opengl顶点数组贴图的问题
之前顶点数组这一块完全是自己在摸索，现在发现没人指导一下完全做不下去了。。。
所以可能程序和提问都有点小白，请大神轻喷。。。。
问题：贴图的数组怎么对应索引呢？代码如下，有两个面的贴图是乱的。。。。
还有就是要用多重纹理的话，该如何写呢。。。。

static const GLfloat vertex_list[][3] = {
     -10.0f, -10.0f, -10.0f,
      10.0f, -10.0f, -10.0f,
     -10.0f,   10.0f, -10.0f,
      10.0f,   10.0f, -10.0f,
     -10.0f, -10.0f,   10.0f,
      10.0f, -10.0f,   10.0f,
     -10.0f,   10.0f,   10.0f,
      10.0f,   10.0f,   10.0f,
};

static const GLfloat texCoord_list[][2] = {
0.0f,0.0f,
1.0f,0.0f,
1.0f,1.0f,
0.0f,1.0f,
 1.0f,0.0f,
1.0f,1.0f,
0.0f,1.0f,
0.0f,0.0f,
};


static const GLint index_list[][4] = {
     4, 5, 7, 6,
     0, 2, 3, 1,
     2, 6, 7, 3,
     0, 1, 5, 4,
     1, 3, 7, 5,
     0, 4, 6, 2,
};



glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, vertex_list);
glTexCoordPointer(2,GL_FLOAT,0,texCoord_list);
glDrawElements(GL_QUADS, 24, GL_UNSIGNED_INT, index_list);

[解决办法]
debug glDrawElements()
each time send one quad down, find the incorrent indices, like this:
&index_list[0]
&index_list[4]
...