This edition will be dedicated to a collaborative dissection of the BioVision Hierarchy file format. BioVision Hierarchy (.bvh) is an ASCII file format used to import data from various motion capture systems into 3D-animation software. It was developed in the mid-nineties and remains one of the most commonly used file-formats for transposing movement captured in physical space, to a computational environment. Around this relatively legible format, a rich ecology of software tools developed. The file-format functions as a boundary object between practices and bodies, as it is used by animators, game developers, interface researchers, medical professionals, dance-historians, sports-analysts and engineers.
Together we will analyse the .bvh specifications and samples of the file format in order to understand what imaginaries of the body are encoded into it, what a bipedal skeleton hierarchy consists of, and how rotational data for rigid bodies might constitute a movement in itself.
The reading of the .bvh file format is developed with Adva Zakai in the context of Possible Bodies, a collaborative research initiated by Jara Rocha and Femke Snelting on the very concrete and at the same time complex and fictional entities that “bodies” are, and the matter-cultural conditions of possibility that render them present. Adva Zakai is a choreographer, performer and curator who explores how body and language are perceived through each other.