Susan Morris wanted to track the movement of her body over an extended period of time in order to generate a ‘Motion Capture Drawing’; specifically, whilst she produced a ‘plumb line’ drawing (see below). The production of this drawing involved a process which, because it involved a large amount of repetition, encouraged Susan’s movements to become somewhat ‘automatic’ and exhibit a characteristic Susan refers to as “creatureliness”. More details about the philosophy behind Susan’s work can be found here.
The process of converting the 3d movement data into a line was quite complex presented a number of technical challenges. The movement took place of over a period of eight hours and it was decided that we would track 6 points on Susan’s body; her head, back, hands and hips. Hence, at 50 frames per second, a sequence of over 8.5 million coordinates was captured. This was separated into 3 sets of 2D values per marker and converted into 18 drawings representing orthographical views of the movement of each marker over the 8 hours.