Graphics Programs Reference
In-Depth Information
Silo contains a i fth selection mode,
Object Mode
. Objects are a useful, if
surprisingly complex, concept. For now, it is best to think of each separate
part of a model, which is not physically connected (e.g., each of a character's
shoes), as a separate object. In Silo, you have to make sure the object is
selected in
Object Mode
before trying to edit it in other selection modes.
Many models will only contain one object, in which case it will be selected by
default.
Selection Styles
Optimizing a modeling working workl ow often involves selecting multiple
elements with some precision, and to ease the process, Silo has three
selection styles:
Paint, Area
, and
Lasso
( Figure 1 5 ).
●
Paint Style
allows you to hold down the
Left Mouse Button
and paint
over additional elements to select anything that comes under the path of
the mouse cursor.
●
Area Style
creates a box as you hold down the
Left Mouse Button
, and all
visible elements in the box are selected (to select through a model, just
hold down the
Middle Mouse Button
or
Scroll Wheel
instead).
●
Lasso Style
works similar to
Area Style
, but allows the user to draw a
shape around specii c elements while holding down the
Left Mouse
Button
(or
Middle Mouse Button
or
Scroll Wheel
to select through and
model). Everything within the drawn shape will be selected.
You can also add to a selection regardless of the style by holding down
Shift
and selecting additional elements (
Shift
Ctrl
to deselect).
To get a feel for the various selection modes and styles, load a custom
primitive (
Create
>
Custom Primitive
>
Base Man With Feet
) and a cube
(
Create
>
Cube
) into a scene and try selecting objects, faces, edges, and
vertices with each of the selection styles.
FIG. 1.5
The three selection styles.
