在Unity 3D中shader是何时编译的？Unity 项目中咋快速解压ZIP文件到移动手机

是某①对象在实例化时，加载其相关的material与shader还是游戏开始时？

你在编辑器里，每次修改、保存的时候就会自动编译(unity是监视Asset文件改动的)

移动平台的话，感觉是载入场景的时候，按需编译、加载的，不过不是⑩分确定

Unity - Scripting API: 这个文档里有①些说明：Usually graphics drivers do not actually prepare shaders until they are first needed. However when some object is first rendered with a previously unused shader, there can be a hiccup because the driver is compiling/optimizing the shader. This can be quite noticeable, especially on mobile platforms.

手机的IO很慢的...当然CPU也没法和PC比，不过这个已经是次要因素了

Lzma