cgi technology in movie

Movie Technology

CGIin

Presented By :

Soumyajit Adhya 2011-1038

What is CGI ?

CGI stands for computer generated imagery.

It is the application of computer graphics to create or contribute to images in art, printed media, video games, films, television programs, commercials, videos, and simulators.

Uses of CGI

FractalLandscapes

ArchitecturalModels

AnatomicalModels

fractal.org designhomes.pics

Sciencechannel.com

Uses of CGI

VirtualWorld

ComputerAnimation

vwer.org riki-group.com

CGI on Silver Screen

CGI is used in movies in many ways.

All kinds of visual effects and animations are kinds of computer generated imagery.

CGI can easily implement some virtual scenes which may not possible in reality to get.

CGI & Science fiction go hand in hand.

3D CGI first used in 'Futureworld' (1976).

Futureworld(1976)

CGI on Silver Screen

There are two kinds of uses of CGI in the course of movie technology

Realistic CGI Physical Realism,Photo Realism,Functional Realism.

Realistic animation

2D Animation,3D Animation.

Three mainly used methods for animation are Tweening – Morphing – Rendering.

REALISTICCOMPUTER GENERATED IMAGERY

Physical Realism

In which the image provides the same visual stimulation as the scene.

The image is almost accurate as a human holding a drawing of a cartoon. This can introduce a feelings of reality in human mind. The Adventures of Tintin(2011)


Photo Realism

In which the image provides the same visual response as the scene.

The image is almost accurate as a giant demolishing a city with its wrath. This can introduce horror and awe in human mind. Godzilla(2014)


Functional Realism

In which the image provides the same visual information as the scene.

The image shows that an astronaut floating in the space. This can elaborate the scene of outer space and the view of earth from space.

Gravity(2014)

Realistic Animation

Computer Animation only refers to moving images.

Digital successor to Stop Motion Techniques.

Though animation is vastly classified in two parts a) 2D-Animation, & b) 3D-Animation.

But most popularly used by three methods Tweening – Morphing – Rendering.

Tweening and morphing is used as 2D-Animation and Rendering is used as 3D-Animation.

Realistic Animation

2D-Animation

2D-Animation figures are created and/or edited on the computer using 2D bitmap graphics or created and edited using 2D vector graphics.

This is the kind of traditional animation technique using paper drawings, later it is adopted with the computer to make it more realistic. This version is known as Digital 2D-Animation. Used softwares are Toon Boom Studio, Adobe After Effects etc.

s3images.coroflot.com

Realistic Animation

3D-Animation

3D animation is digitally modeled and manipulated by an animator. The animator usually starts by creating a 3D polygon mesh to manipulate. A mesh typically includes many vertices that are associated by edges and faces, to give the visual appearance of form to a 3D object or 3D environment.

Used softwares are Autodesk Maya, Adobe Photoshop etc.

animationinsider.com

Other popular methods are as follows…

Realistic Animation

Tweening

wikipedia.org

It is the process of generating intermediate frames between two images to give the appearance that the first image evolves smoothly into the second image.

Inbetweens are the drawings between the key frames which help to create the illusion of motion. Tweening is a key process in all types of animation, including computer animation. Software used like Toon Boom Studio.

Realistic Animation

Morphing

paulbakaus.com

It is a effect in animation that changes (or morphs) one image or shape into another through a seamless transition.

Most often it is used to depict one person turning into another through technological means or as part of a fantasy or surreal sequence. Traditionally such a depiction would be achieved through cross-fading techniques on film. Since the early 1990s, this has been replaced by computer software to create more realistic transitions. Softwares used like Adobe After Effects.

Realistic Animation

Rendering

wikipedia.org

It is the process of generating an image from a 2D or 3D model by means of computer programs. Also, the results of such a model can be called a rendering.

It would contain geometrical patterns, texture, lighting and shading information as a description of the virtual scene.

Rendering is the one of the main topic of 3D animation. Used softwares are Open CASCADE, MODO etc.

Another Major Method

Motion Capture

Motion capture (Mo-cap for short) is the process of recording the movement of objects or people.

It is mainly used in game development but these days it is the most popular CGI method used in movie technology.

nward.com

Future Scopes

Much more detailed realism in world of animation.

Hyper-realistic CGI : These days it itself become a course of study and experimentation.

The world of movie maniacs are trending towards more virtuality and sci-fi movies which is unbiased focused on 3D CGI techniques can lead us to Virtual Reality.

Though 3D-Animation is advancing tremendously, there is no question of forgetting 2D-Animation cause some traditional studios like Disney, Dreamworks are still focused on it.

As the technologies are evolving, the techniques and uses of CGI is changing too. So we can keep expecting more new techniques in the sector of computer generated imagery.

ThankYou