    This first special texture is the 'tiles' texture.  It works just like
 the 'checker' pigment pattern except it colors the blocks with entire tex-
 tures rather than solid colors.  The syntax is:
       texture{
          tiles {
             texture {... put in a texture here ...}
          }
          tile2
             texture {... this is the second tile texture}
          }
          // Optionally put translate, rotate or scale here
       }

    For example:
       texture{
          tiles {
             texture { Jade }
          }
          tile2
             texture { Red_Marble }
          }
       }

    The textures used in each tile may be any type of texture including more
 tiles or regular textures made from pigment, normal and finish statements.

    NOTE: No other pigment, normal or finish statements may be added to the
 texture.  This is illegal:
       texture {
          tiles {
             texture { T1 }
          }
          tile2
             texture { T2 }
          }
          finish { phong 1.0 }
       }

    The finish must be individually added to each texture.

    NOTE: Earlier versions of POV-Ray used only the pigment parts of the tex-
 tures in the tiles.  Normals and finish were ignored.  Also layered textures
 were not supported.  In order to correct these problems the above restric-
 tions on syntax were necessary.  This means some POV-Ray 1.0 scenes using
 tiles many need minor modifications that cannot be done automatically with
 the version compatibility mode.

    The textures within a tiles texture may be layered but tiles textures do
 not work as part of a layered texture.
