ID:
publications-4844
Type:
Conference paper
Year:
2024
Authors:
Nagakura K.; Fushimi T.; Tsutsui A.; Ochiai Y.
Title:
Dynamic Acousto-Caustics in Dual-Optimized Holographic Fields
Venue/Journal:
Proceedings - SIGGRAPH 2024 Emerging Technologies
DOI:
10.1145/3641517.3664384
Research type:
Water System:
Technical Focus:
Abstract:
We aims to computationally replicate the dynamic caustics observed in nature, such as the captivating light patterns found at the pool or within flowing rivers. Traditional computer science approaches have only been able to reproduce these light patterns through static fabrication. We introduce "Dynamic Acousto-Caustics"a method that merges acoustofluidics with optics to dynamically manipulate light caustics by controlling the shape of liquid surfaces. Using computer-controlled acoustic fields to deform the surface of a liquid medium, we generate dynamic light behaviors in fluid patterns unachievable with static refractive surfaces. This research not only extends the understanding and application of controlled caustics across various technical and creative domains but also exemplifies the intersections made possible at the convergence of multidisciplinary research. While devices exist to generate waves by vibrating water surfaces, they could not produce continuous caustics at specific locations and timings. Employing ultrasonics to deform the water surface allows us to directly manipulate the surface to create more continuous animated patterns. We shape caustics through acoustic field manipulation and optimize the visual outcome emanating from the geometry of these manipulated objects within a dynamic system. Our approach leverages the Digital Twin methodology as an optimization strategy to fine-tune the interplay between sound and light. This enhances the understanding and application of controlled caustics in numerous technical, demonstrating the crossing points enabled by the convergence of interdisciplinary research streams. Β© 2024 Owner/Author.
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