Unity-3D增強(qiáng)現(xiàn)實(shí)開發(fā)-第13章-實(shí)踐案例課件

1、第13章 實(shí)踐案例知識(shí)目標(biāo)能力目標(biāo)任務(wù)引入Saturday, July 23, 20221知識(shí)目標(biāo)使用Unity3D來創(chuàng)建一個(gè)完整的應(yīng)用Saturday, July 23, 20222能力目標(biāo)使用 Unity 3D 來創(chuàng)建一個(gè)完整的應(yīng)用Saturday, July 23, 20223任務(wù)引入使用 Unity 3D 來創(chuàng)建一個(gè)完整的AR應(yīng)用。Saturday, July 23, 2022413.1 準(zhǔn)備工作 注冊(cè)掃描的圖片和License Key；單擊 “Download Database”下載注冊(cè)好的識(shí)別圖；單擊 Create Project 創(chuàng)建工程。圖 13- 1 圖片識(shí)別度Saturda

2、y, July 23, 20225導(dǎo)入識(shí)別圖、模型和 Vuforia SDK圖 13- 2 導(dǎo)入圖片Saturday, July 23, 2022613.2 導(dǎo)入素材 單擊 AR Camera，在Inspector 面板中的 Vuforia Behavior 腳本中找到 App License Key。圖 13- 3 App License KeySaturday, July 23, 20227將License Key粘貼到 App License Key 的空白處圖 13- 4 License KSaturday, July 23, 20228將 Database 和 Image Targe

3、t 屬性分別設(shè)置成創(chuàng)建的 Database 和識(shí)別圖片；使模型成為 Image Target 的子物體，并適當(dāng)調(diào)整模型的大小、位置和角度。圖 13- 5 設(shè)置完成圖 13-6 設(shè)置為子物體Saturday, July 23, 20229測(cè)試效果Saturday, July 23, 20221013.3 添加動(dòng)畫 圖 13- 8 預(yù)覽窗口Saturday, July 23, 202211狀態(tài)連接Saturday, July 23, 202212添加Animator 組件圖 13- 10 Animator 組件設(shè)置Saturday, July 23, 202213編寫用來控制動(dòng)畫播放的腳本圖 13

4、- 11 Det 的設(shè)置提示：代碼較長，在PPT結(jié)尾處給出。Saturday, July 23, 20221413.4 添加聲音 圖 13- 12 添加代碼Saturday, July 23, 20221513.5 添加特效和背景 添加一個(gè)出場(chǎng)特效 圖 13-13 預(yù)制體圖 13-14 設(shè)置Saturday, July 23, 202216新建一個(gè)Particle 的腳本，在腳本的 Update 函數(shù)中加入代碼。其中 ps 是 ParticleSystem 類型的變量，ff 為 Found_fish 類型的變量，然后將該腳本賦給預(yù)制體，測(cè)試效果如圖 13-16 所示。圖 13-16 效果圖 1

5、3- 15 代碼Saturday, July 23, 202217添加背景圖片圖 13- 18 背景圖 13- 17 材質(zhì)球設(shè)置Saturday, July 23, 20221813.6 添加交互功能 創(chuàng)建一個(gè)名為 Move 的腳本來實(shí)現(xiàn)游動(dòng)圖 13- 19 Plane Saturday, July 23, 20221913.7 添加脫卡功能 圖 13- 20 剩余組件圖 13- 21設(shè)置子物體Saturday, July 23, 202220變量設(shè)置Saturday, July 23, 20222113.8 打包下載 詳細(xì)打包過程請(qǐng)參閱第 12 章相關(guān)內(nèi)容。Saturday, July 23

6、, 202222Found_fish 腳本代碼：using UnityEngine;using Vuforia;public class Found_fish : MonoBehaviour,ITrackableEventHandlerprivate TrackableBehaviour mTrackableBehaviour;public bool TargetFound=false;void Start()mTrackableBehaviour = GetComponent();if (mTrackableBehaviour)mTrackableBehaviour.RegisterTrac

7、kableEventHandler(this);Saturday, July 23, 202223public void OnTrackableStateChanged(TrackableBehaviour.Status previousStatus,TrackableBehaviour.Status newStatus)if (newStatus = TrackableBehaviour.Status.DETECTED |newStatus = TrackableBehaviour.Status.TRACKED |newStatus = TrackableBehaviour.Status.E

8、XTENDED_TRACKED)OnTrackingFound();TargetFound = true; elseOnTrackingLost();TargetFound = false;Saturday, July 23, 202224private void OnTrackingFound()Renderer rendererComponents = GetComponentsInChildren(true);Collider colliderComponents = GetComponentsInChildren(true);foreach (Renderer component in

9、 rendererComponents)component.enabled = true;foreach (Collider component in colliderComponents)component.enabled = true;Debug.Log(Trackable + mTrackableBehaviour.TrackableName + found);Saturday, July 23, 202225private void OnTrackingLost()Renderer rendererComponents = GetComponentsInChildren(true);C

10、ollider colliderComponents = GetComponentsInChildren(true);foreach (Renderer component in rendererComponents)component.enabled = false;foreach (Collider component in colliderComponents)component.enabled = false;Debug.Log(Trackable + mTrackableBehaviour.TrackableName + lost);Saturday, July 23, 202226ModelController 腳本代碼：Animator ani;public Found_fish dte = new Fo