8

76 Chapter 17: Rendering
• Luminance—The amount of energy leaving a
surface.
•
Il lumina nce—The amount of energy arriving at
asurface.
Point—Theluminanceorilluminanceatthepoint
on the object where you clicked.
Point R ef lecta nce—Thereflectanceofthesurface
material at the point on the object where you
clicked.
Point Trans mittance—The transmittance of the
surface material at the point on t he object where
you clicked.
Object Avg—The amount of light intensity for the
object as a whole.
Object M in—The object’s minimum luminance or
illuminance value.
Object M ax —Theobject’smaximumluminanceor
illuminance value.
Scene Max—The scene’s highest luminance or
illuminance value.
Selec tion Information group
Object Name—The name of the selected object.
Object A rea —Theareasizeoftheselectedobject.
Point Location—The X,Y,Z coordinate of the point
on an object you clicked.
Multi-Pass R endering
Effects
Create panel > Cameras > Target button or Free button >
Parameters rollout > Multi-Pass Effect group
Multi-pass rendering effects use multiple
renderingsofthesameframe,withslightcamera
movement between each rendering. The multiple
passes simulate the blurring that film in a camera
would register under cer t ain conditions. Two
multi-pass effects are provided:
•
Depth of field (page 2–1228)
Multi-pass depth of field
Top: Focus is in the middle distance, near and far objects
are blurred.
Bottom left: Focus on near objects, far objects are
blurred.
Bottom right: Focus on far objects, near objects are
blurred.
• Motion blur (page 2–1230)