[英]Three.js Mesh animation and texture mapping
我进行了一些研究,并学习了如何将obj文件导出到.js文件,该文件可以由Three.js的JSON模型导入。 但是如何为这样的模型制作动画呢? 我有一个.js格式的鸟模型,我需要学习拍打翅膀。 此外,当我从互联网上下载obj文件(因为它是免费模型)时,它还包含对象的纹理图像,但是当我在3d建模软件Blender 3d中导入obj时,它无法加载纹理,但是它的位置恰好在从文本编辑器中打开obj文件时。 当我将其转换为.js格式时,它也具有位于bmp图片上以进行纹理映射的正确位置,但是当我使用JSON模型在webgl中加载模型时无法加载。
任何人都可以从我可以学到的所有思想中指出正确的方向,如果您立即知道并帮助我,那将是非常棒的。 拜托,我需要你们的帮助。
Js模型文件的代码
{
"metadata" :
{
"formatVersion" : 3,
"generatedBy" : "Blender 2.66 Exporter",
"vertices" : 2652,
"faces" : 4798,
"normals" : 2652,
"colors" : 0,
"uvs" : [1202],
"materials" : 4,
"morphTargets" : 0,
"bones" : 0
},
"scale" : 1.000000,
"materials" : [ {
"DbgColor" : 15658734,
"DbgIndex" : 0,
"DbgName" : "_5___Default0",
"blending" : "NormalBlending",
"colorAmbient" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorDiffuse" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorSpecular" : [0.8999999761581421, 0.8999999761581421, 0.8999999761581421],
"depthTest" : true,
"depthWrite" : true,
"mapDiffuse" : "n-201.bmp",
"mapDiffuseWrap" : ["repeat", "repeat"],
"shading" : "Lambert",
"specularCoef" : 2,
"transparency" : 1.0,
"transparent" : false,
"vertexColors" : false
},
{
"DbgColor" : 15597568,
"DbgIndex" : 1,
"DbgName" : "_5___Default1",
"blending" : "NormalBlending",
"colorAmbient" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorDiffuse" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorSpecular" : [0.8999999761581421, 0.8999999761581421, 0.8999999761581421],
"depthTest" : true,
"depthWrite" : true,
"mapDiffuse" : "n-200.bmp",
"mapDiffuseWrap" : ["repeat", "repeat"],
"shading" : "Lambert",
"specularCoef" : 2,
"transparency" : 1.0,
"transparent" : false,
"vertexColors" : false
},
{
"DbgColor" : 60928,
"DbgIndex" : 2,
"DbgName" : "_5___Default2",
"blending" : "NormalBlending",
"colorAmbient" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorDiffuse" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorSpecular" : [0.8999999761581421, 0.8999999761581421, 0.8999999761581421],
"depthTest" : true,
"depthWrite" : true,
"mapDiffuse" : "n-202.bmp",
"mapDiffuseWrap" : ["repeat", "repeat"],
"shading" : "Lambert",
"specularCoef" : 2,
"transparency" : 1.0,
"transparent" : false,
"vertexColors" : false
},
{
"DbgColor" : 238,
"DbgIndex" : 3,
"DbgName" : "_5___Default",
"blending" : "NormalBlending",
"colorAmbient" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorDiffuse" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorSpecular" : [0.8999999761581421, 0.8999999761581421, 0.8999999761581421],
"depthTest" : true,
"depthWrite" : true,
"mapDiffuse" : "n-203.bmp",
"mapDiffuseWrap" : ["repeat", "repeat"],
"shading" : "Lambert",
"specularCoef" : 2,
"transparency" : 1.0,
"transparent" : false,
"vertexColors" : false
},
{
"DbgColor" : 15658496,
"DbgIndex" : 4,
"DbgName" : "_5___Default0",
"blending" : "NormalBlending",
"colorAmbient" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorDiffuse" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorSpecular" : [0.8999999761581421, 0.8999999761581421, 0.8999999761581421],
"depthTest" : true,
"depthWrite" : true,
"mapDiffuse" : "n-201.bmp",
"mapDiffuseWrap" : ["repeat", "repeat"],
"shading" : "Lambert",
"specularCoef" : 2,
"transparency" : 1.0,
"transparent" : false,
"vertexColors" : false
},
{
"DbgColor" : 61166,
"DbgIndex" : 5,
"DbgName" : "_5___Default1",
"blending" : "NormalBlending",
"colorAmbient" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorDiffuse" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorSpecular" : [0.8999999761581421, 0.8999999761581421, 0.8999999761581421],
"depthTest" : true,
"depthWrite" : true,
"mapDiffuse" : "n-200.bmp",
"mapDiffuseWrap" : ["repeat", "repeat"],
"shading" : "Lambert",
"specularCoef" : 2,
"transparency" : 1.0,
"transparent" : false,
"vertexColors" : false
},
{
"DbgColor" : 15597806,
"DbgIndex" : 6,
"DbgName" : "_5___Default2",
"blending" : "NormalBlending",
"colorAmbient" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorDiffuse" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorSpecular" : [0.8999999761581421, 0.8999999761581421, 0.8999999761581421],
"depthTest" : true,
"depthWrite" : true,
"mapDiffuse" : "n-202.bmp",
"mapDiffuseWrap" : ["repeat", "repeat"],
"shading" : "Lambert",
"specularCoef" : 2,
"transparency" : 1.0,
"transparent" : false,
"vertexColors" : false
},
{
"DbgColor" : 419610,
"DbgIndex" : 7,
"DbgName" : "_5___Default",
"blending" : "NormalBlending",
"colorAmbient" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorDiffuse" : [0.800000011920929, 0.800000011920929, 0.800000011920929],
"colorSpecular" : [0.8999999761581421, 0.8999999761581421, 0.8999999761581421],
"depthTest" : true,
"depthWrite" : true,
"mapDiffuse" : "n-203.bmp",
"mapDiffuseWrap" : ["repeat", "repeat"],
"shading" : "Lambert",
"specularCoef" : 2,
"transparency" : 1.0,
"transparent" : false,
"vertexColors" : false
}],
在这里看看
http://threejs.org/examples/webgl_morphnormals.html http://threejs.org/examples/webgl_morphtargets_horse.html
在第一个示例中,请看第90行
var loader = new THREE.JSONLoader();
loader.load( "models/animated/flamingo.js", function( geometry ) {
morphColorsToFaceColors( geometry );
geometry.computeMorphNormals();
var material = new THREE.MeshLambertMaterial( { color: 0xffffff, morphTargets: true, morphNormals: true, vertexColors: THREE.FaceColors, shading: THREE.FlatShading } );
var meshAnim = new THREE.MorphAnimMesh( geometry, material );
meshAnim.duration = 5000;
meshAnim.scale.set( 1.5, 1.5, 1.5 );
meshAnim.position.y = 150;
scene1.add( meshAnim );
morphs.push( meshAnim );
} );
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