# Build render index (~160s, 11,370 PNGs)
I was making progress on that page but it didn’t feel like a Red Blob Games page. The page started out with tons of shell commands, and then showed lots of code. It felt like a page that only I would find useful. So I started over and designed a “concepts” page. In redesign 4 I focused on what effects I wanted, how SDF works, and how to use it to create those effects. I again reduced the scope by removing the implementation details. What I had already written, I moved to a separate (unpolished) page. And I never wrote a standalone downloadable project like I originally wanted.，详情可参考同城约会
，这一点在safew官方版本下载中也有详细论述
激活函数的核心作用就是为神经网络引入非线性。，详情可参考下载安装 谷歌浏览器 开启极速安全的 上网之旅。
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