Texture == struct ?? {
      aR, aG, aB,  /* ambient color */
      dR, dG, dB,  /* diffuse color */
      sR, sG, sB,  /* specular color */
      tR, tG, tB,  /* transparent color */
      ir,          /* index of refraction */
      REAL n;     /* Phong specular exponent */;
    }