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Babylon.js 使用JSON文件格式来描述场景.
你可以在这儿找到完整的加载器代码:
https://github.com/BabylonJS/Babylon.js/blob/master/src/Loading/Plugins/babylon.babylonFileLoader.js
.babylon 文件使用下面的约定来定义基础类型:
.babylon文件里的全局结构体是下面这样的:
{
"autoClear": boolean,
"clearColor": color3,
"ambientColor": color3,
"gravity": vector3 (通常是[0,-9,0]),
"cameras": 相机数组 (见下面),
"activeCamera_": string,
"lights": 光源数组(见下面),
"materials": 材质数组 (见下面),
"geometries": {...} (见下面),
"meshes": 网格数组 (见下面),
"multiMaterials": 多材质数组(见下面),
"shadowGenerators": 阴影生成器数组 (见下面),
"skeletons": 骨架数组 (见下面),
"particleSystems": 例子系统弄个数组 (见下面),
"lensFlareSystems": 镜头光晕数组 (见下面),
"actions": 动作数组 (见下面),
"sounds": 音效数组 (见下面),
"workerCollisions": boolean,
"collisionsEnabled": boolean,
"physicsEnabled": boolean,
"physicsGravity": vector3 (默认是[0,-9.81,0]),
"physicsEngine": string ("oimo" 或 "cannon", 引擎默认为(oimo),
"animations": 动画数组 (见下面，可以省略),
"autoAnimate": boolean,
"autoAnimateFrom": int,
"autoAnimateTo": int,
"autoAnimateLoop": boolean (可以省略),
"autoAnimateSpeed": number (可以省略)
}一个相机通过如下JSON格式定义:
{
"name": string,
"id": string,
"type": string,
"tags": string,
"parentId": string,
"lockedTargetId": string,
"position": vector3,
"target": vector3,
"alpha": float, // 仅仅支持ArcRotateCamera 和 AnaglyphArcRotateCamera
"beta": float, // 仅仅支持 ArcRotateCamera 和 AnaglyphArcRotateCamera
"radius": float, // 仅仅支持 ArcRotateCamera, FollowCamera 和 AnaglyphArcRotateCamera
"eye_space": float, // 仅仅支持 AnaglyphFreeCamera 和 AnaglyphArcRotateCamera
"heightOffset": float, // 仅仅支持 FollowCamera
"rotationOffset": float, // 仅仅支持 FollowCamera
"cameraRigMode": int (可以忽略),
"fov": float (弧度单位),
"minZ": float,
"maxZ": float,
"speed": float,
"inertia": float (在0和1间),
"checkCollisions": boolean,
"applyGravity": boolean,
"ellipsoid": vector3,
"animations": Animations数组 (见下面，可以忽略),
"autoAnimate": boolean,
"autoAnimateFrom": int,
"autoAnimateTo": int,
"autoAnimateLoop": boolean (可以忽略),
"autoAnimateSpeed": number (可以忽略),
"inputmgr" : 相机的输入映射(可以忽略, 见下面)
}这是个对象，它字面上用输入类型作为键，同时用输入设定作为存储值对象。每个输入类型都有其自身的属性.
