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Blender 2.49 Scripting by Michel J. Anders

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Chapter 6. Shape Keys, IPOs, and Poses

We already encountered IPOs inChapter 4, Pydrivers and Constraints when we discussed Pydrivers, but there is more to IPOs than just driving one IPO by another one. For example, the Blender API provides us with the means to define IPOs from scratch, enabling the definition of movements not easily re-created by setting key frames by hand. Furthermore, some types of IPOs have a somewhat different behavior than the ones that we encountered so far. Shape keys and poses are examples of (collections of) IPOs that are quite different from, for example, a location IPO. We will encounter both shape keys and poses later on in this chapter, but we will start off with looking at how we might define an IPO from scratch. ...

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