9

Shockwave 3D Scene Export Options Dialog 583
Enable Toon and S DS—
When turned off, this
option prevents the writing of geometry data used
by some of the more advanced Shockwave 3D
technologies, and th us reduces the overall file size.
If turned off, Toon and Subdivision Surfaces (SDS)
data is not incl uded in the export file, which means
that the Toon and Subdivision Surfaces modifiers
cannot be applied to the model in D irector. A
model missing this geometry data can be used with
all other Shockwave 3D technologies, however.
Leavethisoptionturnedonunlessitisexpedient
to reduce the size of the W3D file.
Note: There is no way to tell if a W3D file was
exported with this option enabled or disabled
until you try to apply the Toon or SDS modifiers
in Director. For this reason, if you turn off this
option, use a special naming convention to
indicate that a model doesn’t have the Toon or SDS
data in it.
Light r esour ces—Expor ts all lights in the scene to
the Shockwave 3D file.
Turning this option off doesn’t do anything unless
the scenegraph hierarchy option is also turned off.
The only time you should turn this option off is
when export ing just the a nimation, geometry, or
texture data in a scene.
Came ra—Determines the vie wpoint used for the
scene in Director. This option defaults to Active
Viewport, but if any cameras exist in the scene,
you can choose one from the drop-down list.
Note: In order to preview or export an animated
camera, you must select that c amer a from the
list. Selecting Active Viewport with an a nimated
camerawillnotexportthatcamera’sanimation.
Compression Settings group
The Shockwave 3D file contains all scene assets
in a proprietary compressed and streaming
format. You can control the order in which data
streams with the user proper ties. The amount
of compression of the scene assets is set by three
controls: Geometry Quality, Texture Quality, and
Animation Quality. The controls have values
that range from 0.1 to 100.0, with higher va lues
giving less compression and better quality (a more
faithful representation of the original model).
A va lue of 100 means that the scene assets will
be represented at the b e st quality p ossible, but
w ith some deg ree of compression stil l present. It
does not represent the value at which compression
does not occur. Also, the compression controls
do not have a linear scale, so a setting of 20.0
doesn’t necessarily mean that the quality level of
the resulting data is twice as good as that produced
w ith a setting of 10.0.
Geometry quality—Controls how much the scene
geometry data (such as vertex positions and
normals and texture coordinates) is compressed.
The default of 25.0 generally produces a good
compromise between data accuracy and space
savi ngs.
Tex ture qualit y—Controls the compression of
textures (images) in the scene.
Animation quality—Controls the compression of
animation data in the scene. Higher compression
levels (lower quality) tend to remove the finer
motions authored in the scene, especially
motion-capture data, while occasionally
introducing small noise artifacts.
Note: You might need to use larger values of the
Animation Sampling Interval control (b elow) along
with g reater values of this setting to minimize
thefilespaceconsumedbyanimationwhilestill
maintaining acceptable motions.
Texture Size Limits group
The Texture Size Limits setting lets you reduce
thesizeoftheW3Dfilebylimitingthesizeofthe
texture maps in the export.