光源通过如下的JSON格式定义:
{
"name": string,
"id": string,
"tags": string,
"type": int (0表示点光，1表示方向光, 2表示聚光，3表示球面光),
"position": vector3,
"direction": vector3,
"angle": float (用于点光源),
"exponent": float (用于点光源),
"groundColor": color3 (用于球面光光源),
"intensity": float,
"range": float,
"diffuse": color3,
"specular": color3,
"excludedMeshesIds": array of string,
"includedOnlyMeshesIds": array of string,
"animations": array of Animations (见下面，可以忽略),
"autoAnimate": boolean,
"autoAnimateFrom": int,
"autoAnimateTo": int,
"autoAnimateLoop": boolean (可以忽略),
"autoAnimateSpeed": number (可以忽略)
}一个材质通过如下JSON格式定义:
{
"name": string,
"id": string,
"tags": string,
"disableDepthWrite": boolean (可以忽略),
"ambient": color3,
"diffuse": color3,
"specular": color3,
"specularPower": float,
"emissive": color3,
"alpha": float,
"backFaceCulling": boolean,
"wireframe": boolean,
"diffuseTexture": Texture (见下面),
"ambientTexture": Texture (见下面),
"opacityTexture": Texture (见下面,
"reflectionTexture": Texture (见下面),
"refractionTexture": Texture (见下面),
"indexOfRefraction": float,
"emissiveTexture": Texture (见下面),
"specularTexture": Texture (见下面),
"bumpTexture": Texture (见下面),
"lightmapTexture": Texture (见下面),
"useLightmapAsShadowmap": boolean,
"checkReadyOnlyOnce": boolean
"useReflectionFresnelFromSpecular": boolean (可以忽略),
"useEmissiveAsIllumination": boolean (可以忽略),
"diffuseFresnelParameters": 菲涅耳参数 (见下面),
"opacityFresnelParameters": 菲涅耳参数 (见下面),
"reflectionFresnelParameters": 菲涅耳参数 (见下面),
"refractionFresnelParameters": 菲涅耳参数 (见下面),
"emissiveFresnelParameters": 菲涅耳参数 (见下面)
}菲涅耳参数通过如下的JSON格式定义:
{
"isEnabled": boolean,
"leftColor": color3,
"rightColor": color3,
"bias": float,
"power": float
}纹理通过如下的JSON个格式定义:
{
"name": string (文件名),
"level": float (在0和1间),
"hasAlpha": boolean,
"getAlphaFromRGB": boolean,
"coordinatesMode": int (0 = 显式, 1 = 球, 2 = 平面, 3 = 立方, 4 = 投影, 5 = 天空盒),
"uOffset": float,
"vOffset": float,
"uScale": float,
"vScale": float,
"uAng": float,
"vAng": float,
"wAng": float,
"wrapU": boolean,
"wrapV": boolean,
"coordinatesIndex": int,
"animations": array of Animations (见下面，可以忽略),
"base64String": string (可以忽略)
}多纹理通过如下JSON格式定义:
{
"name": string,
"id": string,
"tags": string,
"materials": string数组 (都是子纹理的ID)
}几何体的结构如下:
{
"boxes": array of Boxes (见下面),
"spheres": array of Spheres (见下面),
"cylinders": array of Cylinders (见下面),
"toruses": array of Toruses (见下面),
"grounds": array of Grounds (见下面),
"planes": array of Planes (见下面),
"torusKnots": array of TorusKnots (见下面),
"vertexData": array of VertexData (见下面)
}盒子通过如下的JSON格式定义:
{
"id": string,
"size": float,
"canBeRegenerated": bool,
"tags": string
}球体通过如下的JSON格式定义:
{
"id": string,
"segments": float,
"diameter": float,
"canBeRegenerated": bool,
"tags": string
}圆柱体通过如下的JSON格式定义:
{
"id": string,
"height": float,
"diameterTop": float,
"diameterBottom": float,
"tessellation": float,
"subdivisions": integer,
"canBeRegenerated": bool,
"tags": string
}环型体通过如下的JSON定义:
{
"id": string,
"diameter": float,
"thickness": float,
"tessellation": float,
"canBeRegenerated": bool,
"tags": string
}地面通过如下的JSON格式定义:
{
"id": string,
"width": float,
"height": float,
"subdivisions": float,
