>>343848156
You will soon learn why it is called weight pain-ting. Though weighting long hair to your chest can be done in a couple of clicks, really. All it essentially means is you are assigning parts of your model to be controlled by certain bones. Weight painting your hair to your chest in the way I'm implying means it will only move with your chest bone like it was glued there. It's very optimised compared to the alternatives and can look quite good if you've got hair that naturally drapes over your shoulders and runs down your back.