Computer Science › Section K · Computer graphics › Topic K.2
Modeling objects
Before anything can be rendered, every object in a virtual scene has to be described as data. Most of that description is a mesh of small flat triangles, built from formulas, measurements or programs, then dressed with colour and arranged into a scene.
In this topic
- Scenes, objects and how much detail
- Polygonal meshes
- Worked example: a cube as a mesh
- Which side is outside
- Worked example: a patch's normal
- From exact shapes to meshes
- Worked example: a point on a Bézier curve
- Measured and procedural models
- Surface properties and texture mapping
- The scene graph
- Common mistakes to avoid
- Key takeaways
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