Siggraph::Volumetric modeling

What is “volumetric modeling”?

Penney, D. (2016). Volumetric clouds in the VR movie - Allumette. In Proceedings of the 2016 Symposium on Digital Production - DigiPro ’16 (pp. 61–64). Anaheim, California: ACM Press. https://doi.org/10.1145/2947688.2947699
Sahbaei, P., Mould, D., & Wyvill, B. (2018). Implicit representation of inscribed volumes. In Proceedings of the Joint Symposium on Computational Aesthetics and Sketch-Based Interfaces and Modeling and Non-Photorealistic Animation and Rendering - Expressive ’18 (pp. 1–7). Victoria, British Columbia, Canada: ACM Press. https://doi.org/10.1145/3229147.3229164