Babylonjs实现广告牌

效果：

代码：
参考文档：
https://doc.babylonjs.com/features/featuresDeepDive/mesh/billboardMode
https://doc.babylonjs.com/features/featuresDeepDive/mesh/creation/set/plane

import { MeshBuilder, Scene, Texture, StandardMaterial, Nullable, Vector3, Color3, PointerEventTypes } from "@babylonjs/core"
class CreateTitle {createTitle(position: Vector3, options: Object, scene: Scene, img: Nullable<string>, callback: any) {let plane = MeshBuilder.CreatePlane("plane", options, scene);plane.position = position;plane.billboardMode = 7;let material = new StandardMaterial("", scene);if (typeof callback == "function") {scene.onPointerObservable.add((e) => {if (e.pickInfo && e.pickInfo.pickedMesh === plane) {callback(e.pickInfo.pickedMesh)}}, PointerEventTypes.POINTERDOWN)}if (img) {material.diffuseTexture = new Texture(img, scene);material.diffuseTexture.hasAlpha = true;material.backFaceCulling = true;} else {material.diffuseColor = Color3.Blue();}plane.material = material;return plane;}
}
//调用new CreateTitle().createTitle(position, { width:100,height:50}, scene, "/image/sxj.png",(e)=>{alert(11)})

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