问如何将纹理应用于glutSolidCube

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/* Copyright (c) Mark J. Kilgard, 1994, 1997. */

/**                                                                             
(c) Copyright 1993, Silicon Graphics, Inc.                                      

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"AS-IS" AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR
OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL SILICON GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE
ELSE FOR ANY DIRECT, SPECIAL, INCIDENTAL, INDIRECT OR
CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER,
INCLUDING WITHOUT LIMITATION, LOSS OF PROFIT, LOSS OF USE,
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NOT SILICON GRAPHICS, INC.  HAS BEEN ADVISED OF THE POSSIBILITY
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ARISING OUT OF OR IN CONNECTION WITH THE POSSESSION, USE OR
PERFORMANCE OF THIS SOFTWARE.

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Use, duplication, or disclosure by the Government is subject to
restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
(c)(1)(ii) of the Rights in Technical Data and Computer
Software clause at DFARS 252.227-7013 and/or in similar or
successor clauses in the FAR or the DOD or NASA FAR
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*/

static void
drawBox(GLfloat size, GLenum type)
{
  static GLfloat n[6][3] =
  {
    {-1.0, 0.0, 0.0},
    {0.0, 1.0, 0.0},
    {1.0, 0.0, 0.0},
    {0.0, -1.0, 0.0},
    {0.0, 0.0, 1.0},
    {0.0, 0.0, -1.0}
  };
  static GLint faces[6][4] =
  {
    {0, 1, 2, 3},
    {3, 2, 6, 7},
    {7, 6, 5, 4},
    {4, 5, 1, 0},
    {5, 6, 2, 1},
    {7, 4, 0, 3}
  };
  GLfloat v[8][3];
  GLint i;

  v[0][0] = v[1][0] = v[2][0] = v[3][0] = -size / 2;
  v[4][0] = v[5][0] = v[6][0] = v[7][0] = size / 2;
  v[0][1] = v[1][1] = v[4][1] = v[5][1] = -size / 2;
  v[2][1] = v[3][1] = v[6][1] = v[7][1] = size / 2;
  v[0][2] = v[3][2] = v[4][2] = v[7][2] = -size / 2;
  v[1][2] = v[2][2] = v[5][2] = v[6][2] = size / 2;

  for (i = 5; i >= 0; i--) {
    glBegin(type);
    glNormal3fv(&n[i][0]);
    glVertex3fv(&v[faces[i][0]][0]);
    glVertex3fv(&v[faces[i][1]][0]);
    glVertex3fv(&v[faces[i][2]][0]);
    glVertex3fv(&v[faces[i][3]][0]);
    glEnd();
  }
}

void APIENTRY
glutSolidCube(GLdouble size)
{
  drawBox(size, GL_QUADS);
}

    glEnable(GL_TEXTURE_GEN_S); //enable texture coordinate generation
    glEnable(GL_TEXTURE_GEN_T);
    glBindTexture(GL_TEXTURE_2D, theTexture[2]);
    glutSolidCube(2);
    glDisable(GL_TEXTURE_GEN_S); //enable texture coordinate generation
    glDisable(GL_TEXTURE_GEN_T);

    void drawBox() {
        static glm::vec3 n[6] =
        {
          {-1.0, 0.0, 0.0},
          {0.0, 1.0, 0.0},
          {1.0, 0.0, 0.0},
          {0.0, -1.0, 0.0},
          {0.0, 0.0, 1.0},
          {0.0, 0.0, -1.0}
        };
        static int faces[6][4] =
        {
          {0, 1, 2, 3},
          {3, 2, 6, 7},
          {7, 6, 5, 4},
          {4, 5, 1, 0},
          {5, 6, 2, 1},
          {7, 4, 0, 3}
        };
        glm::vec3 v[8];
        int i;

        v[0][0] = v[1][0] = v[2][0] = v[3][0] = -1;
        v[4][0] = v[5][0] = v[6][0] = v[7][0] = 1;
        v[0][1] = v[1][1] = v[4][1] = v[5][1] = -1;
        v[2][1] = v[3][1] = v[6][1] = v[7][1] = 1;
        v[0][2] = v[3][2] = v[4][2] = v[7][2] = -1;
        v[1][2] = v[2][2] = v[5][2] = v[6][2] = 1;

        auto& surface = surfaces[0];

        for ( i = 0; i < 6; i++ ) {
            for ( int j = 0; j < 4; j++ ) 
                surface.normals.push_back( n[i] );
            auto i1 = i * 4;
            surface.indices.push_back( i1 + 0 );
            surface.indices.push_back( i1 + 1 );
            surface.indices.push_back( i1 + 3 );
            surface.indices.push_back( i1 + 1 );
            surface.indices.push_back( i1 + 2 );
            surface.indices.push_back( i1 + 3 );
            surface.vertices.push_back( v[faces[i][0]] );
            surface.vertices.push_back( v[faces[i][1]] );
            surface.vertices.push_back( v[faces[i][2]] );
            surface.vertices.push_back( v[faces[i][3]] );
            surface.texCoords.push_back( { 0, 0 } );
            surface.texCoords.push_back( { 0, 1 } );
            surface.texCoords.push_back( { 1, 0 } );
            surface.texCoords.push_back( { 1, 1 } );
        }
    }