在我们的日常设计工作中，头脑风暴阶段会产生大量的手绘图。而要达到这种手绘图的精细度和耗时程度其实是不小的，上述手绘图是本人临摹刘传凯先生的手绘作品。在日常设计工作中，这种精细的并且具有严谨透视关系的手绘图通常被计算机辅助设计所取代。但不可否认的是，在产品开发阶段，以及进行产品美学推广宣传时，这种精准的、富有充分表现力的效果图，可以在计算机效果图的大环境中引来企业和产品用户的侧目，是一种经久不衰的设计交流、表达以及宣传的手段（是AI无法取代的设计交流工具）。
In our daily design work, the brainstorming phase produces a lot of hand-drawn drawings. However, it is not small to achieve the precision and time consuming degree of this hand-painted drawing. The hand-painted drawing above is my copy of Mr. Liu Chuankai's hand-painted works. In daily design work, this kind of detailed and rigorous perspective of hand-drawn drawings are often replaced by computer aided design. However, it is undeniable that, in the stage of product development, as well as product aesthetic promotion and publicity, such accurate and expressive renderings can attract the attention of enterprises and product users in the environment of computer renderings. It is an enduring means of design communication, expression and publicity (a design communication tool that cannot be replaced by AI).