2011

Table Of Contents
photon map A technique to generate the indirect illumination effects of
global illumination used by the renderer. When it calculates indirect
illumination, the renderer traces photons emitted from a light. The photon
is traced through the model, being reflected or transmitted by objects, until
it strikes a diffuse surface. When it strikes a surface, the photon is stored in
the photon map.
photorealistic rendering Rendering that resembles a photograph.
pick button The button on a pointing device that is used to select objects or
specify points on the screen. For example, on a two-button mouse, it is the
left button by default.
pick points Clicking and acquiring a point on an object in the drawing.
pick-first The selection of objects before an action macro or command is
issued.
pick-first set A selection set of objects that are selected prior to the execution
of an action macro or a command. See also pre-selection set.
plan view A view orientation from a point on the positive Z axis toward the
origin (0,0,0). (PLAN)
planar face A flat face that can be located anywhere in 3D space.
planar projection Mapping of objects or images onto a plane.
planar surface A flat surface that can be located anywhere in 3D space.
(PLANESURF)
playback The process of executing the actions stored in a previously recorded
action macro.
pline See polyline.
plot style An object property that specifies a set of overrides for color,
dithering, gray scale, pen assignments, screening, linetype, lineweight,
endstyles, joinstyles, and fill styles. Plot styles are applied at plot time.
Glossary | 2175