UNITY BAKEMESH 残影实现

1. using UnityEngine;
2. using System. Collections;
3.  
4. public class BakeMeshTest : MonoBehaviour
5. {
6.     void Start ( )
7.     {
8.         // Get the state for the clip we want to bake
9.         AnimationState clipState = m_animation [m_clipToBake ];
10.         if (clipState == null )
11.         {
12.             Debug. LogError ( string. Format ( "Unable to get clip '{0}'", m_clipToBake ), this );
13.             return;
14.         }
15.        
16.         // Start playing the clip
17.         m_animation. Play (m_clipToBake, PlayMode. StopAll );
18.        
19.         // Set time to start
20.         clipState. time = 0.0f;
21.        
22.         // Calculate time between baked frames
23.         float deltaTime = clipState. length / ( float ) (m_numFramesToBake - 1 );
24.        
25.         // Bake the frames
26.         for ( int frameIndex = 0; frameIndex < m_numFramesToBake; ++frameIndex )
27.         {
28.             string frameName = string. Format ( "BakedFrame{0}", frameIndex );
29.            
30.             // Create a mesh to store this frame
31.             Mesh frameMesh = new Mesh ( );
32.             frameMesh. name = frameName;
33.            
34.             // Sample animation to get bones in the right place
35.             m_animation. Sample ( );
36.            
37.             // Bake the mesh
38.             m_skinnedMeshRenderer. BakeMesh (frameMesh );
39.            
40.             // Setup game object to show frame
41.             GameObject frameGO = new GameObject (frameName );
42.             frameGO. name = frameName;
43.             frameGO. transform. position = transform. position + new Vector3 (frameIndex, 0.0f, 0.0f );
44.            
45.             // Setup mesh filter
46.             MeshFilter meshFilter = frameGO. AddComponent<MeshFilter> ( );
47.             meshFilter. mesh = frameMesh;
48.            
49.             // Setup mesh renderer
50.             MeshRenderer meshRenderer = frameGO. AddComponent<MeshRenderer> ( );
51.             meshRenderer. sharedMaterials = m_skinnedMeshRenderer. sharedMaterials;
52.            
53.             // Move to next frame time
54.             clipState. time += deltaTime;
55.         }
56.        
57.         // Stop playing
58.         m_animation. Stop ( );
59.     }
60.    
61.     [SerializeField ]
62.     Animation m_animation; // Animation component used for baking
63.    
64.     [SerializeField ]
65.     SkinnedMeshRenderer m_skinnedMeshRenderer; // Skinned mesh renderer used for baking
66.    
67.     [SerializeField ]
68.     string m_clipToBake = "Idle"; // Name of the animation clip to bake
69.    
70.     [SerializeField ]
71.     int m_numFramesToBake = 30; // Number of frames to bake
72. }