Object-space multiphase implicit functions

Yuan, Zhan Ting; Yu, Yizhou; Wang, Wenping

doi:10.1145/2185520.2335465

Cited by 9 publications

(15 citation statements)

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“…Recently, modeling heterogeneous objects with intricate geometries as well as complex material distribution has attracted enormous attentions (Yuan, Yu, & Wang, 2012), Ohtake (Ohtake Y. a., 2013). This type of modeling has been considered as a hybrid type of modeling where the geometric modeling and material modeling are included (Chiu & Tan, 2000), (Siu & Tan, 2002).…”

Section: Discussionmentioning

confidence: 99%

Modeling of Heterogeneous Objects: An Approach Based on Implicit Functions

Gómez-Mora

Flórez-Valencia

2016

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<p>El modelado de objetos, sus propiedades y relaciones es un tema importante en las ciencias de la computación y la informática. En ese sentido, esta investigación busca contribuir al modelado de objetos sólidos heterogéneos, así como al complejo estudio de la representación implícita de objetos sólidos. El enfoque que aquí se presenta es amplio y genérico, pero este artículo se centra en modelos bio-CAD, aludiendo su extensión y aplicación a otros campos. El objetivo general de este trabajo es demostrar que los modelos geométricos de objetos heterogéneos se pueden representar de forma implícita. Esto promete tener gran variedad de aplicaciones prácticas desde la computación biomédica hasta la animación por computador y la ingeniería aplicada. El enfoque adoptado aquí se basa en la observación de que los modelos sólidos actuales no pueden representar intrínsecamente información geométrica multifase junto con la información de los atributos. Esto hace necesario explorar nuevas técnicas de modelado para representar objetos del mundo real. La disponibilidad de este tipo de modelos es fundamental para el diseño, análisis y fabricación de objetos heterogéneos.</p>

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Section: Discussionmentioning

confidence: 99%

Modeling of Heterogeneous Objects: An Approach Based on Implicit Functions

Gómez-Mora

Flórez-Valencia

2016

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“…A recent system, Symvol by Uformia [40], allows for procedural modeling of microstructures in the context of single material 3D printing. An alternative approach is to use multi-phase implicit functions to model non-intersecting subvolumes as shown by Yuan et al [46]. Finally, Monolith [22] is a volumetric modeler that uses a stack of geometry and material assignment layers similar to image layers in imaging software.…”

Section: Related Workmentioning

confidence: 99%

“…Unlike prior work [7,46,41] that uses distance function queries to stratify the object or to decompose it into arbitrary internal subvolumes, we identify other uses for distance functions, especially when used with ancillary geometry that is coupled with the object being printed (see Figure 11). …”

Section: Distance Queriesmentioning

confidence: 99%

Foundry

Vidimče

Kaspar

Wang

et al. 2016

Proceedings of the 29th Annual Symposium on User Interface Software and Technology

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Figure 1. Objects designed using Foundry. Left: a paddle with a perforated blade and a 'sweet' spot on its smooth side. Center: a simulation-driven ski design with retro-reflective surfaces. Right: a trycycle 'tweel' with lattice spokes for lateral strength and foam for improved suspension. ABSTRACTWe demonstrate a new approach for designing functional material definitions for multi-material fabrication using our system called Foundry. Foundry provides an interactive and visual process for hierarchically designing spatially-varying material properties (e.g., appearance, mechanical, optical). The resulting meta-materials exhibit structure at the micro and macro level and can surpass the qualities of traditional composites. The material definitions are created by composing a set of operators into an operator graph. Each operator performs a volume decomposition operation, remaps space, or constructs and assigns a material composition. The operators are implemented using a domain-specific language for multi-material fabrication; users can easily extend the library by writing their own operators. Foundry can be used to build operator graphs that describe complex, parameterized, resolution-independent, and reusable material definitions. We also describe how to stage the evaluation of the final material definition which in conjunction with progressive refinement, allows for interactive material evaluation even for complex designs. We show sophisticated and functional parts designed with our system.

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“…Instead, we follow previous authors [Brakke 1992;Yuan et al 2012] in giving each material a unique integer label, and applying labels to the front and back of each triangle (i.e., each half-face is labeled). In this analogous 2D polygon example, colors indicate labels.…”

Section: Multimaterials Mesh Representationmentioning

confidence: 99%

Multimaterial mesh-based surface tracking

Batty

Grinspun

2014

ACM Trans. Graph.

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Figure 1: Two-Droplet Collision: Using our multimaterial mesh-based surface tracker, two immiscible liquid droplets with different materials but identical physical properties impact symmetrically in zero gravity under strong surface tension. The collision merges the droplets so that a new interface separates the two liquids, and a non-manifold triple-curve is created where the two liquids meet the ambient air. AbstractWe present a triangle mesh-based technique for tracking the evolution of three-dimensional multimaterial interfaces undergoing complex deformations. It is the first non-manifold triangle mesh tracking method to simultaneously maintain intersection-free meshes and support the proposed broad set of multimaterial remeshing and topological operations. We represent the interface as a nonmanifold triangle mesh with material labels assigned to each halfface to distinguish volumetric regions. Starting from proposed application-dependent vertex velocities, we deform the mesh, seeking a non-intersecting, watertight solution. This goal necessitates development of various collision-safe, label-aware non-manifold mesh operations: multimaterial mesh improvement; T1 and T2 processes, topological transitions arising in foam dynamics and multiphase flows; and multimaterial merging, in which a new interface is created between colliding materials. We demonstrate the robustness and effectiveness of our approach on a range of scenarios including geometric flows and multiphase fluid animation.

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Object-space multiphase implicit functions

Cited by 9 publications

References 0 publications

Modeling of Heterogeneous Objects: An Approach Based on Implicit Functions

Modeling of Heterogeneous Objects: An Approach Based on Implicit Functions

Foundry

Multimaterial mesh-based surface tracking

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