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Definitions
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Chapter 2: The Basics
Here are some terms you should be familiar with when dealing with
computer graphics. These are simplified (and possibly inaccurate)
definitions, but they are enough to get you started:
- Scene
- A scene is the picture you are creating. In the most basic sense, a
scene consists of objects, some light sources, and the camera.
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- Objects
- Objects are the things in your scene. Complex objects are made up of
basic objects called primitives.
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- Light Sources
- Light sources in a scene define where the lights come from. If there
were no light sources, your scene would be black and you wouldn't
see anything (well, not really but this assumption simplifies
things).
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- Camera
- The camera defines where your eyes are in the scene, it
defines where you are and what you are looking at.
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- Rendering
- Scenes are normally stored as instructions so before you can see the
scene graphically, the computer must draw it. This process is called
rendering.
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- Rendering Pipeline
- The rendering pipeline is the set of steps involved in rendering a
scene.
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