GI

Most of existing crowd simulation algorithms focus on the moving trajectories of individual agents, while collective group formations are often roughly learned from video examples or manually specified via various hard constraints (e.g., pre-defined ...

In many constrained environments, precise control of foot placement during character locomotion is crucial to avoid collisions and to ensure a natural locomotion. In this paper, we present a new exact motion synthesis technique that generates planar ...

In this paper, we propose a new model for creating physically-based animations of the baking process. Our model is capable of reproducing the fluid-solid phase transition, volume expansion, and surface browning that take place during the baking process. ...

In this paper we introduce the notion that artists should be able to control fluid simulations by providing examples of expected local fluid behavior (for instance, an artist might specify that magical smoke often forms star shapes). As our idea fits ...

In this paper we describe how human target following performance changes in the presence of latency, latency variations, and signal dropouts. Many modern games and game systems allow for networked, remote participation. In such networks latency, ...

We present the design and experimental evaluation of pop-up depth views, a novel interaction technique for aiding in the placement or positioning of a 3D cursor or object. Previous work found that in a 3D placement task, a 2D mouse used with multiple ...

As an input device, fabric holds potential benefits for three dimensional (3D) interaction in the domain of surface design, which includes designing objects from clothing to metalwork. To investigate these benefits, we conducted an exploratory study of ...

We present and comparatively evaluate two new object transformation techniques for multi-touch surfaces. Specifying complete two-dimensional similarity transformations requires a minimum of four degrees of freedom: two for position, one for rotation, ...

Thanks to the recent efforts, virtual worlds are, at the very least, partially accessible to users with visual impairments. However, generating effective non-visual descriptions for these environments is still a challenge. Sighted users can process an ...

The creation of realistic, complex, and diversified virtual worlds is of utmost importance for video games. Unfortunately the amount of time required to create 3D scene contents can be extremely tedious to graphic artists. While procedural modeling can ...

Occlusion culling is a common approach to accelerate real-time rendering of polygonal 3D-scenes by reducing the rendering load. Especially for large scenes, it is necessary to remove occluded objects to achieve a frame rate that provides an interactive ...

We present a system to procedurally generate complex models with interdependent elements. Our system relies on the concept of components to spatially and semantically define various elements. Through a series of successive statements executed on a ...

This paper presents data structures that enable interactive editing of large-scale level-set surface models. The new approach utilizes spatial hashing to store a narrow band of voxels around the level-set interface, as well as a k-d tree to hold the ...

Visual encodings are the medium through which information is displayed, perceived, interpreted, and finally transferred from a visualization to the user. Traditionally, such encodings display information as representations of length, color, size, slope, ...

In traditional graphical user interfaces, the majority of UI elements are hidden to the user in the default view, as application designers and users desire more space for their application data. We explore the benefits of dedicating additional screen ...

In high-end desktop videoconferencing systems, several windows compete for screen space, particularly when users also share an application. Ideally, the layout of these windows should satisfy both (a) layout guidelines for establishing a rich ...

This paper presents a new fast, automatic method for structure-aware stippling. The core idea is to concentrate on structure preservation by using a priority-based scheme that treats extremal stipples first and preferentially assigns positive error to ...

Multi-display environments (MDEs) connect several displays into a single digital workspace. One of the main problems to be solved in an MDE's design is how to enable movement of objects from one display to another. When the real-world space between ...

Recent advances in GPU architecture and programmability have enabled the computation of ray casted or ray traced images at interactive frame rates. However, the rapid performance gains of the hardware cannot by themselves address the challenge posed by ...

Analytic approaches to efficiently simulate accurate light transport in homogeneous participating media have recently received attention in the graphics community, and although a closed-form solution to the single-scattering air-light integral has been ...

Rendering images using Monte-Carlo estimation is prone to bright spots artefacts. Bright spots correspond to high intensity pixels that appear when a very low probability sample outweighs all other sample contributions. We present an average estimator ...

We introduce procedural geometry mapping and ray-dependent grammar development for fast and scalable render-time generation of procedural geometric details on graphics hardware. By leveraging the properties of the widely used split grammars, we replace ...

People generally remember locations in visual spaces with respect to spatial features and landmarks. Geographical maps provide many spatial features and hence are easy to remember. However, graphs are often visualized as node-link diagrams with few ...

We present a new system for visualizing and merging differences in diagrams that uses animation, dual views, a storyboard, relative re-layout, and layering. We ran two user studies investigating the benefits of the system. The first user study compared ...

The classic task of image compositing is complicated by the fact that the source and target images need to be carefully aligned and adjusted. Otherwise, it is not possible to achieve convincing results. Visual artifacts are caused by image intensity ...

This paper presents the Self-Sorting Map (SSM), a novel algorithm for organizing and visualizing data. Given a set of data items and a dissimilarity measure between each pair of them, the SSM places each item into a unique cell of a structured layout, ...

Steering and driving tasks -- where the user controls a vehicle or other object along a path -- are common in many simulations and games. Racing video games have provided users with different views of the visual environment -- e.g., overhead, first-...

This paper discusses the social and strategic communication patterns observed during gameplay of the real-time strategy game, StarCraft II. An observational study was conducted over three weeks during which approximately 26 game matches and the social ...

Individuals with visual impairments have significantly higher levels of obesity and often exhibit delays in motor development, caused by a general lack of opportunities to be physically active. Tactile/audio based exergames that only involve motions of ...