export class Texture2dTest
{
    private sprite3D:Laya.Sprite3D;
    private readonly AllPng:string[] = ["pic-001.png","output-06.png"];
    private texture:Laya.Texture2D;
    private box;
    constructor(){
        Laya3D.init(0, 0);
		Laya.stage.scaleMode = Laya.Stage.SCALE_FULL;
		Laya.stage.screenMode = Laya.Stage.SCREEN_NONE;
		Laya.Stat.show();
		
		var scene = Laya.stage.addChild(new Laya.Scene3D()) as Laya.Scene3D;
		
		var camera = scene.addChild(new Laya.Camera(0, 0.1, 0)) as Laya.Camera;
		camera.transform.translate(new Laya.Vector3(0, 2, 20));
		camera.transform.rotate(new Laya.Vector3(-15, 0, 0), true, false);
		camera.clearColor = new Laya.Vector4(0.2, 0.2, 0.2, 1.0);
		
		var directionLight = scene.addChild(new Laya.DirectionLight()) as Laya.DirectionLight;
		//设置平行光的方向
		var mat = directionLight.transform.worldMatrix as Laya.Matrix4x4;
		mat.setForward(new Laya.Vector3(-1.0, -1.0, -1.0));
		directionLight.transform.worldMatrix=mat;
		
		this.sprite3D = scene.addChild(new Laya.Sprite3D()) as Laya.Sprite3D;
		
		//正方体
		var box = this.sprite3D.addChild(new Laya.MeshSprite3D(Laya.PrimitiveMesh.createPlane())) as Laya.MeshSprite3D;
		this.box = box;
        box.transform.position = new Laya.Vector3(0.0, 0.0, 0);
		box.transform.rotate(new Laya.Vector3(90, 0, 0), false, false);
        Laya.loader.load(this.AllPng,new Laya.Handler(this,this.onCallBack),null,Laya.Loader.BUFFER);

		Laya.stage.on(Laya.Event.KEY_DOWN,this,this.onKey);
        //########################################################################
    }

    private curStatus:boolean = false;
    
	private refreshCamera(){
        this.curStatus =!this.curStatus;
        let data:ArrayBuffer = Laya.Loader.getRes(this.AllPng[this.curStatus  ? 0: 1]);//pic-001
        const x2 = new Uint8Array(data);
        let p = new window['PNG'](x2);
        let getData =  p.decode();//rgba数组序列
        this.texture.setPixels(getData);
    }
    private onKey(e){
        if(e.keyCode == 49){
			this.refreshCamera();
			// this.updateUITexture(data);

		}else if(e.keyCode == 50){
			// let t = Laya.Loader.getRes(this.AllPng[0]);
			// console.log(t);
		}
    }

    private onCallBack(){
        var mater = new Laya.BlinnPhongMaterial();
		//new Laya.UnlitMaterial();
		//Laya.BlinnPhongMaterial();
		
		// const x2 = new Uint8Array(data);
		// let p = new window['PNG'](x2);
		// let getData =  p.decode();

		let texture:Laya.Texture2D = new Laya.Texture2D(544,960);//p.width,p.height
		this.texture = texture;
        this.refreshCamera();
		//在U方向上使用WARPMODE_CLAMP
		// texture.format = Laya.TextureFormat.ASTC10x10
		texture.wrapModeU = Laya.BaseTexture.WARPMODE_CLAMP;
		//在V方向使用WARPMODE_REPEAT
		texture.wrapModeV = Laya.BaseTexture.WARPMODE_CLAMP;
		//设置过滤方式
		texture.filterMode = Laya.BaseTexture.FILTERMODE_BILINEAR;
		//设置各向异性等级
		texture.anisoLevel = 2;
		// texture.setCompressData(data);
		
		mater.albedoTexture = texture;
		//修改材质贴图的平铺和偏移
		// var tilingOffset:Laya.Vector4 = mater.tilingOffset;
		// tilingOffset.setValue(2, 2, 0, 0);
		// mater.tilingOffset = tilingOffset;
		
		this.box.meshRenderer.material =mater;
    }
}
附件：
Texture2dTest.zip
Texture2dTest.zip