The black poche represents the cut through structure and red represents vegetation.

黑色填充代表结构切面，红色代表植被。

A fully detailed model isn't necessary and mistakes can be concealed through paint and poche.

一个完整的细节模型并不是必需的，错误可以通过涂抹和填充来隐藏起来。

I also took the CAD floor plan and overlayed it on top of the illustration to get neatly poche walls and edges.

我也使用了CAD的平面图放在了渲染图的顶部，使得图面获得整齐的填充墙体和边缘。