surfaces
RSS surfacesMulti-Bandwidth Frequency Selective Surfaces for Near Infrared Filtering: Design and Optimization
White Paper Frequency selective surfaces are widely used in the microwave and millimeter wave regions of the spectrum for filtering signals. They are used in telecommunication systems for multi-frequency operation or in instrument... [10 Jul 2008]
Simulation of Iridescence and Translucency on Thin Surfaces
White Paper This paper will focus on simulating the visual effect of translucency and iridescence of thin surfaces such as butterfly wings. When creating a visual impression of a particular material, an important characteristic of... [29 Feb 2008]
Specifying Interaction Surfaces Using Interaction Maps
White Paper This article present a flexible and easy-to-use technique that overcomes this problem by allowing a designer to specify interaction surfaces, parts of the model he wants to respond to events, by painting them onto the... [25 Feb 2004]
Sharp Features on Multiresolution Subdivision Surfaces
White Paper In this paper we describe a method for creating sharp features and trim regions on multiresolution subdivision surfaces along a set of user-defined curves. Operations such as engraving, embossing, and trimming are... [25 Feb 2004]
A Meshing Scheme for Efficient Hardware Implementation of Butterfly Subdivision Surfaces Using Displacement Mapping
White Paper A common bottleneck for high performance graphics systems is the transfer of millions of triangles from the CPU to the graphics pipeline. Displacement Mapping is an effective technique for encoding high levels of detail of surface models... [01 Mar 2008]
Nano-Structured Surfaces for Tuned Infrared Emission for Spectroscopic Applications
White Paper Thermal emission from heated materials follows the blackbody curve, multiplied by emissivity. Emissivity may be, but is not usually a strong function of wavelength. Ion Optics has developed a variety of surface texturing processes that... [25 Feb 2004]
Capturing and Rendering Geometry Details for BTF-Mapped Surfaces
White Paper Bidirectional Texture Functions, or BTFs, accurately model reflectance variation at a fine (meso-) scale as a function of lighting and viewing direction. BTFs also capture view-dependent visibility variation, also called masking or... [09 Jun 2007]
Plot thickens as Global Crossing accounts scandal surfaces
News Global Crossing has admitted that one of its employees raised concerns about its accounting practises last August - six months before it filed for Chapter 11 bankruptcy protection. Roy Olofson, vice president of finance at the time,... [31 Jan 2002]
Photos: Microsoft Surfaces in Vegas
Photo Microsoft's Surface tabletop computer got a one-night gig on the Las Vegas Strip at Harrah's casino last week at the National Heads-Up Poker Championship drawing party. Poker celebrities, and a few faces famous outside the game, got a... [07 Mar 2008]
Hyperbolic and Parabolic Quadric Surface Fitting Algorithms Comparison Between the Least Squares Approach and the Parameter Optimization
White Paper Locating and classifying quadric surfaces is a significant step in the recognition of 3D manufactured objects because quadric surfaces are commonly occuring shapes in man-made products. Surface fitting... [25 Feb 2004]
Spectral Based Color Image Editing (SBCIE)
White Paper Spectral based color image editing systems include methods for generating spectral representations of surfaces and illuminants from input signals of image capture devices (such as digital cameras and scanners), editing... [25 Feb 2004]
A Disconnect Between Class a Modeling and CAD
White Paper Triumph found that it was difficult and time-consuming to create free form surfaces in a solid modeling application. So it started searching for a more automated method to develop efficient, aesthetically pleasing,... [15 Jan 2008]
LEGO Captures Original Design Intent: Defines Best-in-Practice Mold Design
White Paper LEGO Group wanted to improve product mold design process and rapidly develop free form surfaces. The company utilized free form surface mold design methodology and created surfaces from curves on the... [15 Jan 2008]
Siemens Case Study: Bruckner Maschinenbau GmbH
White Paper Bruckner's machines are large assemblies yet they also contain parts with freeform surfaces. They wanted to accurately represent large assemblies as well as parts with freeform surfaces with speed... [15 Jan 2008]
Phillips Plastics' Focus on Innovation and Time-to-Market Enable Rapid Development of Sleek, Patented Chemical Splash Goggles
White Paper The point data from the scan was converted into surfaces, creating a digital version of the head in NX. With this as a start, and some baseline data such as lens thickness criteria determined by an optics expert, the... [15 Jan 2008]
