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SEGA 3D Editor 1.72US ReadMe■ Index■ Introduction■ Restrictions■ Basic Operation■ Input Files■ Using 3D Editor■ Introduction
The 3D Editor opens 3D data files in the SEGA3D and DXF formats and canaccess stored 3D images from any direction. It can also paste textures ontoor add colors to the polygonal faces of these images and store the result in
SEGA3D format.

■ Restrictions
The following SEGA development target boxes work with version 1.72US:
1. SATURN Target Model-S Graphics Box

2. SATURN Cartridge Development System (abbr. CartDev) US

Please refer to the target manuals for precautions when connecting thetarget box.

■ Basic Operation
The following screen is displayed when the application is started up.
Select the target box to be connected and click "OK".
Also, the TV screen size may be modified as necessary.
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■ Input Files
The 3D Editor Open dialog box only lists files in SEGA3D or DXF formats anddoes not display text files in other formats.

■ Using 3D Editor◆ File Menu

▲ Open
Displays an Open dialog box with a pop-up menu for specifying thefile format.
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The files specified on the pop-up menu are displayed as a list. Adjacentpolygons can be combined during read-in by checking off the "Combine
Triangular Polygons" box. Other features are similar to the Open menu
for other applications.

▲ CloseCloses the open window. (The close box on the window has the samefunction.)
A dialog box will ask whether or not to save the changes made to a file.
To save, click the "Save" button in the dialog box. A file may also be
saved using the "Save" function under the File menu. (Use thisfunction when closing the last of multiple windows, when thecommand key () and option key are pressed together, or when quitting
the application.)▲ SaveSaves changes that are made to the open window. (The file is replaced.
It is not modified.)▲ Save As...
Displays a dialog box with a pop-up menu for specifying the file format.
Specify the file format using the pop-up menu. If the format that isselected is different from the original format, the program converts thefile and then saves it.

3

▲ Revert
Reverts to the contents previously saved.
▲ Environment Settings (Preferences)
Displays the following dialog box. Set each item.

• Combining Triangular Polygons: Select the default setting for "Combine
Triangular Polygons" found in the dialog box that appears when "Open"is selected from the File menu. This box is easily overlooked, so it isconvenient to set the desired default under Preferences.
• Mac Display Settings● Texture: When "On", textures pasted on materials are displayed as
images on the Macintosh similar to that displayed on a TV screen.
● Gouraud Display: When set to "On", an image close to the TV screen
is displayed on the Macintosh when Gouraud shading is selected.
Set to "Off" to facilitate operation during editing.
• Unit Settings● Auto Rotation Angle: Sets the rotation angle for a 3D image by using
the tools described below.

4• Y-axis automatic rotation tool

• X-axis automatic rotation tool

• Z-axis automatic rotation tool

● Vertex Move Rate: Sets the move rate of the vertex data modification
function.
• Wire Frame:● Color: Sets the wire frame color.
• Background:● Color: Sets the background color.
● Paste On Background: Sets the image data to be pasted onto thebackground.
▲ QuitEnds the application. Closing an unsaved file will call up a dialog box
that asks whether or not to save the changes made.

5◆ Edit Menu
This menu is not used frequently in the 3D Editor, but it is very effective forcopying and pasting when setting materials. "Undo" is useful whencombining triangular polygons manually.
■ Caution:"Undo" is not functional for many of the model or polygon editing tools.

◆ Scene Menu

▲ Camera Settings
Currently not supported.

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▲ Light Source Settings
The following window is displayed. Specify the position of the lightsource.

