lesson 22 graphics software. this lesson includes the following sections: paint programs...
TRANSCRIPT
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lesson 22
Graphics Software
![Page 2: Lesson 22 Graphics Software. This lesson includes the following sections: Paint Programs Photo-Manipulation Programs Draw Programs Computer-Aided Design](https://reader030.vdocument.in/reader030/viewer/2022032523/56649d8a5503460f94a70c16/html5/thumbnails/2.jpg)
This lesson includes the following sections:
• Paint Programs
• Photo-Manipulation Programs
• Draw Programs
• Computer-Aided Design Programs
• 3-D Modeling Programs
• Animation
• Graphics and the World Wide Web
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• Paint programs work with bitmap images and manage the individual pixels that make up an image.
• Paint programs provide a variety of tools that can add special effects to an image.
• It can be difficult to edit an entity in a paint program because the program does not see the entity as a whole, but as a set of pixels. To edit the image, you must make changes to the pixels that comprise it.
Paint Programs
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As the circle is zoomed on the screen,the individual pixels can be seen.
Pixelization is characteristicof paint programs.
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• Photo-manipulation programs are bitmap-based programs, which are used primarily to edit electronic or digitized photographs.
• Photo-manipulation programs can repair problems with an image, such as adjusting colors or hiding mistakes.
• Photo-manipulation programs can produce sophisticated effects, such as combining multiple images into a seamless whole, hiding parts of an image, and more.
Photo-Manipulation Programs
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The airbrush tool canbe used to repair a
scratched photograph.
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• Draw programs work with vectors and give the designer a great deal of flexibility in editing an image.
• Objects created in a draw program can be altered easily and without loss of image quality.
• Draw programs work well with text.
Draw Programs
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![Page 9: Lesson 22 Graphics Software. This lesson includes the following sections: Paint Programs Photo-Manipulation Programs Draw Programs Computer-Aided Design](https://reader030.vdocument.in/reader030/viewer/2022032523/56649d8a5503460f94a70c16/html5/thumbnails/9.jpg)
• Computer-Aided Design (CAD) programs are used in technical design fields to create models of objects that will be built or manufactured.
• CAD software allows users to design objects in three dimensions (3-D) and to produce 3-D wireframe and solid models.
• CAD products provide the user with high precision, and enable the user to divide drawings into layers, and add accurate dimensions (measurements) to a drawing.
Computer-Aided Design Programs
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• Surface modeling
• Solid modeling
• Polygonal modeling
• Spline-based modeling
Designers use 3-D modeling programs to build three-dimensional models of objects and characters, and to add special effects to them.
Modeling programs use four techniques to build models:
3-D Modeling Programs
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Gear Model in 3-D
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• Computers are used to create animation in various fields, including games and movies.
• Fly-bys and walk-throughs are basic types of computer animation.
• Character animation is the art of creating a character and making it move in a lifelike manner.
• Compositing tools allow designers to add characters and objects to scenes that did not originally contain them.
Animation
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Fly-by frame sequence
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• Web pages support many types of graphics, including bullets, rules, logos, complex artwork, and
photographs.
• The GIF (Graphics Interchange Format) and JPEG (Joint Photographic Experts Group) image formats are the most widely used formats on the Web.
• Animation can be added to a Web page by using simple animated GIF images or plug-in software such
as Flash or Shockwave.
Graphics and the World Wide Web
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• List five types of graphics software and their uses.
• Differentiate the way bitmap and vector graphics programs work.
• Describe four methods for creating 3-D computer models.
• Identify three categories of computer-generated animation.
• Name five types of graphics elements commonly found in Web pages.
lesson 22 Review