This document provides an overview of 3D modeling and computer animation. It discusses various 3D modeling methods like primitive, polygonal, and NURBS modeling which are used to create realistic 3D characters. It also describes different types of animation like 2D computer-assisted animation and 3D computer generated animation. Early animation techniques like keyframe animation, cel animation, and rotoscoping are compared to modern CGI methods like keyframing, motion capture, and simulation. Finally, applications of 3D modeling and animation are outlined in various fields like entertainment, medicine, architecture, engineering, forensics, and gaming.

1. 3-D MODELING AND
COMPUTER ANIMATION
Created by-
Saif Rehman Nasir
14BCS0007
Jamia Millia Islamia

2. COURSE CONTENTS
 3-D Modeling
• Introduction
• Methods of 3-D Modeling
• Some applications in real world scenario
 Computer Animation
• Introduction
• Types of Computer Animation
• Methods of animation used earlier
• Methods of animation using computers/CGI
• Applications in real life

3. 3-D MODELING
In the world of computer design, 3D modeling is the
process of developing graphics and images that
appear to have three dimensions.
Designers use various three dimensional modeling
methods to create realistic character models. These
models are typically characterized by their life-like
look and apparent depth .

4. TYPES OF MODELING
 Primitive Modeling
• The simplest way of modeling 3D objects
• Involves the use of geometric basics such as
cylinders, cones, cubes and spheres
• Mathematically defined and precise forms
• Easy for relative beginners

5.  Polygonal Modeling
• A slightly more advanced approach
• Involves connecting line segments through points
,known as vertices, in a 3D space
• One cannot, however, create an exact curved
surface using polygonal 3D modeling technique
• Most effective and precise technique
• Used in creation of either organic(irregular surface)
or hard objects

6.  NURBS Modeling
• Non-uniform rational B-spline modeling(NURBS)
• One of the best ways to create truly curved smooth
surfaces.
• NURBS modeling actually does “bend” the space.
• Commonly used in computer-aided design (CAD),
manufacturing (CAM), and engineering (CAE)
• The control points determine the shape of the
curve.[6] Typically, each point of the curve is
computed by taking a weighted sum of a number of
control points.

7.  Digital Sculpting/Sculpt Modeling
• Manipulating a digital object to push, pull, smooth,
grab, pinch or otherwise
• Uses mesh based geometry
• An object is represented by an
interconnected surface mesh of polygons that can
be manipulated
• Supports sculpting at multiple resolutions on a
single model

8. APPLICATIONS

9.  Entertainment Applications
Video gaming industry is one of the most commonly
recognized application
A number of motion pictures and movies make use of
3D imaging and viewing

10.  Industry
In medical field,to create detailed models of human
body organs.
3D computer aided design (CAD) programs to create
three dimensional models
Architectural design and urban pipeline dynamics
Reconstructing faces of an ancient species or
civilizations

11. COMPUTER ANIMATION
‘To animate’ is to create movement
Animation adds to graphics the dimensions of time,
which tremendously increase the potential of
transmitting the desired information
In otherwords, It is a kind of visual digital display
technology that simulates moving objects on-screen

12. TYPES OF ANIMATION
 Computer-assisted animation
Also known as two-dimensional (2D) animation
Creators drawings either hand drawn or drawn with
the help of a computer using different assisting
appliances
Drawings are placed into different key frames which
outline the most important movements
Computer will then fill in all the " in-between frames",
commonly known as Tweening.
An example is GIF format used throughout this
presentation

13.  Computer Generated animation
Also known as 3-dimensional (3D) animation
Designs an object or character with an X,Y and Z
axis
Computer generated imagery(CGI) used
Animators can break physical laws by using
mathematical algorithms to
cheat, mass, force and gravity rulings.

14. HOW ANIMATIONS WERE DONE BEFORE CGI

15. 1.KEYFRAMEANIMATION
In this
technique a
storyboard is
laid out and
then the artists
draw the major
frames of the
animation. Then
they draw in
the frames in
between.

16. CELANIMATION
In this
technique
each
character is
drawn on a
separate
piece of
opaque paper.
at the
animation
level the
characters are
overlaid on
top of the
background in
each frame.

17. ROTASCOPING
Rotascoping
is a technique
where images
are copied
from a
moving video
into an
animation.
The animator
draws the
motion and
shape of the
object by
referring to
the video .

18. METHODS OF ANIMATION USING CGI

19. KEYFRAMING
"Keyframing"
can be traced
back to
traditional
hand
animation
technique.
The
computer
then
automatically
fills in the
missing
frames by
smoothly
interpolating
between
those
positions.

20. MOTIONCAPTURE
Magnetic
or vision-
based
sensors
record the
actions of
a human
or animal
object in
three
dimension
s. A
computer
then uses
these data
to animate
the object.

21. SIMULATION
It uses the
laws of
physics to
generate
motion of
figures and
other
objects.
Virtual
humans are
usually
represente
d as a
collection of
rigid body
parts

22. APPLICATIONS OF CGI

23. MEDICALANIMATION
A short
educational
film, usually
based
around a
physiological
or surgical
topic,
rendered
using CGI.
Medical
animation is
most
commonly
utilized as an
instructional
tool for
medical
professionals
or their
patients.

24. ARCHITECTUREVISUALIZATION
A computer-
generated
building is
created
along with
landscaping
and
sometimes
moving
people &
vehicles.
Used in
protraying a
township.

25. MECHANICALANIMATION
Creation virtual
models of
products and
mechanical
designs can save
companies
thousands to
millions of
dollars, by
cutting down on
development
costs. Animation
can let
developers
eliminate a lot of
problems that
would normally
require extensive
physical test
models &
experimentation.

26. FORENSICANIMATION
It is a branch
of forensics in
which
animated
recreation of
incidents are
created to aid
investigators &
help solve
cases.
Examples
include the
use of
computer
animation,
stills, and
other audio
visual aids.

27. GAMINGAPPLICATIONS
CGI is
widely used
for gaming
applications
. Every
instance,
more and
more
sophisticate
d games
are being
released
thanks to
CGI.

28. THANK YOU FOR YOUR PATIENCE AND TIME!!