Timeline使用LineRender划线

 1 using UnityEngine;
 2 using UnityEngine.Timeline;
 3 using UnityEngine.Playables;
 4 
 5 [System.Serializable]
 6 public class LinePlayableAsset : PlayableAsset
 7 {
 8     public ExposedReference<Transform> m_StartObj;
 9     public ExposedReference<Transform> m_EndObj;
10     public ExposedReference<LineRenderer> m_Line;
11     public Color m_LineColr = Color.red;
12     
13     public override Playable CreatePlayable(PlayableGraph graph, GameObject go)
14     {
15         var bhr= ScriptPlayable<LineBhr>.Create(graph);
16         bhr.GetBehaviour().m_StartObj = m_StartObj.Resolve(graph.GetResolver());
17         bhr.GetBehaviour().m_EndObj = m_EndObj.Resolve(graph.GetResolver());
18         bhr.GetBehaviour().m_EndObj = m_EndObj.Resolve(graph.GetResolver());
19         bhr.GetBehaviour().m_Line = m_Line.Resolve(graph.GetResolver());
20         bhr.GetBehaviour().m_LineColr = m_LineColr;
21         return bhr;
22     }
23 }
24 
25 public class LineBhr:PlayableBehaviour,ITimelineClipAsset
26 {
27     public Transform m_StartObj;
28     public Transform m_EndObj;
29     public Color m_LineColr = Color.red;
30     public LineRenderer m_Line;
31     
32     
33     
34     public override void OnBehaviourPlay(Playable playable, FrameData info)
35     {
36         base.OnBehaviourPlay(playable, info);
37         LineParameterSetting();
38     }
39     
40     void LineParameterSetting()
41     {
42         if (m_Line != null)
43         {
44             //设置材质
45             m_Line.material = new Material(Shader.Find("Legacy Shaders/Particles/Additive"));
46             m_Line.sharedMaterial.color = m_LineColr;
47             //设置颜色
48             m_Line.startColor = m_LineColr;
49             m_Line.endColor = m_LineColr;
50        //     m_Line.useWorldSpace = false;
51 
52 
53             //设置宽度
54             m_Line.startWidth = 0.05f;
55             m_Line.endWidth = 0.05f;
56         }
57         else
58         {
59             Debug.LogError("Line is Null");
60             return;
61         }
62     }
63 
64     public override void ProcessFrame(Playable playable, FrameData info, object playerData)
65     {
66         base.ProcessFrame(playable, info, playerData);
67         if (m_Line != null)
68         {
69             var curTime = (float) (playable.GetTime()/ playable.GetDuration());
70             var endPos = Vector3.Lerp(m_StartObj.position, m_EndObj.position, curTime);
71             m_Line.SetPosition(0, m_StartObj.position); 
72             m_Line.SetPosition(1, endPos);
73         }
74         else
75         {
76             Debug.LogError("Line is Null");
77         }
78     }
79 
80     public ClipCaps clipCaps
81     {
82         get { return ClipCaps.None; }
83     }
84 }

上面一部分是划线逻辑，下面是Track设置

 1 using System.Collections;
 2 using System.Collections.Generic;
 3 using UnityEngine;
 4 using UnityEngine.Timeline;
 5 using UnityEngine.Playables;
 6 using UnityEngine.Timeline;
 7 
 8 [System.Serializable]
 9 [TrackClipType(typeof(LinePlayableAsset))]
10 [TrackColor(0.8f, 0.2f, 0.5f)]
11 
12 public class LineTrack : TrackAsset
13 {
14    public override Playable CreateTrackMixer(PlayableGraph graph, GameObject go, int inputCount)
15    {
16       return ScriptPlayable<LineMixerBhr>.Create(graph, inputCount);
17    }
18 }
19 
20 public class LineMixerBhr:PlayableBehaviour
21 {
22    
23 }

posted on 2021-12-22 14:11 红灯亮了阅读(61) 评论(0) 收藏举报