Click on an area of the sphere to set it as the light source. Drag to adjust
the position. Move between the front and back by dragging off the edgeof the sphere and then dragging back onto it.
The program allows selection of parallel or point light sources for the
sphere type.
▲ WireframeThis is a toggle menu. When this menu is checked off, a wireframe of
the 3D image is displayed.
▲ Hide Hidden Surfaces
This is a toggle menu. When this menu is checked, the hidden surfacesof the wireframe display are hidden. Areas that are covered by otherpolygons are also hidden.
▲ Flip Entire Image
This is a toggle menu. When an image is displayed from a DXF orsimilar file, the specifications for its surfaces are sometimes inverted.
Checking this menu will display them as normal 3D images.
▲ Gouraud Shading
Flat Shading
Flat Color
Custom Color
Transparent

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This is a check menu for selecting one of the above. Gouraud shading,flat shading and flat color are all shading methods. When these are
selected, the shading methods set for individual materials are ignored.
Custom color is displayed with the shading method set for theindividual material.
When "Transparent" is selected, a wireframe is automatically set and theimage is displayed only as a wireframe.
Gouraud shading may appear similar to flat shading when displayed on
a Macintosh; however, it is displayed as Gouraud shading on the
SATURN.
▲ Pause Target
This is a toggle menu. When this menu is selected, no transfers are
executed to the target.
▲ Enlarge
Enlarges the scene window image.
▲ Reduce
Reduces the scene window image.
▲ Zoom
Displays an image according to the zoom selection from a hierarchicalmenu.

◆ Window Menu

▲ Material Settings
This is a toggle menu that turns the settings window for materials on
and off. Select this menu item to display or activate the material settings
window.
8

▲ Material List
This is a toggle menu that turns the material list window on and off.

The material list window displays all the material names currently
displayed in the scene file. Double click on a material name to replace
the material of a selected polygon (via the polygon selection tool) locatedin the scene window.
Shift and click using the polygon select tool in the scene window to selectmultiple polygons. The same material can be pasted to multiple
polygons at once by using this method.
▲ Model List
This is a toggle menu that turns the model list window on and off.

9

The model list window displays all the model names currently displayedin the scene file. Double click on a model name to switch the display
setting between on or off.
Shift and click to select multiple models. This enables the user to selectdisplay setting on or off for multiple models at once.
▲ Texture List
The following Open dialog box appears. Select the folder which contains
the texture to be left open.

The textures are displayed in a list window as shown below. Whensetting materials, drag and drop to paste textures. Users may find it
useful to create custom icons on folders because these icons are used in
the list. Double-click on the window to open the texture window and toview textures.

▲ New Window
When viewing a single 3D image from file, other windows can be
opened to view the image from various directions.
▲ Window List
A list of currently displayed windows appears at the bottom of the New
Window menu. The window selected on this menu appears at the very
front.
10◆ Texture Menu

▲ Display Texture
Opens a Texture window that displays texture image files (PICT, DGT,
RGB).

▲ Enlarge
Enlarges the image in the Texture window.
▲ Reduce
Reduces the image in the Texture window.
▲ Zoom
Displays the image according to the specified zoom.
▲ GridDisplays a dot-by-dot grid when enlarged by a power of 4 or more.
▲ CellDisplays a grid for each cell (8 dots).

11◆ Tool Palette and Scene Window▲ Scene Window
3D images are displayed in a scene window as shown below:

12

▲ Tool Palette
The tool palette includes:• vertical/horizontal move tool

• front-to-back/horizontal move tool

• Y-axis rotation tool

• X-axis rotation tool

• Z-axis rotation tool

• scaling tool

• polygon select tool

• combine triangular polygons tool

Select a tool, move the mouse to the scene window, then click and drag.

The scene window has menus for specifying image views and to display
each model.

13

Shift + click while using the polygon select tool to select multiple
polygons. This enables the user to add material information tomultiple polygons.

The combine triangular polygons tool combines 2 adjacent triangles suchas those illustrated in the figure below. First, move the mouse to thefirst triangle and drag the mouse with the mouse button depressed, on
the adjacent triangle. When the mouse is moved on top of a second
polygon that can be combined with the first polygon, the 2 polygons are
simultaneously displayed with a selection mark. Do not select polygonsthat are not on the same plane since they cannot be combined.
If the Option key is pressed while executing the above, polygons that are
not on the same plane can be forcibly joined. Note that in this case, 4sided polygon data will be saved, but the exact 3D information will be
lost.

