zencart网站建设国内最新消息新闻

glb加载参考：cesium 添加几何对象 entity primitive_cesium.js 添加几何体-CSDN博客

使用entity方式加载的glb，默认会开启动画，但使用primitive加载的glb，需要手动开启动画

let modelPosition = Cesium.Cartesian3.fromDegrees(...position)
let modelMatrix = Cesium.Transforms.headingPitchRollToFixedFrame(modelPosition, new Cesium.HeadingPitchRoll(Cesium.Math.toRadians(heading - 90)));
let model = primitiveCollection.add(Cesium.Model.fromGltf({url: url,minimumPixelSize: 50,modelMatrix: modelMatrix,scale})
);model.readyPromise.then((model) => {// 手动开启动画model.activeAnimations.addAll({loop: Cesium.ModelAnimationLoop.REPEAT // 让动画循环播放});
});