On Perception of Semi-Transparent Streamlines for Three-Dimensional Flow Visualization

One of the standard techniques to visualize three-dimensional flow is to use geometry primitives. This solution, when opaque primitives are used, results in high levels of occlusion, especially with dense streamline seeding.... Read more »

Modelling of Non-Periodic Aggregates Having a Pile Structure

This paper presents a procedure for modelling aggregates such as piles that consist of arbitrary components. The method generates an aggregate of components that need to be accumulated, and an aggregate shape... Read more »

Image Space Rendering of Point Clouds Using the HPR Operator

The hidden point removal (HPR) operator introduced by Katz et al. [KTB07] provides an elegant solution for the problem of estimating the visibility of points in point samplings of surfaces. Since the method requires... Read more »

Multi-Scale Kernels Using Random Walks

We introduce novel multi-scale kernels using the random walk framework and derive corresponding embeddings and pairwise distances. The fractional moments of the rate of continuous time random walk (equivalently diffusion rate) are... Read more »

Stackless Multi-BVH Traversal for CPU, MIC and GPU Ray Tracing

Stackless traversal algorithms for ray tracing acceleration structures require significantly less storage per ray than ordinary stack-based ones. This advantage is important for massively parallel rendering methods, where there are many rays... Read more »

Subdivision Surfaces with Creases and Truncated Multiple Knot Lines

We deal with subdivision schemes based on arbitrary degree B-splines. We focus on extraordinary knots which exhibit various levels of complexity in terms of both valency and multiplicity of knot lines emanating... Read more »

Scalable Realistic Rendering with Many-Light Methods

Recent years have seen increasing attention and significant progress in many-light rendering, a class of methods for efficient computation of global illumination. The many-light formulation offers a unified mathematical framework for the... Read more »

Visibility Silhouettes for Semi-Analytic Spherical Integration

At each shade point, the spherical visibility function encodes occlusion from surrounding geometry, in all directions. Computing this function is difficult and point-sampling approaches, such as ray-tracing or hardware shadow mapping, are... Read more »

IBM launches advertising blitz against AWS at re:Invent

LAS VEGAS — Advertisements are popping up along the Las Vegas strip this week that challenge Amazon Web Services’ position in the cloud market — and the perpetrator is competitor IBM. As... Read more »

HyTrust snaps up encryption firm HighCloud

HyTrust will add encryption to its cloud security software following its acquisition of HighCloud Security this week. HyTrust Inc. already enforces access controls at the management layer of virtual environment so that... Read more »