Polygonal modeling is the process of creating a digital depiction of 3D objects using a geometric mesh comprised of vertices, edges and faces. Here are processes which every company offering 3D services must master.

1. Polygonal 3D Modeling – Some processes you must be
acquainted with
Polygonal modeling is the process of creating a digital depiction of 3D objects using a geometric
mesh comprised of vertices, edges and faces. The below processes are those which every
company offering 3D services must master.
Extrusion
This is the method by which geometry is added to a polygon primitive. Through the process of
extrusion, experts in professional companies manipulate 3D mesh either by extruding the surface
out alongside its external normal or by subsiding a face on itself.
In extrusion process, 4 new polygons are created for bridging the opening between its beginning
and finishing positions. Extrusion is also possible for edges and during this process, duplication
of edges takes place which can be rotated in any desired direction. This creates a new polygonal
face.
Subdividing
The 3D modeling service providers use subdividing for selectively or homogenously adding
polygonal resolution to the concerned model. Some extent of subdivision must be there for
creating a finished model as any polygonal model normally begins with very less faces and low-
resolution primitive.
With uniform subdivision, surface blocking can be eliminated and evenly smoothened. Selective
placement of extra edge loops is required normally in enhanced body parts like elbows, knees,
eyes and lips of characters.
Read more about SketchUp- How can you effectively use it for 3D modelling?
Chamfers or bevels
You may have heard about bevel if you are in anyway related to woodworking, industrial design
or engineering niches. Edges in a 3D model are sharp infinitely. This however can never happen

2. in the actual world. If you inspect carefully the objects around you, it can easily be found that
almost all edges have some or other type of roundness or unevenness to it. Charmers or bevels
consider this fact with peek relevance and reduces the severity of model edges.
Refining or shaping
Refining or shaping is many times also referred as pulling and pushing of vertices. Most of the
models need certain level of refinement that has to be done manually. While refining, the service
provider moves each vertices for fine-tuning the surface contours.
Refinement is the longest process for any services provider and according to the popular
companies offering related services, nearly 90% of the time is spent for refining. In fact this is
the process that immensely influences the output quality.
Being acquainted with the above processes and gaining proficiency in them can surely help any
3d modelling service provider to stay unbeaten in the increasing competition.