"canBeRegenerated": bool,
"tags": string
}平面通过如下的JSON格式定义:
{
"id": string,
"size": float,
"canBeRegenerated": bool,
"tags": string
}环形节通过如下的JSON格式定义:
{
"id": string,
"radius": float,
"tube": float,
"radialSegments": float,
"tubularSegments": float,
"p": float,
"q": float,
"canBeRegenerated": bool,
"tags": string
}顶点数据通过如下的JSON格式定义:
{
"id": string,
"updatable": bool,
"positions": array of floats (每顶点3个数值),
"normals": array of floats (每顶点3个数值),
"uvs": array of floats (每顶点2个数值),
"uv2s": array of floats (每顶点2个数值) 第2个纹理坐标 (可以忽略),
"uv3s": array of floats (每顶点2个数值) 第3个纹理坐标 (可以忽略),
"uv4s": array of floats (每顶点2个数值) 第4个纹理坐标 (可以忽略),
"uv5s": array of floats (每顶点2个数值) 第5个纹理坐标 (可以忽略),
"uv6s": array of floats (每顶点2个数值) 第6个纹理坐标 (可以忽略),
"colors": array of floats (每顶点3个数值)每个顶点的颜色 (可以忽略),
"matricesIndices": array of ints (每顶点4个数值) 骨骼数据在矩阵数组里的索引 (可以忽略),
"matricesWeights": array of floats (每顶点4个数值) 骨骼数据在矩阵数组里的权重 (可以忽略),
"indices": array of ints (每面点3个数值),
"tags": string
}实例通过如下的JSON格式定义:
{
"name": string,
"tags": string,
"position": vector3,
"rotation": vector3 (可以忽略),
"rotationQuaternion": vector4 (可以忽略),
"scaling": vector3
}网格通过如下的JSON格式定义:
{
"name": string,
"id": string,
"tags": string,
"parentId": string,
"materialId": string,
"geometryId": string (可以忽略),
"position": vector3,
"rotation": vector3 (可以忽略),
"rotationQuaternion": vector4 (可以忽略),
"scaling": vector3,
"pivotMatrix": matrix,
"freezeWorldMatrix": boolean (可以忽略),
"infiniteDistance": boolean,
"showBoundingBox": boolean,
"showSubMeshesBoundingBox": boolean,
"isVisible": boolean,
"isEnabled": boolean,
"pickable": boolean,
"applyFog": boolean,
"alphaIndex": int,
"checkCollisions": boolean,
"billboardMode": int (0 = None, 1 = X, 2 = Y, 4 = Z, 7 = All),
"receiveShadows": boolean,
"physicsImpostor": int (0 = None, 1 = Box, 2 = Sphere),
"physicsMass": float,
"physicsFriction": float,
"physicsRestitution": float,
"positions": array of floats (每顶点3个数值),
"normals": array of floats (每顶点3个数值),
"uvs": array of floats (每顶点2个数值),
"uvs2": array of floats (每顶点2个数值) 第2个纹理坐标(可以忽略),
"uv3s": array of floats (每顶点2个数值) 第3个纹理坐标 (可以忽略),
"uv4s": array of floats (每顶点2个数值) 第5个纹理坐标 (可以忽略),
"uv5s": array of floats (每顶点2个数值) 第6个纹理坐标 (可以忽略),
"uv6s": array of floats (每顶点2个数值) 第7个纹理坐标 (可以忽略),
"colors": array of floats (每顶点4个数值) 每个顶点的颜色 (可以忽略),
"hasVertexAlpha": 指明颜色是否包含透明信息的值(可以忽略),
"matricesIndices": array of ints (每顶点4个数值) 骨骼数据在矩阵数组里的索引 (可以忽略),
"matricesWeights": array of floats (每顶点4个数值) 骨骼数据在矩阵数组里的权重 (可以忽略),
"indices": array of ints (每面3个数值,
"subMeshes": array of SubMeshes (见下面),
"animations": array of Animations (见下面, 可以忽略),
"autoAnimate": boolean,
"autoAnimateFrom": int,
"autoAnimateTo": int,
"autoAnimateLoop": boolean,
"autoAnimateSpeed": number (可以忽略)
"instances": array of Instances (见下面, 可以忽略),
"actions": array of actions (见下面)
}请注意，父网格的描述必须在其子节点出现之前。
子网格通过如下的JSON格式定义:
{
"materialIndex": int,
"verticesStart": int,
"verticesCount": int,
"indexStart": int,
"indexCount": int
}动画通过如下的JSON格式定义:
{
"dataType": int (0 = 浮点, 1 = 3元量, 2 = 4元量, 3 = 矩阵),
"framePerSecond": int,
"loopBehavior": int (0 = 相对, 1 = 周期, 2 = 常量),
"name": string,
"property": string,
"keys": array of AnimationKeys (见下面),
