unity+Vuforia实现用虚拟按钮进行交互，用手势控制模型旋转和缩放

2023-10-17 05:36| 来源: 网络整理| 查看: 265

用unity+Vuforia制作了一个简单的AR演示，实现用虚拟按钮进行交互，用手势控制模型旋转和缩放。 Vuforia虚拟按钮手势控制模型旋转缩放

视频链接：https://www.bilibili.com/video/BV1Ny4y147aW/

在这里插入图片描述

关于Vuforia sdk的安装，unity的安卓环境配置和打包apk，网上教程很多，这里就不介绍了，主要放一下虚拟按钮和手势控制的代码，供大家参考学习。

我的unity版本是2019.4.24f1c1，Vuforia sdk版本是目前最新版9.8.5，人物模型是从unity商店免费下载的。

Vuforia虚拟按钮 using System.Collections; using System.Collections.Generic; using UnityEngine; using Vuforia; public class VbController : MonoBehaviour { public GameObject girl; private Animator animator; void Start() { girl = GameObject.Find("girl"); animator = girl.GetComponent(); var vbbs = GetComponentsInChildren(); for (int i = 0; i < vbbs.Length; ++i) { vbbs[i].RegisterOnButtonPressed(OnButtonPressed); vbbs[i].RegisterOnButtonReleased(OnButtonReleased); } } public void OnButtonPressed(VirtualButtonBehaviour vb) { switch (vb.VirtualButtonName) { case "RunButton": animator.SetBool("walk", false); animator.SetBool("run", true); break; case "WalkButton": animator.SetBool("run", false); animator.SetBool("walk", true); break; default: animator.SetBool("walk", false); animator.SetBool("run", false); break; } } public void OnButtonReleased(VirtualButtonBehaviour vb) { animator.Play("Idle"); } } 手势控制模型旋转缩放 using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.EventSystems; using UnityEngine.UI; public enum FingerIE { zero, OneFinger, TwoFinger, } public class FingerController : MonoBehaviour { public Vector3 initialRot; public Vector3 initialSca; public static FingerController instance; IEnumerator ie; FingerIE finger_num = FingerIE.zero; void Awake() { instance = this; } // Update is called once per frame void Update() { if (Input.touchCount == 0) { if (finger_num != FingerIE.zero) { StopCoroutine(ie); ie = null; finger_num = FingerIE.zero; } } else if (Input.touchCount == 1) { if (finger_num != FingerIE.OneFinger) { if (ie != null) { StopCoroutine(ie); } ie = IMonitorMouseOneFinger(); StartCoroutine(ie); finger_num = FingerIE.OneFinger; } } else if (Input.touchCount == 2) { if (finger_num != FingerIE.TwoFinger) { if (ie != null) { StopCoroutine(ie); } ie = IIMonitorMouseTwoFinger(); StartCoroutine(ie); finger_num = FingerIE.TwoFinger; } } } /// /// 一根手指控制转动 /// /// IEnumerator IMonitorMouseOneFinger() { Touch oneFingerTouch; while (true) { oneFingerTouch = Input.GetTouch(0); if (oneFingerTouch.phase == TouchPhase.Moved) { Vector2 deltaPos = oneFingerTouch.deltaPosition; //transform.Rotate(-Vector3.forward * deltaPos.x * 0.2f, Space.Self); //transform.Rotate(-Vector3.left * deltaPos.y * 0.2f, Space.Self); //模型绕自身y轴旋转 transform.Rotate(-Vector3.up * deltaPos.x * 0.2f, Space.Self); } yield return 0; } } /// /// 两个手指控制缩放 /// /// IEnumerator IIMonitorMouseTwoFinger() { Touch firstOldTouch; Touch secondOldTouch; Touch firstNewTouch; Touch secondNewTouch; float oldDistance; float newDistance; while (true) { firstOldTouch = Input.GetTouch(0); secondOldTouch = Input.GetTouch(1); oldDistance = Vector2.Distance(firstOldTouch.position, secondOldTouch.position); yield return 0; firstNewTouch = Input.GetTouch(0); secondNewTouch = Input.GetTouch(1); newDistance = Vector2.Distance(firstNewTouch.position, secondNewTouch.position); if (oldDistance > newDistance && this.transform.localScale.x > 0.25f) { this.transform.localScale -= Vector3.one * 0.1f; } else if (oldDistance < newDistance && this.transform.localScale.x < 2f) { this.transform.localScale += Vector3.one * 0.1f; } } } /// /// 复位 /// public void ResetRot() { this.transform.localEulerAngles = initialRot; this.transform.localScale = initialSca; } }

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