transEnd is the user callback that is called after the coordinate conversion of this cluster is completed
Specifies a routine. This callback routine is 3D connected to the cluster
Called for each object. Set to 0 if there is no callback routine. 

[Calling sequence of transStart routine]
void  transEnd(SprCluster *cluster, SprObject3D *object,

                            MthMatrix *worldMatrix, MthXyz *worldVertPoint);

     cluster: Local cluster table
     object: 3D object table
     worldMatrix: Transformation matrix to world coordinate system (3 rows by 4 columns)
     worldVertPoint: Vertex coordinate value table in the world coordinate system
                    (3D sprite work area definition macro
                     Return when #define SPR_3NEED_WORLD_VERT is defined. )

context is a context area that the user callback routine uses for each cluster.
Specify Set to 0 if not.