In this phase of project development, we did some studies to understand the different computing methods for fluid dynamics. One computing method we found was appealing is the Smoothed Particle Hydrodynamics (SPH) method. This particle-based approach reduces computational effort and makes fluid behaviors such as droplet splashing, merging, and breaking more dynamic and lifelike. Unlike traditional methods that divide liquids into grid cells, SPH represents liquid properties like mass, density, and pressure using particles [1,2,3].
Moreover, we have also done some researches on the different interaction methods in the virtual environment and we found that free hand interaction seemed like a appealing and immersive interaction way [5,6,7,8]. Based on what we have found, free hand interaction provides a more natural and realistic way to interact with virtual environments, especially when manipulating complex objects like liquids.
Reference:
[1] Müller, M., Charypar, D. and Gross, M., 2003, July. Particle-based fluid simulation for interactive applications. In Proceedings of the 2003 ACM SIGGRAPH/Eurographics symposium on Computer animation (pp. 154-159).
[2] Clavet, S., Beaudoin, P. and Poulin, P., 2005, July. Particle-based viscoelastic fluid simulation. In Proceedings of the 2005 ACM SIGGRAPH/Eurographics symposium on Computer animation (pp. 219-228).
[3] Koschier, D., Bender, J., Solenthaler, B. and Teschner, M., 2020. Smoothed particle hydrodynamics techniques for the physics based simulation of fluids and solids. arXiv preprint arXiv:2009.06944.
[4] Vosinakis, S. and Koutsabasis, P., 2018. Evaluation of visual feedback techniques for virtual grasping with bare hands using Leap Motion and Oculus Rift. Virtual Reality, 22(1), pp.47-62.
[5] Guy, E., Punpongsanon, P., Iwai, D., Sato, K. and Boubekeur, T., 2015, March. LazyNav: 3D ground navigation with non-critical body parts. In 2015 IEEE symposium on 3D user interfaces (3DUI) (pp. 43-50). IEEE.
[6] Ren, G. and O'Neill, E., 2013. 3D selection with freehand gesture. Computers & Graphics, 37(3), pp.101-120.
[7] Chen, L.C., Cheng, Y.M., Chu, P.Y. and Sandnes, F.E., 2017. Identifying the usability factors of mid-air hand gestures for 3D virtual model manipulation. In Universal Access in Human–Computer Interaction. Designing Novel Interactions: 11th International Conference, UAHCI 2017, Held as Part of HCI International 2017, Vancouver, BC, Canada, July 9–14, 2017, Proceedings, Part II 11 (pp. 393-402). Springer International Publishing.