How to obtain the shape code and color code of the input

[ClimberY]

I am very interested in your excellent work. I want to ask how to obtain the shape code and color code of the input. In the same class, such as the same chair class, different instances have different codes. Are these two codes trained before editing? How can I use labels to supervise the training of these two codes? The network parameters are obtained through training. How to obtain the input code?