typedef struct _ccV3F_C4B_T2F_Quad
{
    ccV3F_C4B_T2F    tl;     //top-left
    ccV3F_C4B_T2F    bl;     //bottom-left
    ccV3F_C4B_T2F    tr;     //top-right
    ccV3F_C4B_T2F    br;    //bottom-right
} ccV3F_C4B_T2F_Quad;

typedef struct _ccV3F_C4B_T2F
{
    ccVertex3F        vertices;     //顶点
    ccColor4B        colors;            //颜色
    ccTex2F            texCoords;      //纹理
} ccV3F_C4B_T2F;

typedef struct _ccVertex3F
{
    GLfloat x;
    GLfloat y;
    GLfloat z;
} ccVertex3F;

typedef struct _ccColor4B
{
    GLubyte r;
    GLubyte g;
    GLubyte b;
    GLubyte a;
} ccColor4B;

typedef struct _ccTex2F {
     GLfloat u;
     GLfloat v;
} ccTex2F;