In this paper, we propose an angular momentum-based advection technique that can express the turbulent foam effect. The motion of foam particles, which are strongly bound to the motion of the underlying fluid, is viscous, and sometimes clumping problems occur. This problem is a decisive factor that makes it difficult to express realistic foam effects. Since foam particles, which are secondary effects, depend on the motion of the underlying water, in order to exaggerate the foam effects or express more lively foam effects, it is inevitable to tune the motion of the underlying water and then readjust the foam particles. Because of such a cumbersome process, the readjustment of the foam effects requires a change in the motion of the underlying water, and it is not easy to produce such a scene because the water and foam effects must change at the same time. In this paper, we present a method to maintain angular momentum-based force from water particles without tuning the motion of the underlying water. We can restore the lost turbulent flow by additional advection of foam particles based on this force. In addition, our method can be integrated with screen-space projection frameworks, allowing us to fully embrace all the advantages of this approach. In this paper, the turbulence of the foam particles was improved by minimizing the viscous motion of the foam particles without tuning the motion of the underlying water, and as a result, lively foam effects can be expressed.
Bibliographical noteFunding Information:
Funding: This research was supported by 10.13039/501100014188-Korea Government [Ministry of Science and ICT (MSIT)] under Grant NRF-2021R1A2C1094624 for Changhun Kim. This research was supported by a Hallym University Research Fund (HRF-202011-009). This study was carried out with the support of “R&D Program for Forest Science Technology (Project No. 2021390A00-2123-0105)” provided by Korea Forest Service(Korea Forestry Promotion Institute). National Research Foundation of Korea funded by Ministry of Science, ICT & Future Planning, Grant/Award Number: 2017R1C1B5074984.
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
- Angular momentum
- Fluid simulations
- Foam particles
- Projective space
- Secondary effects
ASJC Scopus subject areas
- Materials Science(all)
- Process Chemistry and Technology
- Computer Science Applications
- Fluid Flow and Transfer Processes