3 DIMENSIONAL GRAPHICS
In every image whatever you intend to draw, there must be a sketch.
This principle is also applied to that of the 3D Graphics artist too.
Three-Dimensional Image, or 3-D image, flat image enhanced to impart
the illusion of depth. Humans perceive the world and the objects in it
in three dimensions—breadth, width, and depth. This seemingly simple
phenomenon is the product of a complicated set of interactions
between our eyes and our brains that is still not entirely understood.
Our eyes are spaced about 6 cm (2.5 in) apart, which causes each eye
to receive a slightly different image. The brain fuses these two images
into a single 3-D image, enabling us to perceive depth. This way of
seeing is called binocular vision, or stereoscopic vision.
Flat images, such as illustrations, photographs, films, and graphics on a
computer screen, can be manipulated with any of several techniques
to create the illusion of depth. Such techniques make the objects in
the images appear to pop out of the paper, film, or screen on which
they appear. Once the realm of entertainment novelties, such as
movies and comic books, 3-D images today have applications in
medical technology, industrial design, and high-tech virtual training
programs for surgeons, pilots, and astronauts.
SIMPLE ILLUSTRATION OF HOW GRAPHICS IS PERFORMED
They are basically just 3 steps to get this done without confusion, but
you have to set your mind in achieving this, total concentration is very
essential when designing pure graphics, let’s make a Dunlop tire an
example.
The following are the steps involved
1 Wire Frame
2 Texture
3 Shading and reflection
WIRE FRAME:
The process of creating a realistic three-dimensional computer graphic
is called rendering. First, the computer artist creates a wire frame
model of the object—in this case a rubber tire—and specifies its size
and orientation. In a wire frame, the surface of an object is
represented as a series of polygons. Each point where lines meet on
the surface of the object is called a vertex and is represented in the
computer by its spatial coordinates. Since the straight edges of
polygons do not create smooth surfaces, detailed models require an
extremely large number of polygons to create an image that looks
natural.
TEXTURE:
Next the computer artist adds layers of detail to the wire frame
model, such as color and texture, to give it a more realistic
appearance. Here, the artist has added color, tread pattern, lettering,
and lines to suggest the tire’s molded rubber rim. The computer
calculates how each layer of detail should appear at every vertex on
the surface of the model, and then applies the layer to the model's
contours like wallpaper.
SHADING AND REFLECTION:
Finally, the artist specifies the source, direction, and intensity of the
light shining on the object. The computer uses this data to calculate
how each vertex on the surface of the object will be shaded and how
the object’s shadow will be cast in the background. The artist has also
applied additional layers of texture to enhance the roughness of the
tread and the smooth, reflective quality of the tire’s inner surfaces.
Don’t get exhausted yet, you need to be focus to get things done this
way, majority would continue asking how exactly we insert this effect
to make such sunlight and every expression on the rubber wheels. You
don’t need to be an Artist just follow the basic steps.
It takes little stress to design something like this once you know these basic steps.
I designed Olamide, an upcoming artiste we all know well with this basic step and it appears
this way...
Please, stay tune and always remember to comment to ask questions. I promise to update my blog so as to enlighten you more on how to design a 3D Cartoon-like image as you've always wanted.
This image can be used for facebook profile pictures, twitter, BBM display pictures and so on...
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