9

Layer Proper ties Dialog 665
Adv. Lighting panel
Radiosit y Properties group
Exclude from R adiosity Processing—When on,
objectsonaselectedlayerareincludedinthe
radiosity solution. Objects not included in the
radiosity solution do not contribu te to indirect
illumination. If these objects are lights, their direct
contribution will only be used for rendering.
Note: This has the same functionality as the
Radiosity toggle in the Layer List.
Cast Shad ows—Determines whether objects on the
selected layer will cast shadows.
Receive Illumination—Determines whether objects
on the selected layer wi ll receive illumination.
Diffuse (reflective & translucent)—When on, objects
ontheselectedlayeraretreatedasdiffuse(rough)
in the radiosity process.
Specular (reflective & transparent)—When on,
objects on a selected layer are treated as specular
(smooth) in the radiosity process.
Exclude fr om R egather i ng—When on, objects on a
selected layer are excluded from the regathering
process of the radiosity solution.
For more information on the Radiosity Properties
group, see Radiosity Control Panel (page 3–61).
Object Subdivision Properties group
Use Global S ubdivision Settings—When on, the
object’s meshing settings correspond to the global
subdivision settings on the Radiosity Control
Panel. When off, you can change the meshing
settings for e ach object. Default=on.
•
Subdivide—When on, a radiosity mesh is
created for the objects regardless of the
global meshing state. The subdivision that is
performedisdeterminedbytheUseAdaptive
Subdivision switch. When off, the settings
intheMeshSettingsgroupareunavailable.
Default=on.
•
UseAdaptiveSubdivision—Turns adaptive
subdivision on and off. Default=on.
Note: The Mesh Sett i ngs group parameters
Contrast Threshold, Min Mesh Size, and Initial
M esh Size are available only when Use Adaptive
Subdivision is turned on.
Mesh Setting s group
Ma x Mes h Si ze—The size of the largest faces after
adaptive subdivision. Default=36” for imperial
units and 100cm for met ric units.
WhenUseAdaptiveSubdivisionisturnedoff,Max
Mesh Size sets the size of the radiosity mesh in
world units.
MinMeshSize—Faces are not divided smaller than
the m inimum mesh size. D efault=3” for imperial
units and 10cm for metric units.
Contrast Threshold—Faces that ha ve vertex
illuminations that differ by more than the Contrast
Threshold settings are subdivided. Default=75.0.
Initial Mesh S ize—When improving the face shape,
faces that are sm aller than the Initial Mesh Size
are not subdivided. The threshold for deciding
whether a face is poorly shaped also gets larger
asthefacesizeisclosertotheInitialMeshSize.