"autoAnimate": boolean,
"autoAnimateFrom": int,
"autoAnimateTo": int,
"autoAnimateLoop": boolean
}动画关键帧通过如下的JSON格式定义:
{
"frame": int,
"values": array of float (取决于播放的值)
}阴影生成器通过如下的JSON格式定义:
{
"useBlurVarianceShadowMap": boolean,
"useVarianceShadowMap": boolean,
"usePoissonSampling": boolean,
"mapSize": int (在64和2048之间, 必须是2的幂),
"bias": float,
"forceBackFacesOnly": float,
"lightId": string,
"renderList": array of string (网格的ID)
}骨架通过如下的JSON格式定义:
{
"name": string,
"id": string,
"bones": array of Bones (见下面)
"needInitialSkinMatrix": boolean
}骨骼通过如下的JSON格式定义:
{
"parentBoneIndex": int,
"name": string,
"matrix": matrix,
"animations": array of Animations (必须是个矩阵类型)
}粒子系统通过如下的JSON格式定义:
{
"emitterId": string,
"gravity": vector3,
"direction1": vector3,
"direction2": vector3,
"minEmitBox": vector3,
"maxEmitBox": vector3,
"color1": color3,
"color2": color3,
"colorDead": color3,
"deadAlpha": float,
"emitRate": float,
"updateSpeed": float,
"targetStopFrame": int,
"minEmitPower": int,
"maxEmitPower": float,
"minLifeTime": float,
"maxLifeTime": float,
"minSize": float,
"maxSize": float,
"minAngularSpeed": float,
"maxAngularSpeed": float,
"textureName": string,
"blendMode": int,
"capacity": int,
"textureMask": color4,
"linkToEmitter": bool,
"animations": Animations数组 (见下面，可以省略),
"autoAnimate": boolean,
"autoAnimateFrom": int,
"autoAnimateTo": int,
"autoAnimateLoop": boolean (可以省略),
"autoAnimateSpeed": number (可以忽略)
}镜头光晕系统通过如下的JSON格式定义:
{
"emitterId": string,
"borderLimit": int,
"flares": array of LensFlares (见下面)
}镜头光晕通过如下的JSON格式定义:
{
"position": float,
"size": float,
"color": color3,
"textureName": string
}音效通过如下的JSON格式定义:
{
"name": string, (要加载的文件名)
"volume": float, (如果忽略则为1)
"autoplay": bool, (可忽略)
"loop": bool, (可忽略)
"soundTrackId": int, (可忽略)
"spatialSound": bool, (启用3维音效，可忽略)
"position": vector3, (如果忽略则为0,0,0)
"refDistance": float, (可忽略, 默认为1)
"rolloffFactor": float, (可忽略, 默认为1)
"maxDistance": float, (可忽略, 默认为100)
"distanceModel": string, (可忽略, 默认为线性的，其它值: 倒数或指数)
"panningModel": string, (可忽略, 默认为HRTF, 其它值: 等幂)
"isDirectional": bool, (启用方向椎体)
"coneInnerAngle": float, (可忽略,用来设置有向音效)
"coneOuterAngle": float, (可忽略,用来设置有向音效)
"coneOuterGain": float, (可忽略,用来设置有向音效)
"connectedMeshId": string, (网格附着对象的ID)
"localDirectionToMesh": vector3 (可忽略,默认1,0,0)
}动作通过如下的JSON格式定义. 动作可以包含多个子的动作.
{
"type": number, (动作类型. 0 = 触发式, 1 = 动作, 2 = 流控制)
"name": string, (触发式或流程的动作名)
"detached": boolean, (节点是否挂载上. 如果detached === true意味着不会被计算)
"properties": array of properties, (见下面)
"children": array of Actions,
"combine": array of Actions (用于组合动画. 例如 name = "CombineAction". 可以为null)
}属性通过如下JSON格式定义. 属性值总是字符串
{
"name": string, (属性名)
"value": string, (属性值. 例如: name = "target" 和 value = "Plane001")
"targetType": string (BabylonJS动作创建器内部使用的, 指明在哪找到"propertyPath"属性的)
}这儿是个简单的.babylon文件的例子:
{
"autoClear": true,
"clearColor": [0, 0, 0],
"ambientColor": [0, 0, 0],
"gravity": [0, -9.81, 0],
"cameras": [{
"name": "Camera",
"id": "Camera",
"position": [7.4811, 5.3437, -6.5076],
"target": [-0.3174, 0.8953, 0.3125],
"fov": 0.8576,
"minZ": 0.1,
"maxZ": 100,
"speed": 1,
"inertia": 0.9,
"checkCollisions": false,
