这是因为 Panda3D 在第一次载入 .egg 文件时,会将它翻译成在速度方面进行优化了的 bam 文件。这些 bam 文建会背包存在一个目录中。当您开发一款游戏时,
"This is possible because Panda3D is quietly translating the EGG file into a performance-optimized form: the BAM file. It stores these BAM files in a directory called the model cache. When developing a game, this works great: the only time you notice a delay is if you just created the EGG file for the first time. Otherwise, it runs blazing fast."
- Panda3D Manual (查看 Google 边栏评注)
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