9

Using Multi-Pass Rendering Effect s 77
Point Trans mittance—
The transmitt ance of the
surface material at the point on the 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 Ma x —Theobject’smaximumluminanceor
illuminance value.
Scene M ax—The scene’s highest luminance or
illuminance value.
Selec tion Information group
Object Na me—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 Rendering
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 certain conditions. Two
multi-pass effects are provided:
• Depth of field (page 2–1383)
Multi-pass depth of field
Top:Focusisinthemiddledistance,nearandfarobjects
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 2–1386)
Above: Motion blur applie d to wings of the flying dragon
Below: Multiple passes appear in successive refreshes of
the rendered frame window.
Tip: Theseeffectsareforthedefaultscanline
renderer. The mental ray renderer (page 3–78) has
its own depth-of-field and motion blur effects.
See Motion Blur with the mental ray Renderer