Search Results

Signed Distance Fields (SDFs) parameterized by neural networks have recently gained popularity as a fundamental geometric representation. However, editing the shape encoded by a neural SDF remains an open challenge. A tempting approach is to leverage ...

We present a novel proposal for modeling complex dynamic terrains that offers real-time rendering, dynamic updates and physical interaction of entities simultaneously. We can capture any feature from landscapes including tunnels, overhangs and ...

• Real-time rendering using the standard depth and stencil buffers.
• Real-time dynamic updates and physical interaction on complex dynamic terrains.
• Erosions with a spherical sculpting tool with pixel-perfect accuracy.
• The model ...

Boolean operations are among the most used paradigms to create and edit digital shapes. Despite being conceptually simple, the computation of mesh Booleans is notoriously challenging. Main issues come from numerical approximations that make the detection ...

Abstract: In view of the current three-dimensional modeling of underground pipelines, indoor and outdoor pipelines are often constructed separately, resulting in inconsistent geometric and semantic expression of solid models, and their data formats need ...

To improve rendering performance or reduce implementation difficulty, when rendering, animating, or processing a solid with curved faces, its polyhedral approximation is often used. The polyhedron, R, and each one of its faces are ...

Display Omitted

• Integrated Boundary and CSG Representation for Polygons and Polyhedra.
• Boundary-...

Boolean operators are an essential tool in a wide range of geometry processing and CAD/CAM tasks. We present a novel method, EMBER, to compute Boolean operations on polygon meshes which is exact, reliable, and highly performant at the same time. ...

We propose a paradigm for the design and processing of solid structures that form a bent two-pattern of cells that are similar to each other, but have steadily varying scale and orientation. The proposed CTSP is a procedural ...

Display Omitted

• CSG combinations of periodic structures with CSG cells.
• Constant cost ...

We present a novel representation of solid models for shape design. Like Constructive Solid Geometry (CSG), the solid shape is constructed from a set of halfspaces without the need for an explicit boundary structure. Instead of using Boolean expressions ...

Objects with architected internal structure often consist of a lattice of beams that are interconnected at nodes. Compared to the conventional cylindrical and conical beams, quador-beams are bounded by ...

Display Omitted

• A hub defined as the union of a ball and incident quadric-of-revolution half-beams.

The extraction of 3D models represented by Constructive Solid Geometry (CSG) trees from point clouds is a common problem in reverse engineering pipelines as used by Computer Aided Design (CAD) tools. We propose three independent enhancements on state-of-...

While computer-aided design is a major part of many modern manufacturing pipelines, the design files typically generated describe raw geometry. Lost in this representation is the procedure by which these designs were generated. In this paper, we present ...

Constructive Solid Geometry models solids as boolean combinations of base primitives. It is one of the classical modeling approaches in Computer Graphics. With the advent of 3D printing, it has received a renewed interest: CSG affords for the robust ...

During the last ten years, increasing efforts were made to improve and simplify the process from Computer Aided Design (CAD) modeling to a numerical simulation. It has been shown that the transition from one model to another, i.e. the meshing, is a ...

System information (SI) acquisition is a mandatory component for inbound handover (HO) to closed subscriber group femtocells in LTE/LTE-Advanced networks. In this paper, we analyze theoretically and numerically several existing SI acquisition schemes ...

Small cell deployment using Home eNB improves the LTE/LTE Advanced network coverage and capacity providing its relay and data offloading functions. However, latency of inbound mobility to the small cell is a critical obstacle to the deployment because ...

Hierarchical macro/small cell deployment is one of the most promising technologies to enhance cell coverage and network capacity in 3GPP LTE/LTE-Advanced systems. However, latency of inbound mobility to the small cell is a critical obstacle to its ...

In heterogenous networks, intercell interference coordination (ICIC) is a big challenge. This paper presents an analytical framework to evaluate power control and time mute schemes in closed access femto and macro coexistent networks. We use stochastic ...

Recently, femtocell solutions have been attracting increasing attention since coverage for broadband radios can effectively eliminate wireless notspots. To restrict malicious subscribers from accessing femtocells, 3G/WiMAX standards introduce an access ...

Recent advances in implicit surface modeling now provide highly controllable blending effects. These effects rely on the field functions of R^3->R in which the implicit surfaces are defined. In these fields, there is an outside part in which blending is ...

We explore different semantics for the solid defined by a self-crossing surface (immersed sub-manifold). Specifically, we introduce rules for the interior/exterior classification of the connected components of the complement of a self-crossing surface ...