unity3d 帧动画主要介绍序列帧动画，下面上图和源代码：

序列帧动画的实质是uv信息的变化，理解Tiling（图片占得比例大小）和Offset（图片的偏移量）。 默认左下角offset为0 0 Tiling为小图/大图

代码如下：

  1. public int rowNum ;

  3. public int lineNum ;

  5.  

  7. public float iconwidth ;

  9. public float iconheight ;

  11. public int tileNum=6;

  13. public float texWidth ;

  15. public float texHeight ;

  17. int achievementIndex=0;

  19. float uWidth = 0;

  21. float vHeight = 0;

  23. // Use this for initialization

  25. void Start () {

  27.  

  29.  

  31.     uWidth=iconwidth/texWidth;

  33. vHeight=iconheight/texHeight;

  35.     InvokeRepeating("AnimationTexture",0,0.1f);

  37. }

  39.  

  41. void AnimationTexture()

  43. {   

  45. if(achievementIndex>tileNum)

  47. {

  49. achievementIndex=0;

  51. }

  53. int rowIndex=achievementIndex/rowNum;

  55. int lineIndex=achievementIndex%lineNum;

  57.  

  59. float uNums=lineIndex*uWidth;

  61. float vNums=1-rowIndex*vHeight;

  63. Vector2 size=new Vector2(uWidth,vHeight);

  65. renderer.material.SetTextureOffset("_MainTex",new Vector2(uNums,vNums));

  67. renderer.material.SetTextureScale("_MainTex",size);

  69. achievementIndex++;

  71.  

  73. }