摘要: 很久没写技术文章，今天写一下骨骼动画的过渡，也当是复习一下。骨骼动画的过渡在游戏中很常见，由一个动作切换到另一个动作有个过渡时间，这个过程其实是动作混合的过程。
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摘要: 1. Trying to do too much in the first version. See Raymond's point above.
2. Taking a major dependency on unproven technology.
3. Competing with an existing internal project that was either a cash cow or had backers that are highly placed in the corporate hierarchy.
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