"applyGravity": false,
"ellipsoid": [0.2, 0.9, 0.2]
}],
"activeCamera": "Camera",
"lights": [{
"name": "Sun",
"id": "Sun",
"type": 1,
"position": [0.926, 7.3608, 14.1829],
"direction": [-0.347, -0.4916, -0.7987],
"intensity": 1,
"diffuse": [1, 1, 1],
"specular": [1, 1, 1]
}],
"materials": [{
"name": "Material",
"id": "Material",
"ambient": [0.8, 0.8, 0.8],
"diffuse": [0.64, 0.64, 0.64],
"specular": [0.5, 0.5, 0.5],
"specularPower": 50,
"emissive": [0, 0, 0],
"alpha": 1,
"backFaceCulling": true,
"diffuseTexture": {
"name": "Metal1.png",
"level": 1,
"hasAlpha": 1,
"coordinatesMode": 0,
"uOffset": 0,
"vOffset": 0,
"uScale": 1,
"vScale": 1,
"uAng": 0,
"vAng": 0,
"wAng": 0,
"wrapU": true,
"wrapV": true,
"coordinatesIndex": 0
}
},
{
"name": "Material.001",
"id": "Material.001",
"ambient": [0.8, 0.8, 0.8],
"diffuse": [0.64, 0.64, 0.64],
"specular": [0.5, 0.5, 0.5],
"specularPower": 50,
"emissive": [0, 0, 0],
"alpha": 1,
"backFaceCulling": true,
"diffuseTexture": {
"name": "concrete5.png",
"level": 1,
"hasAlpha": 1,
"coordinatesMode": 0,
"uOffset": 0,
"vOffset": 0,
"uScale": 5,
"vScale": 5,
"uAng": 0,
"vAng": 0,
"wAng": 0,
"wrapU": true,
"wrapV": true,
"coordinatesIndex": 0
}
}],
"geometries": {
"boxes": [{
"id": "BoxPrimitive",
"size": 2,
"canBeRegenerated": true,
"tags": "Box Primitive Cube CanBeRegenerated"
}],
"vertexData": [{
"id": "CubeGeometry",
"updatable": false,
"positions": [ 1, -1, 1, 1, -1, -1, -1, -1, 1, 1, 1, 1, -1, 1, 1, 1, 1, -1, 1, 1, 1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, 1, 1, 1, 1, 1, -1, 1, -1, 1, 1, -1, -1, -1, -1, 1, -1, 1, 1, 1, 1, 1, -1, 1, -1, -1, 1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, 1],
"normals": [0.5773, -0.5773, 0.5773, 0.5773, -0.5773, -0.5773, -0.5773, -0.5773, 0.5773, 0.5773, 0.5773, 0.5773, -0.5773, 0.5773, 0.5773, 0.5773, 0.5773, -0.5773, 0.5773, 0.5773, 0.5773, 0.5773, -0.5773, -0.5773, 0.5773, -0.5773, -0.5773, 0.5773, 0.5773, -0.5773, -0.5773, -0.5773, -0.5773, -0.5773, -0.5773, -0.5773, -0.5773, 0.5773, -0.5773, -0.5773, -0.5773, 0.5773, 0.5773, 0.5773, 0.5773, 0.5773, -0.5773, 0.5773, -0.5773, 0.5773, 0.5773, -0.5773, -0.5773, -0.5773, -0.5773, 0.5773, -0.5773, 0.5773, 0.5773, 0.5773, 0.5773, 0.5773, -0.5773, 0.5773, -0.5773, -0.5773, 0.5773, 0.5773, -0.5773, -0.5773, 0.5773, -0.5773, -0.5773, 0.5773, 0.5773, -0.5773, -0.5773, 0.5773, 0.5773, -0.5773, 0.5773, -0.5773, -0.5773, 0.5773, -0.5773, 0.5773, 0.5773],
"uvs": [0.5, 0.5, 0.5, 0, 0, 0.5, 0.5, 1, 0, 1, 0.5, 0.5, 0.5, 1, 0, 0.5, 0.5, 0.5, 0.5, 1, 0, 0.5, 0.5, 0.5, 0.5, 1, 1, 0.5, 0.5, 0.5, 0.5, 0, 0, 0.5, 0, 0, 0, 0.5, 0.5, 1, 0, 1, 0, 0.5, 0.5, 1, 0, 1, 1, 1, 1, 0.5, 0.5, 0, 0, 0, 0, 0.5],
"indices": [0, 1, 2, 3, 4, 5, 0, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1, 17, 2, 4, 18, 5, 19, 20, 21, 22, 23, 10, 12, 24, 25, 26, 27, 28]
}]
},
"meshes": [{
"name": "Plane",
"id": "Plane",
"materialId": "Material.001",
"position": [0.0172, -2.9787, -0.5184],
"rotation": [0, 0, 0],
"scaling": [87.1479, 0.8635, 87.1479],
"isVisible": true,
"isEnabled": true,
"checkCollisions": false,
"billboardMode": 0,
"receiveShadows": true,
"positions": [-1, 0, -1, 1, 0, -1, -1, 0, 1, 1, 0, 1],
