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NVIDIA Shows Interactive Ray Tracing On GPUs 260

MojoKid writes "During SIGGRAPH 2008 in Los Angeles, NVIDIA is demonstrating a fully interactive GPU-based ray tracer. The demo is based purely on NVIDIA GPU technology, and according to NVIDIA the ray tracer shows linear scaling during rendering of a complex, two-million polygon, anti-aliased automotive styling application. The article reproduces screenshots from NVIDIA's demo. At three bounces (rays being traced as they bounce three times through a scene), performance is demonstrated at up to 30fps at HD resolutions of 1920x1080 for an image-based lighting paint shader, ray-traced shadows, reflections and refractions running on four next-generation Quadro GPUs in an NVIDIA Quadro Plex 2100 D4 Visual Computing System." Meanwhile reader arcticstoat passes on Intel's latest claim that rasterisation will die out the next few years, possibly in favour of ray tracing.

YouTube Stands Up To IOC Over Free Tibet Video 187

Ian Lamont writes "The International Olympic Committee has withdrawn a DCMA takedown notice that targeted a two-minute long YouTube video of a Students for a Free Tibet protest at the Chinese consulate in New York. The video shows protesters gathering outside the building at night and projecting images of the Olympic symbol, 'tank man,' Tibetan riot footage and clips of victims of the Chinese police crackdown in Tibet. After receiving the request, YouTube contacted the IOC and asked if it really planned to pursue a claim. The IOC retracted the notice and the video was reposted within hours. Stanford Law School's Center for Internet and Society praised YouTube for 'going out of its way to do more than it's required to do under the law to protect free expression.'"
The Media

BBC's Open Player Claims Not Followed Through 311

ruphus13 writes "BBC's iPlayer was originally built on Microsoft's DRM-protected technology, and has never really been liked by folks like the FSF. The BBC is trying to play nice, though, recently claiming, 'the BBC has always been a strong advocate and driver of open industry standards. Without these standards, TV and radio broadcasting would simply not function. I believe that the time has come for the BBC to start adopting open standards such as H.264 and AAC for our audio and video services on the web.' This article argues that actions speak louder than words, and this is where the BBC falls short. 'The fact that both AAC and H.264 are encumbered with patent licenses that make their distribution under free licenses problematic flies in the face of this definition. It's good to see a major organization like the BBC switching from closely held secretive codecs to more widespread and documented ones. But it would be even better to see them throw their considerable weight behind some truly open formats.'"

Strange Ubuntu/Vista Compatibility Bug, Solved 140

Walter Vos writes "Since I've been running Vista and Ubuntu in dual boot with a shared FAT32 partition for my personal folders, I've been seeing some strange compatibility issues between these two operating systems. Somehow Vista locks the folders on the FAT32 partition that are used for folders like Documents, Downloads, etc. A blogpost I wrote gives a detailed description of the problem and a fix for it."

How Can You Measure a Wiki's Worth? 78

moldar writes "I have been involved in a major project to migrate documentation from multiple sources to a wiki (Media Wiki, if you must know). Now, the PHBs are all asking questions about how organized the data is. I've already googled for various wiki metrics ideas, but mostly they focus on page counts, average page sizes, rates of edits, etc. Can anybody suggest better ways of measuring the quality of a wiki? Things like uncategorized pages, articles that are too small, etc? Any help or fresh ideas would be appreciated."

Using Photographs To Enhance Videos 102

seussman71 writes with a link to some very interesting research out of the University of Washington that employs "a method of using high quality photographs to enhance a video taken of the same subject. The project page gives a good overview of what they are doing and the video on the page gives some really nice examples of how their technology works. Hopefully someone can take the technology and run with it, but one thing's for sure: this could make amateur video-making look even better than it does now." And if adding mustaches would improve your opinion of the people in amateur videos, check out the unwrap-mosaics technique from Microsoft Research.

C'est magnifique, mais ce n'est pas l'Informatique. -- Bosquet [on seeing the IBM 4341]