9

942 Glossary
Fla t M irror
Flat mirror map reflects the ice-cream shop’s interior.
If you want to create a flat, mirrored surface in a
scene, such as a highly polished floor, you must
use a flat mirror reflection map.
Flat mirror reflection maps must be assigned to
your geometry in a specific way, and work only
on flat surfaces.
When you use flat-mirror reflection maps, keep
the following in mind:
The flat-mirror material must be assigned to
connected, coplanar faces on a flat surface of
the object. If your flat-mirror reflection doe sn’t
work, it’s probably b ecause non-coplanar faces
have been assigned the flat-mirror material. This
can happen during the selection process, if one
or more non-coplanar faces are included in the
selection set. It can also happen if you’ve already
assignedthesamematerialelsewhereontheobject
(coplanar faces are two or more adjacent faces that
are on the same two-dimensional plane, such as
the surface of a floor).
If you want to reflect in multiple planes of the same
object, detach each plane into a separate object
before you assign the material.
Flow
A particle system (page 3–990) can contain any
number of sep ar ate particle flows. E ach flow
consists of an isolated chain or sequence of events
(page 3–935),asdepictedinParticle View (page
2–125).Aflowtypicallycontainsaglobal event
(page 3–949) and a birth e vent (page 3–916),and
any number of additional local events (page 3–963).
A particle system containing four separate flows
Fluor escence
Glass on the right has a light green fluorescence.