"normals": [0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0],
"uvs": [0.0001, 0.0001, 0.9999, 0.0001, 0.0001, 0.9999, 0.9999, 0.9999],
"indices": [0, 1, 2, 1, 3, 2],
"subMeshes": [{
"materialIndex": 0,
"verticesStart": 0,
"verticesCount": 4,
"indexStart": 0,
"indexCount": 6
}]
},
{
"name": "Cube",
"id": "Cube",
"materialId": "Material",
"geometryId": "CubeGeometry",
"position": [0, 0, 0],
"rotation": [0, 0, 0],
"scaling": [1, 1, 1],
"isVisible": true,
"isEnabled": true,
"checkCollisions": false,
"billboardMode": 0,
"receiveShadows": false,
"subMeshes": [{
"materialIndex": 0,
"verticesStart": 0,
"verticesCount": 29,
"indexStart": 0,
"indexCount": 36
}],
"animations": [{
"dataType": 1,
"framePerSecond": 30,
"loopBehavior": 1,
"name": "position animation",
"property": "position",
"keys": [{
"frame": 0,
"values": [0,0,0.0291]
},
{
"frame": 1,
"values": [0,0,0.0291]
},
{
"frame": 30,
"values": [0,0,10]
},
{
"frame": 60,
"values": [0,0,9.975]
},
{
"frame": 90,
"values": [0,0,0]
},
{
"frame": 250,
"values": [0,0,0]
}]
},
{
"dataType": 1,
"framePerSecond": 30,
"loopBehavior": 1,
"name": "rotation animation",
"property": "rotation",
"keys": [{
"frame": 0,
"values": [-0.016, 0, 0]
},
{
"frame": 30,
"values": [-0.016, 0, 0]
},
{
"frame": 60,
"values": [-6.2832, 0, 0]
},
{
"frame": 250,
"values": [-6.2832, 0, 0]
}]
}],
"autoAnimate": true,
"autoAnimateFrom": 0,
"autoAnimateTo": 250,
"autoAnimateLoop": true
},
{
"name": "Cube2",
"id": "Cube2",
"materialId": "Material",
"geometryId": "CubeGeometry",
"position": [10, 0, 0],
"rotation": [0, 0, 0],
"scaling": [1, 1, 1],
"isVisible": true,
"isEnabled": true,
"checkCollisions": false,
"billboardMode": 0,
"receiveShadows": false,
"subMeshes": [{
"materialIndex": 0,
"verticesStart": 0,
"verticesCount": 29,
"indexStart": 0,
"indexCount": 36
}]
},
{
"name": "Cube3",
"id": "Cube3",
"materialId": "Material",
"geometryId": "BoxPrimitive",
"position": [-10, 0, 0],
"rotation": [0, 0, 0],
"scaling": [1, 1, 1],
"isVisible": true,
"isEnabled": true,
"checkCollisions": false,
"billboardMode": 0,
"receiveShadows": false,
"subMeshes": [{
"materialIndex": 0,
"verticesStart": 0,
"verticesCount": 29,
"indexStart": 0,
"indexCount": 36
}]
}],
"multiMaterials": [],
"shadowGenerators": [{
"useVarianceShadowMap": true,
"mapSize": 1024,
"lightId": "Sun",
"renderList": ["Cube", "Cube2", "Cube3"]
}],
"skeletons": [],
"sounds": [{
"name": "violons11.wav",
"volume": 1,
"autoplay": true,
"loop": true,
"soundTrackId": 1
"spatialSound": true,
"position": [0, 0, 0]
"refDistance": 1.0,
"rolloffFactor": 1.0,
"maxDistance": 100,
"distanceModel": "linear",
"panningModel": "equalpower",
"isDirectional": false,
"coneInnerAngle": 90,
"coneOuterAngle": 180,
"coneOuterGain": 0,
"connectedMeshId": 0,
"localDirectionToMesh": [1, 0, 0]
}]
}原文地址:http://doc.babylonjs.com/generals/File_Format_Map_(.babylon)#grounds
github上译文:https://github.com/h53d/babylonjs-doc-cn/blob/master/target/generals/General/File_Format_Map_(.babylon).md
BabylonJS文件格式---基于WebGL的H5 3D游戏引擎
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原文地址：http://blog.csdn.net/aceway/article/details/51318198
