B UILDING & M ANAGEMENT
V OLUME 3 I SSUE 3 S EPTEMBER - D ECEMBER 2019
E VOLUTION OF DRAWING AND SKETCHING WITH THE USE OF ZBRUSH AND THE LIVE BOOLEAN TOOL
A. B ERROYA E LOSUA , M. E CHEVARRÍA A GUIRRE AND D. A RTEAGOITIA G ARCÍA (2019). B UILDING & M ANAGEMENT , 3(3): 34-41
and other forms of selection beyond a curve line, so the
possibilities of creation are wide.
to maintain clear naming conventions and organization to
facilitate an easier use. Figure 7 exhibits a 3D elements
library in ZBrush which consists of numerous previously-
modeled objects. These objects can be added to the primary
volume, and, through the use of Kitbashing, used to modify
and enlarge the final form.
Fig. 7: Example of 3D elements library.
In this example, shown in Figure 8, the objects from the Figure
7 3D elements library were combined and manipulated to
produce a new volume. The objects that were previously
created with the "Trim" tools and deformers (Figure 6(b))
became the wings for this new model. This Kitbashing turned
the wing and various mechanical elements from the library into
a ship prototype.
Fig. 5(a) and 5(b): Example of the use of the Trim tool.
From this point on, the user can always assemble shapes that
have already been created and place them with small
deformations of scale, position and size to suggest new
volumes. For example, Figure6(a) shows a duplicate of the
original shape that has been made in "symmetry" mode.
Adding this piece to a bigger copy of the initial piece resulted
in Figure 6(b). The result adds volume to the original shape
and saves considerable design time. Again, this process is
meant to be a quick and experimental way of working, and
these tools help enormously in the process.
Fig. 8: Ship prototype created through Kitbashing, deformers and Trim tools.
Now is the time to use the Live Boolean tool.
This tool is very similar to those used in other modeling
programs, such as 3DS Max, Maya, or Blender. Figure 9
shows two steps of the process to illustrate how the tool works.
When two 3D objects are intersected (Figure 9(a)), the
Boolean process can be used to subtract volumes from each
other. It is possible to work with either the resulting piece or
the pieces which were subtracted.
Fig. 6(a) and 6(b): Addition of symmetric duplicate to create interest.
In order for Kitbashing to be effective, one must compile a 3D
elements library. This library consists of tools and 3D objects
which were previously loaded into the program. It is important
Most programs require significant time to perform the
necessary calculations to display the results of the Boolean
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