A mesh consists of vertices, edges, and faces that define the shape of a 3D model. Common modeling techniques include primitive modeling using basic shapes, box modeling using subdivision and extrusion tools, and extrusion modeling where a 2D shape is adjusted and extruded into a 3D shape. Sketch modeling is useful for quick, low-detailed models. 3D scanners can also be used to instantly create highly detailed models based on real-world objects but the technology is currently very expensive.

1. MESH CONSTRUCTION

2. A mesh of polygons is a group
of vertices, edges and faces
that defines the shape of a 3D
model. The faces of the model
consist of quadrilaterals and
triangles. It is very common to
build other meshes using the
tools on the modelling
program.
POLYGONAL MODELLING
http://www.ozcot.com/images/mod_cat.jpg

3.  Primitive modelling is when
basic objects are you to
make models and as you can
see on right side on one of
my earlier designs I used
different shapes consisting
of cylinders and cubes to
make an interpretation of a
camera
PRIMITIVE MODELLING

4. The more commonly used for
constructing models is known
as box modelling, there are
two tools that are used for box
modelling which are:
The Subdivide Tool
The Extrude Tool
Here is an example of box
modelling being put into place
when designing a simple tool
BOX MODELLING

5.  The second commonly used
method would be the
extrusion modelling which
consists of a 2D shape which
is re- adjusted to fit a image
taken and then is extruded
to make a 3D shape. In
these screenshots taken it
show a rifle each part being
seperated, extruded then put
back together to create the
3D rifle.
EXTRUSION MODELLING

6.  Then finally we move onto
modelling software that is
referred to as sketch
modelling, and this used
most commonly for quick low
detailed models as you can
see by this rhino screenshot
it show how sketch
modelling can be quite
useful
SKETCH MODELLING
http://images.gamedev.net/features/reviews/zbrush31/figure1.jpg

7.  And now move onto a more
recently found technology
called 3D scanning and
works incredibly well when
creating highly detailed
models based off real world
object almost instantly as
this tech is a very recent
modelling device it is very
expensive to purchase as you
can see it being used to help
design the zombie models
for World War Z.
3D SCANNERS
http://www.3dfocus.co.uk/wp-content/uploads/2013/08/Artec-WWZ-
2h3D_WWZ_CostumeScans_Artec3.jpg