It's kind of a puppeteering thing, where I can use as many fingers as I have to draw and make -- Now, there's a lot of actual math going on under here for this to control this mesh and do the right thing.
这就像是操 控木偶一般，这边我可以使用 我的十根手指去画出并做出玩偶。 事实上，在 这表象之下需要很多数学运算， 然后它才能 控制这些图案，并正确的反应。