多视角3D可旋转的HTML5 Logo动画_html5教程技巧

这是一款基于HTML5和CSS3的3D动画特效，与之前的3D特效不同的是，这款是完全用HTML5特性实现的，而并非用多张图片叠加起来。这款3D动画还有一个特点是可以无限的旋转，从而可以从多个视角来观察HTML5 Logo。

在线演示 源码下载

HTML代码

1. <div class="link-overlay">
3. div>
4. <canvas id="canvas" style="background-color:#ddd">canvas>

JavaScript代码

1. // bind to window onload handler
2. window.addEventListener('load', onloadHandler, false);
4. /**
5. * Window onload handler
6. */
7. function onloadHandler()
8. {
9. var canvas = document.getElementById('canvas');
10. canvas.width = window.innerWidth;
11. canvas.height = window.innerHeight;
12. var k3dmain = new K3D.Controller(canvas, true);
14. // generate 3D objects
16. var obj1 = new K3D.K3DObject();
17. with (obj1)
18. {
19. drawmode = "solid";
20. shademode = "lightsource";
21. sortmode = "unsorted";
22. addphi = -0.5;
23. abouty = -90;
24. perslevel = 1000;
25. init(
26. [{x:-80,y:180,z:0},{x:0,y:180,z:-80},{x:0,y:0,z:-80},{x:-80,y:20,z:0},{x:-50,y:150,z:-30},{x:0,y:150,z:-80},{x:0,y:130,z:-80},{x:-30,y:130,z:-50},{x:-28,y:110,z:-52},{x:0,y:110,z:-80},{x:0,y:90,z:-80},{x:-45,y:90,z:-35},{x:-44,y:80,z:-36},{x:-25,y:80,z:-55},{x:-22,y:66,z:-58},{x:0,y:60,z:-80},{x:0,y:40,z:-80},{x:-40,y:50,z:-40}],
27. [],
28. [{color:[227,76,38],vertices:[0,1,2,3,0]},{color:[235,235,235],vertices:[4,5,6,7,8,9,10,11,4]},{color:[235,235,235],vertices:[12,13,14,15,16,17,12]}]
29. );
30. }
31. k3dmain.addK3DObject(obj1);
33. var obj2 = new K3D.K3DObject();
34. with (obj2)
35. {
36. drawmode = "solid";
37. shademode = "lightsource";
38. sortmode = "unsorted";
39. addphi = -0.5;
40. abouty = -90;
41. perslevel = 1000;
42. init(
43. [{x:0,y:180,z:-80},{x:80,y:180,z:0},{x:80,y:20,z:0},{x:0,y:0,z:-80},{x:0,y:165,z:-80},{x:68,y:165,z:-12},{x:55,y:35,z:-25},{x:0,y:20,z:-80},{x:0,y:150,z:-80},{x:50,y:150,z:-30},{x:47,y:130,z:-33},{x:0,y:130,z:-80},{x:0,y:110,z:-80},{x:45,y:110,z:-35},{x:40,y:50,z:-40},{x:0,y:40,z:-80},{x:0,y:60,z:-80},{x:20,y:66,z:-60},{x:23,y:90,z:-57},{x:0,y:90,z:-80}],
44. [],
45. [{color:[227,76,38],vertices:[0,1,2,3,0]},{color:[240,101,41],vertices:[4,5,6,7,4]},{color:[235,235,235],vertices:[8,9,10,11,8]},{color:[235,235,235],vertices:[12,13,14,15,16,17,18,19,12]}]
46. );
47. }
48. k3dmain.addK3DObject(obj2);
50. var obj3 = new K3D.K3DObject();
51. with (obj3)
52. {
53. drawmode = "solid";
54. shademode = "lightsource";
55. sortmode = "unsorted";
56. addphi = -0.5;
57. abouty = -90;
58. perslevel = 1000;
59. init(
60. [{x:80,y:180,z:0},{x:0,y:180,z:80},{x:0,y:0,z:80},{x:80,y:20,z:0},{x:50,y:150,z:30},{x:0,y:150,z:80},{x:0,y:130,z:80},{x:30,y:130,z:50},{x:28,y:110,z:52},{x:0,y:110,z:80},{x:0,y:90,z:80},{x:45,y:90,z:35},{x:44,y:80,z:36},{x:25,y:80,z:55},{x:22,y:66,z:58},{x:0,y:60,z:80},{x:0,y:40,z:80},{x:40,y:50,z:40}],
61. [],
62. [{color:[227,76,38],vertices:[0,1,2,3,0]},{color:[235,235,235],vertices:[4,5,6,7,8,9,10,11,4]},{color:[235,235,235],vertices:[12,13,14,15,16,17,12]}]
63. );
64. }
65. k3dmain.addK3DObject(obj3);
67. var obj4 = new K3D.K3DObject();