The concept of 3d in Processing is kinda freak me out a little bit. Because I used to do much better on being creative on 2d coding environment on bootcamp. So I push myself quite hard and the results are not really came out the way I expected. However, to start the documentation with a failure is good to get the feeling of empty glass though!
First part showing the figured out idea of how to manipulate the in-class code's matrix into z dimension.
Second and third part is my attempt to make a rainfall between 2 planes. Using the Bouncing ball code to make the animation. However I can hardly figured out how and finish this thing for now because 3D environment is a whole new world for me. And I have spent too much time on this already. So I decided to move on and will keep the idea to finished them when I got more used to P3D.