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.