3D modeling is the process of developing a mathematical representation of a three-dimensional object using specialized software. 3D modeling has its origins in stereoscopy and stereographic photography from the 1840s but saw increased usage with the development of 3D film and IMAX technologies in later decades. Today, 3D modeling is used across industries like engineering, product design, architecture, and medicine to create realistic digital representations of objects that can be rotated, analyzed, and interacted with virtually.

1. VIRTUAL REALITY

2. 3D modelling is a manner of creating 3 dimensional objects.
Or
3D modelling is the process of developing a mathematical
representation of any three-dimensional surface of an object (either
inanimate or living) via specialized software. The product is called
a 3D model.
3D MODELING

3. HISTORY OF 3D MODELLING
Before 3D
• 2D Modelling
• A shape that only has two dimensions and no thickness. Squares, Circles,
Triangles, etc. are two dimensional objects. Also known as "2D".
 Uses Height & Width.
The history of 3D dates back to 1844 when David Brewster introduced the
*stereoscope a device used photographic images.
*A device by which two photographs of the same object taken at slightly
different angles are viewed together, creating an impression of depth and
solidity.

4. 1855 -The Kinematascope (Stereo Animation Camera) is invented.
1960s - in the history of 3D technology, a new technology known as Space-Vision 3D
was released.
1970 - Stereovision, a new 3D technology was developed.
1990s - quite recently, many films were released in IMAX 3D. Some of the most
popular were “Into the Deep" and , "Wings of Courage".
2010 - Big push towards 3D television..

5. Why 3D?
 Realistic, easy, and quick
 An image speaks a thousand words
 Better for marketing and project approvals
 Impact on project execution
 Boon for interior designers
 Measurements
 Fewer instructions and no language barriers
2D Image
3D Image

6.  Two dimensional modelling is Complex.
 Drawing devices in 2D is often a challenge and the nodding
process is far more difficult.
 2D modelling needs computers with a larger amount of
memory space.

7. .
 The first commonly accepted 3D tech
 These glasses, when used with special
photographs called anaglyph images,
create the illusion of depth. Using a red
and blue lens ‘tricks’ the brain into
seeing a 3D image

8. USE OF 3D MODELLING
3D modelling capabilities allow you to create 3D images that are as
realistic as the actual objects. just like a physical model, they can
be rotated on the screen.
 Categories of 3D models:
Wire-frame models
Surface models
Solid models
For general 3D drawings, wire frames and surface models are used. You start
with a wire-frame model and then fill in spaces with 3D surfaces to make it
more realistic.

9. 3D vs 2D
 Flexibility.
 Ease of rendering.
 Accurate Photorealism.
 3D images add the perception of depth. A 2D image, on the other
hand, has only height and width.
 The main difference between 3D modelling and 2D drafting is that
buildings are modelled rather than drawn.
Almost all 3D models can be divided into two categories.
 Solid
 Shell/boundary

10. 3D PARAMETRIC MODELLING
 Primitives
 Transformations
 Aligning
 Cloning
 Modifying primitives.

11. USES OF 3D
Medicine:-
3D modelling is used to recreate parts of the human anatomy to help doctors see
and plan out an operation.
Engineering:-
Engineers use 3D models to show what they have designed so it can be constructed
easily.
Product design:-
3D modelling is used to show what the final product will look like before it is put
in to production.
Architecture:-
Architects used 3D models of Structures to show builders what they are building
and how to built it.

12. 3D DEVELOPMENT SOFTWARE
Maya (Autodesk)
3ds Max (Autodesk)
Softimage (Autodesk)
ZBrush (Pixologic)
Mudbox (Autodesk
Modo (Luxology)
Blender (The Blender Foundation)
LightWave 3D (NewTek)
LightWave 3D

13. STEP IN A FUTURE
3D-VIRTUAL REALITY EVOLUTION

14.  A variation of visualizing
complete computer
generated worlds.
 Virtual reality, drones and self-driving cars begin to enter into reality and
2016 will be the year of changing, especially for the 3D viewers market.

15. Google Cardboard Oculus VR
Samsung Gear VR HTC Lives

16. ADVANTAGES OF 3D COMPUTER MODELLING
 Quick.
 Easy to modify.
 Easily add colour & surface texture.
 Test structural designs before building eg bridges.
 Easily sent by email.
 Less storage space required.
 Clients can explore virtual ‘walk through’ of 3D model designs.

17. OCULUS RIFT
“It was able to cross that threshold into presence where
your brain is saying “Well, this is real,” and that
difference is fundamentally the difference between VR
that’s a promise and VR that’s actually here. “
Cory Ondrejka

18. THANKS 

19. QUESTIONS?