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Rendering Preferences 863
Rendering Preferences
Customize menu > Preferences > Preference Settings
dialog > Rendering tab
On the Rendering p anel of the Preference Settings
dialog, you set options for rendering, such as
the default color of ambient light in rendered
scenes. The many choices available enable you to
reassign the renderers used for production and
draft rendering.
Inter face
Video Color Check group
Some pixel colors are beyond the safe
NTSC (page
3–1074)
or PA L (p age 3–1082) threshold. You can
choose to flag or modify them to acceptable values.
Flag with Black—Flagsallillegalpixelswithblackto
show you the illegality of your image. This mode
teaches you how to make correct colors, instead of
depending on Scale options. Scale options force a
natural discontinuity in the color values. In some
cases, that discontinuity can cause visible
aliasing
(page 3–1001)
.
Scale Luma—Scales the luminance to bring the
color into r ange, and maintains saturation. This
generally ma kes the illegal areas appear darker
than they should b e.
Scale Saturation—Scales the chroma to bring
the color into range, and maintains saturation.
Because this option keeps the brightness levels of
the pixels fairly equal to the unscaled ones, this is
the more useful of the two scale methods.
NTS C/PAL —Determines the standard for the video
color check. See
NTSC (Glossary) (page 3–1074)
and PA L (Glossar y) (page 3–1082) .
Output D ither in g group
Sets output
dithering (page 3–1023) for all file
types.
True Color—Turns dithering on or off for any true
color output device. For 24-bit work, you should
turn True Color on. For p a letted work, you can
turn it off.
Paletted—Turns dithering on or off for any 8-bit
paletted device.
Field Order group
Odd/E ven—Selects the field order of rendered
images when the Render to Fields option is
turned on in the render dialog. Some video
devices require that the e ven field b e first, other
video devices require that the odd field be first.
Determine the correct field order for y o ur video
device. If the video output of your device is
strobing or appears jittery, it may be due to
incorrect
field (page 3–1032) order, try changing
this parameter and re-rendering your animat ion.
Super Black group
Threshold—Keeps the super black (page 3–1112)
threshold above a certain level primarily for
luminance keying.