, -1,
21 -1, 1, -1,
22 -1, -1, 1,
23 1, -1, 1,
24 1, 1, 1,
25 -1, 1, 1
26 ]),
27 indices: new tdl.primitives.AttribBuffer(2, [
28 0, 1, 1, 2, 2, 3, 3, 0,
29 4, 5, 5, 6, 6, 7, 7, 4,
30 0, 4, 1, 5, 2, 6, 3, 7
31 ], 'Uint16Array')
32 };
33 return new tdl.models.Model(program, arrays, {}, gl.LINES);
34 };
35
36 var g_eyeSpeed = 1;
37 var g_eyeHeight = 4.5;
38 var g_eyeRadius = 5;
39 var g_fov = 30;
40 var g_trans = [0,0,0];
41
42 function initializeLogo(canvas) {
43 var math = tdl.math;
44 var fast = tdl.fast;
45 var model = setupLogo();
46
47 var clock = 0.0;
48
49 // pre-allocate a bunch of arrays
50 var projection = new Float32Array(16);
51 var view = new Float32Array(16);
52 var world = new Float32Array(16);
53 var worldInverse = new Float32Array(16);
54 var worldInverseTranspose = new Float32Array(16);
55 var viewProjection = new Float32Array(16);
56 var worldViewProjection = new Float32Array(16);
57 var eyePosition = new Float32Array(3);
58 var target = new Float32Array(3);
59 var up = new Float32Array([0,1,0]);
60 var v3t0 = new Float32Array(3);
61 var v3t1 = new Float32Array(3);
62 var v3t2 = new Float32Array(3);
63 var v3t3 = new Float32Array(3);
64 var m4t0 = new Float32Array(16);
65 var m4t1 = new Float32Array(16);
66 var m4t2 = new Float32Array(16);
67 var m4t3 = new Float32Array(16);
68 var zero4 = new Float32Array(4);
69 var one4 = new Float32Array([1,1,1,1]);
70
71 // uniforms.
72 var modelConst = {
73 };
74 var modelPer = {
75 worldViewProjection: worldViewProjection
76 };
77
78 var then = (new Date()).getTime() * 0.001;
79 function render() {
80 tdl.webgl.requestAnimationFrame(render, canvas);
81 var now = (new Date()).getTime() * 0.001;
82 var elapsedTime = now - then;
83 then = now;
84
85 clock += elapsedTime;
86 eyePosition[0] = Math.sin(clock * g_eyeSpeed) * g_eyeRadius;
87 eyePosition[1] = g_eyeHeight;
88 eyePosition[2] = Math.cos(clock * g_eyeSpeed) * g_eyeRadius;
89
90 gl.colorMask(true, true, true, true);
91 gl.depthMask(true);
92 gl.clearColor(0,0,0,0);
93 gl.clearDepth(1);
94 gl.lineWidth(2);
95 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_BIT);
96
97 gl.enable(gl.CULL_FACE);
98 gl.enable(gl.DEPTH_TEST);
99 //gl.enable(gl.BLEND);
100 //gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA);
101
102 fast.matrix4.perspective(
103 projection,
104 math.degToRad(g_fov),
105 canvas.clientWidth / canvas.clientHeight,
106 1,
107 5000);
108 fast.matrix4.lookAt(
109 view,
110 eyePosition,
111 target,
112 up);
113 fast.matrix4.mul(viewProjection, view, projection);
114
115 model.drawPrep(modelConst);
116 fast.matrix4.translation(world, g_trans);
117 fast.matrix4.mul(worldViewProjection, world, viewProjection);
118 model.draw(modelPer);
119 }
120 render();
121 }
122
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