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NVIDIA Nalu 技術展示說明
Nalu [夏威夷語指海浪]是海神的女兒,在浮升至海面時讚嘆深海底生物的奧妙。NVIDIA® GeForce 6™ 6800 GPU提供充裕的效能,在畫面上描繪出柔順飄逸的長髮以及自然的皮膚影像。

NVIDIA Timbury 技術展示說明
Timbury Entonin Mudgett 是位專攻昆蟲學的科學家,但他從不會讓研究工作減低探險的興致。為了搜尋從未被發現的新物種,他的腳步遍及叢林、草原、洞穴,努力找尋稀有的昆蟲。

NVIDIA Clear Sailing 技術展示說明
一艘海盜船在大浪中急駛,試圖擺脫皇家海軍的追捕。NVIDIA® GeForce™ 6800 GPU迅速運算出急速航行的船隻,展現性能強悍的頂點與像素著色器,能夠在畫面中呈現前所未有的視覺特效。

Enlaces Relevantes
Technical Brief: The GeForce 6 Series of GPUs Image Quality
High Performance & Quality for Complex Visual Effects
Read about the superscalar architecture and the 64-bit texture filtering and blending of the GeForce 6 Series of GPUs in the attached technical brief (375KB PDF).




 High-Performance, High-Precision Effects

Richer, More Vibrant Images with the GeForce 6 Series of GPUs

The NVIDIA® GeForce™ 6 Series of GPUs delivers extraordinary new technologies that streamline the creation of stunning effects in games and other 3D real-time applications. The innovative new architecture gives developers the hardware power they need to create detailed, vibrant images that won’t tax your PC.

Superscalar Design
The NVIDIA GeForce 6 Series includes a totally new superscalar shader architecture, which doubles the number of operations that can be executed per cycle compared to traditional architectures. The result is a significant performance increase over single-shader non-scalar designs. In addition, the new architecture provides full 32-bit floating point precision—while still allowing for 16-bit mode—so developers can deliver higher quality images in a broader range of real-time situations. The superscalar design also provides increased programming flexibility. Increased performance, flexibility, and 32-bit native mode enable a host of complex computations and pixel operations, resulting in an unprecedented level of image sophistication in the latest bleeding-edge games and other real-time interactive applications.

64-Bit Texture Filtering and Blending
Did you know that the human eye is more sensitive to low intensities of light, and sees darker shades with more detail than high-intensity or bright light? Developers would like to take advantage of the subtle light, texture, and color intricacies that you see in the real world and put them in their games, so you can experience rich, detailed scenes that fully immerse you in their game environments.


  Lighting effects  
  Image courtesy of Paul Debevec  
  This image illustrates the use of high dynamic-range rendering. Note the photorealistic quality of the light; the incredible brightness of the sun shining through the windows and its reflections, as well as the rich color detail of the darker imagery.  

Until now, high dynamic-range (HDR) rendering—a technique for photorealistic rendering—was limited by graphics hardware capabilities. With NVIDIA’s 64-bit texture filtering and blending technology, based on the Industrial Light + Magic standard OpenEXR, the hardware barriers are removed. Now developers can easily take advantage of advanced shading, blending, filtering, and texturing capabilities to create accurate effects such as iridescence, motion blur, and soft shadows. In addition, the new GeForce GPUs include a new rotated-grid antialiasing system for more accurately depicted pixel colors.
effects_fig.2.jpg
Image courtesy of Microsoft
  The image on the left was taken without high dynamic range, and shows a blown out lighting effect on the window and floor. The image on the right, taken with high dynamic range, shows much more accurate lighting effects. In the image on the right, note the subtle lighting variations on the floor and on the nature scene on the wall versus the harsh, over-lit conditions in the image on the left.  
A New Era of Effects
The new GeForce 6 Series’ superscalar architecture with its native 32-bit pipeline and advanced imaging features, translates into speed and precision improvements across a broad range of imaging operations and effects. Many operations become practical for the first time in real-time applications and games, bringing life and cinematic realism to the PC. Without compromising speed for quality, developers can implement stunning visual effects throughout complex scenes and digital worlds. Revolutionary innovations like 64-bit texture filtering and blending allow for higher visual quality and more unique effects by maintaining floating point precision in all aspects of rendering, including shading, texturing, filtering, and blending. The NVIDIA GeForce 6 Series is poised to break through the final barriers to achieving cinematic realism in virtual worlds. Soon, even the experts will be doing double takes—trying to discern computer-generated scenes from filmed sequences.






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