Computer graphics are very useful. Computer-generated imagery is used for movie making, video game and computer program development, scientific modeling, and design for advertising and other commercial art. Some people even make computer graphics as art.
Subsets of computer graphics
2D computer graphics are usually split into two categories: vector graphics and raster graphics.
Vector graphics use lines, shapes, and text to create a more complex image. If a vector graphic image is made very big on the monitor, it will still be as good as its regular size. This is one of the reasons vector graphics are liked so much. Vector graphics are made with programs like Adobe Illustrator and Inkscape, and were used for some older computer games. Today, they are often used for when computer graphics have to be printed out.
- Examples of vector graphics
- TheStructorr Lamborghini Gallardo.svg
A compact fluorescent light bulb.
Raster graphics use pixels to make up a larger image. This does not mean the artist has to change a single pixel at a time - raster programs often have tools like paintbrushes, paint buckets, and erasers to make a picture. Programs used to make these include Adobe Photoshop and Corel Paint Shop Pro. These are often used as part of what the user sees when she uses a computer program.
Sometimes people do use only pixels to make an image. This is called pixel art and it has a very unique style.
- Examples of raster graphics
- The Gunk.png
A pixel art image of "The Gunk."
- Rosa Gold Glow 2.jpg
Photographs are raster images.
3D graphics are graphics that look like objects because they are three-dimensional. This means the computer thinks it has a height, a length, and a depth, and displays them as this. Among other things they use solid geometry and trigonometry to create correct perspectives. Some programs used to make 3D graphics are Bryce, 3D Studio Max, Maya and Blender, and 3D graphics are used many times in movies and TV shows and video games.
- Examples of 3D graphics
- Glasses 800 edit.png
A bunch of drinking glasses.
- Elephants Dream s6 both.jpg
A picture of the movie Elephants Dream.