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70 Chapter 17: Rendering
random sampling. These lights also are not able to
affect the adaptive subdivision of objects.
Include Point Lights in Subdivision—Controls
whether point l i ghts are used when shooting direct
lights. Ifthisswitchisoff,thenpointlightsare
not included in illumination calculated directly at
vertices. Default=on.
Incl ude Linear Lights in Subdivision—Controls
whether linear lights are used when shooting
direct lights. If this switch is off, then linear lights
are not used in calculating the illumination at
vertices. Default=on.
Include Area Lights in Subdiv ision—Controls
whether area lights are used when shooting direct
lights. If this switch is off, then area lights are not
used in illumination calculated directly at vertices.
Default=on.
Include S k ylight—When turned on, skylight is
used when sho oting direct lights. If this switch is
turned off, then skylight is not used in illumination
calculated at vertices directly. Default=off.
Include Self -Emitting Faces in S ubdivision—This
switch controls how self-emitting faces are used
when shooting direct lights. If this switch is
turned off, then self-emitting faces are not u sed
in illumination calculated at vertices directly.
Default=off.
Mini mum S elf-Emitting S ize—This is the minimum
size that a self-emitti ng face will be subdivided
when calculating its illuminat ion. Minimum size
is used rather than the number of samples to allow
larger faces to be sampled more than sma l ler ones.
Default=6.0.
Light Painting Rollout (Radiosity)
Main toolbar > Render Scene > Render Scene dialog
> Choose Default Scanline Renderer as the active
production renderer. > Advanced Lighting panel > Select
Advanced Lighting rollout > Choose Ra diosity from the
drop-down list. > Light Painting rollout
Rendering menu > Render > Render Scene dialog
> Choose Default Scanline Renderer as the active
production renderer. > Advanced Lighting panel > Select
Advanced Lighting rollout > Choose Ra diosity from the
drop-down list. > Light Painting rollout
The light painting tools in this rollout allow you
to touch up shadowed and illuminated areas
manually. You can use these tools to touch up
shadow and light-leak artifacts without hav ing to
do additional remodeling or radiosity processing.
Using Pick Illumination, Add Illuminat ion, and
Remove Illuminat ion, you can add or remove
illumination on one selection set at a time.
To use the light paint ing to ols, you must first select
objects, and then select a particular light painting
tool: Pick Illumination, Add Illumination, or
Remove Illumination. The active button is
highlighted in yellow, and when it is over a selected
object, the cursor changes to a crayon icon for
the Add and Remove Illumination tools, or to an
eyedropper icon for Pick Illumination.
Youcanpick,add,orremoveilluminationthrough
objects. For example, if you select the floor as
an object, you can work under the bookshelf, by
working through it. Once in light painting mode,
you can’t select another object unless you cancel
the operation.
Interfa ce