Lecture 1 - Projections and Transformations (slides)

# multiple instances the same object may appear at

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Unformatted text preview: n! –  The z-zaxis as the direction of view! •  Hence we need to be able to transform the coordinates of a graphics scene. ! Graphics Lecture 1: Slide 33! Transformation of viewpoint ! Before transformation! Graphics Lecture 1: Slide 34! After transformation! Other transformations ! •  We also need transformations for other purposes: ! –  Animating Objects  !e.g. ﬂying titles, rotating, shrinking etc. ! –  Multiple Instances  !the same object may appear at different places or different ! !sizes ! –  Reﬂections and other special effects ! Graphics Lecture 1: Slide 35! Matrix transformations of point Matrix transformations of point Matrix transformations of points! To transform points we use matrix multiplications, e.g. to To transform points we use matrix multiplications, for example to transform points we use matrix multiplications, could use: ! Tomake an object at the origin twice as big wefor example to make an object at the origin twice as big we could use:...
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## This document was uploaded on 03/26/2014.

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