Object Modeling in 3D Animation
Object modeling: this consists of describing or constructing three-dimensional objects.
Motion specification and synchronization: to animate an object is to make it move, or to change its shape or position over a period of time. Not only must the movements be created for all the actors involved in each scene, but all these movements must be synchronized. When making an ordinary video film, movements can be filmed of course, but the camera itself can also be moved. The same principle applies to three-dimensional computer animation, although instead of wielding a real camera, a dummy, or “virtual,” camera is simulated. The location of the camera, its positioning, and even focus are programmed. Furthermore, all these parameters can be varied or combined so that any camera motion can be simulated (pan, tilt, zoom). [MagnenairThalmann and Thalmann 1986b].
Image rendering: this is the process of producing a realistic image by removing hidden surfaces and adding effects like shading, shadows, transparency, and texture. These techniques will be discussed in detail in Chaps. 8 and 9.
KeywordsControl Point Procedural Model Object Modeling Internal Model Television Advertisement
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