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Ajay Kumar Bansal, Lovely Professional University  Unit 14: Animation in Computer Graphics




                              Unit 14: Animation in Computer Graphics


               CONTENTS
               Objectives
               Introduction

               14.1 Animation
               14.2 Additional Visual Effects
               14.3 Summary
               14.4 Keywords
               14.5 Self Assessment
               14.6 Review Questions

               14.7 Further Readings
               Objectives

               After studying this unit, you will be able to:
               •    Discuss animation

               •    Explain additional visual effects
               Introduction
               Visual effect is part of advanced computer graphics that pertains to the various processes through
               which images are created and manipulated in the absence of a live environment. When the sets are
               costly to setup and when  it becomes impossible to capture a film or object, visual effects come into
               picture. They provide realistic image of the live environment. The images in visual effects are computer
               generated and can be seen in most of the movies.
               Visual effects provide more appeal to the story line of a movie and are generally completed after the
               completion of movie but are pre-planned before the commencement of a movie shoot.

               Visual effects employ graphic designing, modeling, animation and other relevant software but special
               effects are made on the sets.
               Today, one can find the application of computer graphics and visual effects and animation in diverse
               fields such as science, technology, military, advertising, entertainment, and so on.

               14.1   Animation
               The word animation is derived from the Latin word ‘anima’ which is the animating principle. It is used
               as  a translation for the Greek word psyche  and relates to the Christian concept of soul. Hence,
               animation can be defined as a technique of giving soul to drawings and art work which are lifeless.
               Earliest examples of animation can be traced back to the Paleolithic cave paintings where attempts were
               made to capture the phenomenon of motion drawing.
               The term animation is used to display a sequence of images rapidly employing either 2-D or 3-D art
               works or positions of various models to bring out an illusionary movement to the models and art work.
               This is done through optical illusion of motion by employing the phenomenon of persistence of vision
               in which images can be created and depicted in several ways. Motion picture or video programs are the
               commonly used methods of animation.









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