3D computation has historically co-evolved with Modern technosciences, and aligned with the regimes of optimisation, normalisation and hegemonic world order. The legacies and projections of industrial development leave traces of that imaginary and tell the stories of a lively tension between “the probable” and “the possible”. Defined as the techniques for measuring volumes, volumetrics all too easily (re)produce and accentuate the probable, and this process is intensified within the technocratic realm of contemporary hyper-computation. The ubiquity of efficient operations is deeply damaging in the way it gradually depletes the world of all possibility for engagement, interporousness and lively potential. Volumetric Regimes: material cultures of quantified presence proposes an urgent intersectional inquiry into volumetrics to foreground procedural, theoretical and infrastructural practices that provide with a widening of the possible. This book brings together diverse materials from an ongoing conversation between artists, software developers and theorists working with techniques and technologies for detecting, tracking, printing, modelling and rendering volumes.