如何制作多视角3D可旋转的HTML5Logo动画

这期内容当中小编将会给大家带来有关如何制作多视角3D可旋转的HTML5Logo动画，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

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。

XML/HTML Code复制内容到剪贴板

JavaScript代码

JavaScript Code复制内容到剪贴板

1. // bind to window onload handler   window.addEventListener('load', onloadHandler, false);     /**   * Window onload handler   */  function onloadHandler()   {      var canvas = document.getElementById('canvas');      canvas.width = window.innerWidth;      canvas.height = window.innerHeight;      var k3dmain = new K3D.Controller(canvas, true);        // generate 3D objects        var obj1 = new K3D.K3DObject();      with (obj1)      {         drawmode = "solid";         shademode = "lightsource";         sortmode = "unsorted";         addphi = -0.5;         abouty = -90;         perslevel = 1000;         init(            [{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}],            [],            [{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]}]         );      }      k3dmain.addK3DObject(obj1);        var obj2 = new K3D.K3DObject();      with (obj2)      {         drawmode = "solid";         shademode = "lightsource";         sortmode = "unsorted";         addphi = -0.5;         abouty = -90;         perslevel = 1000;         init(            [{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}],            [],            [{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]}]         );      }      k3dmain.addK3DObject(obj2);        var obj3 = new K3D.K3DObject();      with (obj3)      {         drawmode = "solid";         shademode = "lightsource";         sortmode = "unsorted";         addphi = -0.5;         abouty = -90;         perslevel = 1000;         init(            [{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}],            [],            [{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]}]         );      }      k3dmain.addK3DObject(obj3);        var obj4 = new K3D.K3DObject();      with (obj4)      {         drawmode = "solid";         shademode = "lightsource";         sortmode = "unsorted";         addphi = -0.5;         abouty = -90;         perslevel = 1000;         init(            [{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}],            [],            [{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]}]         );      }      k3dmain.addK3DObject(obj4);        var objBase = new K3D.K3DObject();      with (objBase)      {         drawmode = "solid";         shademode = "lightsource";         sortmode = "unsorted";         addphi = -0.5;         abouty = -90;         perslevel = 1000;         init(            [{x:0,y:0,z:-80},{x:-80,y:20,z:0},{x:0,y:0,z:80},{x:80,y:20,z:0}],            [],            [{color:[227,76,38],vertices:[0,2,1,0]},{color:[227,76,38],vertices:[0,3,2,0]}]         );      }      k3dmain.addK3DObject(objBase);        var objHtml = new K3D.K3DObject();      with (objHtml)      {         drawmode = "solid";         shademode = "lightsource";         //sortmode = "unsorted";         color = [64,64,64];         doublesided = true;         addphi = -0.5;         abouty = 100;         scale = 0.75;         perslevel = 1000;         init(            [{x:-80,y:40,z:0},{x:-70,y:40,z:0},{x:-70,y:30,z:0},{x:-60,y:30,z:0},{x:-60,y:40,z:0},{x:-50,y:40,z:0},{x:-50,y:10,z:0},{x:-60,y:10,z:0},{x:-60,y:20,z:0},{x:-70,y:20,z:0},{x:-70,y:10,z:0},{x:-80,y:10,z:0},{x:-40,y:40,z:0},{x:-10,y:40,z:0},{x:-10,y:30,z:0},{x:-20,y:30,z:0},{x:-20,y:10,z:0},{x:-30,y:10,z:0},{x:-30,y:30,z:0},{x:-40,y:30,z:0},{x:0,y:40,z:0},{x:10,y:40,z:0},{x:20,y:30,z:0},{x:30,y:40,z:0},{x:40,y:40,z:0},{x:40,y:10,z:0},{x:30,y:10,z:0},{x:30,y:30,z:0},{x:20,y:20,z:0},{x:10,y:30,z:0},{x:10,y:10,z:0},{x:0,y:10,z:0},{x:50,y:40,z:0},{x:60,y:40,z:0},{x:60,y:20,z:0},{x:80,y:20,z:0},{x:80,y:10,z:0},{x:50,y:10,z:0}],            [],            [{vertices:[0,1,2,3,4,5,6,7,8,9,10,11,0]},{vertices:[12,13,14,15,16,17,18,19,12]},{vertices:[20,21,22,23,24,25,26,27,28,29,30,31,20]},{vertices:[32,33,34,35,36,37,32]}]         );      }      k3dmain.addK3DObject(objHtml);        // add render loop callback      var ctx = canvas.getContext('2d');      var rotationOffset = 0;      var len = (canvas.height > canvas.width ? canvas.height : canvas.width) * 0.7;      k3dmain.clearBackground = false;      k3dmain.callback = function()      {         // manually clear bg - as we want to render some extra goodies         ctx.clearRect(0, 0, canvas.width, canvas.height);           // draw bg effect before K3D does its 3D rendering         ctx.save();         ctx.translate(canvas.width/2, canvas.height/2);         ctx.rotate(rotationOffset);           // first fill pass - outer rays         var RAYCOUNT = 24;         ctx.fillStyle = "#eee";         ctx.beginPath();         for (var i=0; i -0.5) targetRotationX -= 0.05;         else if (targetRotationX < -0.55) targetRotationX += 0.05;         if (targetRotationX > -0.55 && targetRotationX < -0.5) targetRotationX = -0.5;      };        // start demo loop      k3dmain.paused = true;      setInterval(function(){k3dmain.tick()}, 1000/60);   }     // nifty drag/touch event capture code borrowed from Mr Doob http://mrdoob.com/   var targetRotationX = 0;   var targetRotationOnMouseDownX = 0;   var mouseX = 0;   var mouseXOnMouseDown = 0;   var targetRotationY = 0;   var targetRotationOnMouseDownY = 0;   var mouseY = 0;   var mouseYOnMouseDown = 0;     var windowHalfX = window.innerWidth / 2;   var windowHalfY = window.innerHeight / 2;     document.addEventListener('mousedown', onDocumentMouseDown, false);   document.addEventListener('touchstart', onDocumentTouchStart, false);   document.addEventListener('touchmove', onDocumentTouchMove, false);     function onDocumentMouseDown( event ) {      event.preventDefault();      document.addEventListener('mousemove', onDocumentMouseMove, false);    document.addEventListener('mouseup', onDocumentMouseUp, false);    document.addEventListener('mouseout', onDocumentMouseOut, false);      mouseXOnMouseDown = event.clientX - windowHalfX;    targetRotationOnMouseDownX = targetRotationX;    mouseYOnMouseDown = event.clientY - windowHalfY;    targetRotationOnMouseDownY = targetRotationY;   }     function onDocumentMouseMove( event )   {    mouseX = event.clientX - windowHalfX;    targetRotationX = targetRotationOnMouseDownX + (mouseX - mouseXOnMouseDown) * 0.02;    mouseY = event.clientY - windowHalfY;    targetRotationY = targetRotationOnMouseDownY + (mouseY - mouseYOnMouseDown) * 0.02;   }     function onDocumentMouseUp( event )   {    document.removeEventListener('mousemove', onDocumentMouseMove, false);    document.removeEventListener('mouseup', onDocumentMouseUp, false);    document.removeEventListener('mouseout', onDocumentMouseOut, false);   }     function onDocumentMouseOut( event )   {    document.removeEventListener('mousemove', onDocumentMouseMove, false);    document.removeEventListener('mouseup', onDocumentMouseUp, false);    document.removeEventListener('mouseout', onDocumentMouseOut, false);   }     function onDocumentTouchStart( event )   {    if (event.touches.length == 1)    {     event.preventDefault();       mouseXOnMouseDown = event.touches[0].pageX - windowHalfX;     targetRotationOnMouseDownX = targetRotationX;     mouseYOnMouseDown = event.touches[0].pageY - windowHalfY;     targetRotationOnMouseDownY = targetRotationY;    }   }     function onDocumentTouchMove( event )   {    if (event.touches.length == 1)    {     event.preventDefault();       mouseX = event.touches[0].pageX - windowHalfX;     targetRotationX = targetRotationOnMouseDownX + (mouseX - mouseXOnMouseDown) * 0.05;     mouseY = event.touches[0].pageY - windowHalfY;     targetRotationY = targetRotationOnMouseDownY + (mouseX - mouseYOnMouseDown) * 0.05;    }   }

上述就是小编为大家分享的如何制作多视角3D可旋转的HTML5Logo动画了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注行业资讯频道。