8

Coordinates Rollout (2D) 1435
Aswithtiling,youcanmirrorintheUdimension,
the V dimension, or both. The Tiling parameter
for each dimension specifies how many copies of
themapareshown.Eachcopyisflippedrelativeto
its neighbors.
Mirroring a map
Tiling and Mirr or ing Combined
Because mirroring defaults to two reflected images
of the map, the meaning of the Tiling value differs
when Mirror is set.
In a single mapping dimension (U or V), a value
of 1.0, the default, shows two copies of the bitmap;
avalueof2.0showsfourcopies;avalueof1.5
shows three copies; and so on. Mirroring in both
dimensions multiplies the effect.
Mirroring and tiling a map
Decal s
Decals are useful for mapping single designs, small
elements such as stickers, or light switches.
A 2D map used as a decal appears only once
and is not repeated as with tiling. Where ver the
decal doesn’t appear on the surface, the surface is
rendered as a basic material, with the component
colors specified at the material level. With map
trees, a decal might appear on top of a different
bitmap or other map type.
Decal mapping
Procedures
To set tiling:
1.
In the Coordinates rollout, make sure Tile is
turned on f or the U or V coordinate, or for
both.
2. Set the Tiling value for the corresponding
coordinates.
IntheMaterialEditor,thesampleslotchanges
to show the tiling value you chose.
The Tiling value is the nu mber of times
the bitmap repeats along the specified
dimension. A value of 1.0, the default, maps
the bitmap exactly once; a value of 2.0 maps
the bitmap twice, and so on. Fractional
values map a fract ional portion of the
bitmap in addition to co pies of the whole
map. For example, a value of 2.5 maps the
bitmap two and a half times.