The PolyTrans-for-Softimage plug-in system has direct access to a very powerful set
of geometry and scene processing algorithms that can be applied to the 3D data as it is
passing between the PolyTrans import/export converters and the Softimage
These processing functions allow the PolyTrans-for-Softimage user to easily and
automatically apply all of the common stand-alone PolyTrans geometry and
scene processing functions but without having to execute them by hand or
work in the stand-alone PolyTrans software itself.
Alternatively, if you do not want to use this automatic system you could
import a file into the stand-alone PolyTrans,
perform the processing operations by hand, then export out a dotXSI file to
be imported into Softimage.
Geometry Processing Options Dialog Box
Resize Model to the Viewport Extents
If this checkbox is enabled (check-marked) then the camera is resized to
encompass the entire model.
Add Lights to Scene if None
If this checkbox is enabled (check-marked) then 2 point light sources will be
added to the final scene. The lights are added in the front-left and front-
Perform "Polygon Processing" On Model Before Exporting
If this checkbox is enabled (check-marked) then the converter will apply
processing functions to the polygon data. Press the "Options" button to
access the full list of processing options.
These polygon processing functions allow polygon vertices to be welded
together, normals unified, auto-smoothing to be performed, redundant
coordinates to be deleted and triangles merged back into n-sided polygons.
For a technical description of each polygon processing function, press the
Help button shown on that dialog box.
Compress Children Objects of Grouping Nodes to Single Object
This is a most useful batch conversion processing function, in particular
when you are converting from a CAD-based file format (such as IGES,
SolidWorks, Solid Edge, etc) and need to create the dotXSI file with the
least number of objects and an optimum hierarchy. This function collects
together all objects situated under a "yellow" or "red" folder in
PolyTrans/NuGraf (grouping nodes) into a single object. This can greatly
reduce the number of objects in a scene prior to re-export. This is
particularly true for CAD data which is often broken down into smaller sub-
components (called faces) rather than transferred as whole objects. For a
technical description of this function, press the Help button shown on its
option dialog box.
Hierarchy Optimizer # 1 and Hierarchy Optimizer # 2
These options provide methods to remove redundant hierarchy nodes from the
current scene. In most cases you will not need to enable these options
because (1) they are provided on some of the import converters already, or
(2) they are provided in the "Compress Children Objects of Grouping Nodes to
Single Object" option dialog box too, (3) most scenes don't need to have
their nodal hierarchy optimized. Usually VRML and DirectX imports benefit
from enabling these options.
Optimzier # 1 removes runs of empty folders, as well as folders with no children.
Optimizer # 2 is simpler, deleting empty folders which only have 1 geometry
object in them. The second optimizer is useful if you batch import a file and
find that there are a number of yellow folders (one per imported file) with
one a single object in each folder.
Perform "Polygon Reduction" On Each Model
If this checkbox is enabled (check-marked) then the converter will apply the
global polygon reduction algorithm to the imported polygons just prior to the
start of the dotXSI file export process. The algorithm allows the number of
polygons in the scene to be greatly reduced. For a technical description of
this function, press the Help button shown on its option dialog box.
Apply Global Transformation to Exported Geometry
If this checkbox is enabled then a general purpose 4x4 transformation matrix
will be applied to each exported scene, with specific limitations. This
option will allow you to, for example, rotate all the exported scenes 90
degrees around one axis, or scale all the scenes uniformly by a specific
amount. For a technical description of this function, press the Help button
shown on its option dialog box.
Create Backup File When Writing the Intermediate Temporary File
This option allows the program to create a backup file if a file is about to
be overwritten with a new version. For example, if the program is about to
output a new file called "file.xsi" which already exists on disk then the
program will first rename the current version to "file.bak" before writing
the new version. If backup copies of the file already exist from previous
executions of the translator program then the backup file extension will use
sequential numbers (for example, "file.bk1", "file.bk2"). Thus, successive
backups will use the file extensions: .bak, .bk2,. bk3, etc. If this option
is not checkmarked then no backup files will be made.
Modify Polygon Triangulation Options
Pressing this button will display the global options will control polygon
triangulation. In those cases when a N-sided polygon must be converted to
triangles, up to 3 different triangulation routines can be enabled inside the
core Okino software. For a technical description of this function, press the
Help button shown on its option dialog box.
Modify Texture File Search Paths Directories
Pressing this button will display the file search paths dialog box. If you
want to inform the core Okino software where your bitmap images are located
(for automatic bitmap conversion), then press this button and add another
file search path in the first tabbed dialog panel.