If a triangular polygon is selected, press Option + Command () key
simultaneously to display overlapping vertices.

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▲ Coordinate Settings Window
Select a polygon in the scene window, then by using Control + click,display the Coordinate Settings window. Use this window to modify
vertex data.

Control + click selects the closest vertex of the polygon. The desiredvertex may also be selected from the same polygon by using theCoordinate Settings window. The same vertex can be optionally selectedin the coordinate settings window. Vertices can be modified by inputting
the numerical value directly, or by modifying the vertex change rate in"Environment Settings".
The modified vertex coordinate data becomes fixed when the Set button
is pressed, or another vertex is selected. The setting can be canceled bypressing the Cancel button. Click on the Redraw button while modifying
to preview the operation.

■ Caution:"Undo" is not functional for many of the model or polygon editing tools.

15

▲ Material Settings Window
Materials are set in a scene window as shown below:

Select a polygon from the scene window by using the polygon select tool.
The selected polygon is displayed in the box, as shown above, along withthe associated model name “BB” and its polygon number.

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Click on the zoom box in the upper-right to reduce the window size.

Materials are stored by their names. The materials set for each polygon
are set in the materials pop-up menu. When a material is modified,the change is reflected in all of the polygons set with that material.
Materials for each polygon can be switched by using the materials pop-up
menu and selecting a material that is saved in a file. This pop-up menu
can also be used to add new or rename materials.
The material settings are reflected in the polygons only after the Set
button is clicked. Specify the desired range in which to apply thematerial settings by selecting an item from "Apply".

17

▲ Color Selector Dialog
Click the polygon displayed in the Material Settings window to display
the Color Selector dialog box. Use this dialog box to select non-textured
color.

To set Gouraud colors for a polygon, first, click on one of the rectangles
labeled (A), (B), (C), and (D) to display a Color Selector dialog box thatis similar to that above. Then, adjust the Color Selector.
Note that Gouraud color can only be used when the "Use User Gouraud"
check box is checked off.

The level control indicated by the gray level is the Gouraud offset.
3D Editor outputs the polygon color calculation results based on theabove discussed Gouraud color and the set offset value.
*There is no SATURN function that can set the Gouraud offset. If thevalue set here is used on the SATURN, it is also necessary to support
the setting at the program level.
The items set under "Polygon" is applied to one polygon. The contents
set here can be changed for each polygon, regardless of the material
settings.
Use "Vertex Chng" to change the order of the polygon vertices. Thisfunction is mainly effective when the direction of texture data cannot be
specified as desired.
Check off the "Use Xprnt Col" box under "Material Settings" to display
black ($0000) texture data as transparent in color.

18◆ Option Menu

The Option menu appears on the tool bar when the Model List window
is activated.
▲ Show All Models
Displays all the models that appear in the scene file.
▲ Show Specified Only
Displays specified models only; all others are not displayed.
▲ Show Non-Specified
Displays all models that are not specified; specified models are notdisplayed.
▲ Select All Models
Selects all models.
▲ Clear SelectCancels all selections.

193D Editor 1.72E: Release Notes■ Information on version upgrade from 1.71E →1.72E◆ The texture folder can now be set via the network and restarted
successfully.
Note: All previous settings are lost. The selection of a folder via
network is not recommended since the connection may fail. We
recommend loading the system with all necessary folders before
starting the process.
◆ The sides of polygons that should be visible can now be seen under the
special criteria.
■ Restrictions
Version 1.72E supports the following SEGA Development targets:
1. SATURN Target Model-S Graphics Box
2. SATURN Cartridge Development System (abbr. CartDev)
Refer to the target manuals for precautions when connecting the target box.
■ Power PC compatibility
Runs in Power PC Native Mode.