add the beautiful floor texture 綺麗な床テクスチャを実装

[billhung]

Asset file: アセットファイル： https://github.com/billhung/GGJ2020/issues/2#issuecomment-581019120

[billhung]

somehow the normal map didn't show normalマップがなぜが効かない

[billhung]

"Shader Graph is designed to work with another Unity 2018.1 feature: Scriptable Render Pipeline (SRP). Therefore, you can’t use it with the Built-In Unity Renderer" https://blogs.unity3d.com/2018/02/27/introduction-to-shader-graph-build-your-shaders-with-a-visual-editor/?_ga=2.114965507.523171286.1580519659-351557562.1580519659

[billhung]

potential solution 解決案 https://answers.unity.com/questions/1502090/shadergraph-always-results-in-pink-broken-shader.html

[billhung]

the potential fix didn't work, so submitting without normal map... 修正案は無駄だ、NORMALマップなしで提出します。