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The answer to these questions is, surprisingly, probably not.

Does the display accurately turn the digital image back into light? If a pixel's numerical value is doubled, will the CRT, LCD, or other similar device display an image that appears twice as bright?.

Does a producer of synthetic images, such as a renderer, create digital images whose pixel values are proportional to what light would really do in the situation they are simulating?.

Does the capture of the light (by a camera, scanner, and so on) result in a digital image whose numerical values accurately represent the relative light levels that were present? If twice as many photons hit the sensor, will its numerical value be twice as high?.

You may be surprised to learn that there are several steps in the digital image creation pipeline where things can go awry. If you are interested in high-quality rendering, you might wonder if the images displayed on your CRT, LCD, film, or paper will result in light patterns that are similar enough to the "real world" situation so that your eye will perceive them as realistic. 24.2 Light, Displays, and Color Spaces 24.2.1 Problems with Digital Image Capture, Creation, and Display Proper gamma correction is probably the easiest, most inexpensive, and most widely applicable technique for improving image quality in real-time applications. However, a subtle nonlinear property of almost every device that captures or displays digital images necessitates careful processing of textures and frame buffers to ensure that all this lighting and shading is computed and displayed correctly. The performance and programmability of modern GPUs allow highly realistic lighting and shading to be achieved in real time. You can also subscribe to our Developer News Feed to get notifications of new material on the site.Ĭhapter 24. The CD content, including demos and content, is available on the web and for download.

#GAMMA CONTROL DIRECTX 11 CODE FOR FREE#

Features DirectX 11 API to access the shader model 5.GPU Gems 3 GPU Gems 3 is now available for free online!.

Dynamic Video Range Control enables user to control levels of black and white during playback. Brighter Whites processing increases the blue value of white colors for brighter and more vivid video playback, and independent Video Gamma Control allows you to set video gamma independently from Windows desktop for a better viewing experience.

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Enhanced UVD 2 now supports a hardware acceleration decode of dual 1080p HD video streams.

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Watch the hottest Blu-ray movies or other HD content at full 1080p display resolution and beyond and enjoy a more feature rich experience with enhanced Unified Video Decoder 2 (UVD 2). Support of content protected, high bandwidth, 7.1 channels of surround sound over HDMI.Īvivo™ Technology Enhanced Unified Video Decoder 2 (UVD 2) DirectCompute improves PC performance by taking on some or all of a DirectX 11-enabled application's processing load, freeing up the computer's main processor to take on additional tasks.ĭolby® TrueHD and DTSHD Master Audio™ Support.Multi-threading support for DirectX® 11 accelerates rendering by leveraging all the CPU cores to enable overall faster gaming performance.HDR Texture compression delivers an intense level visual detail without increasing graphics memory footprint with efficiency and incredible image quality.Tessellation is now available to PC developers for real-time rendering with ultra-realistic characters and an incredible level of detail with 3D images.The VisionTek Radeon HD 5450 Series GPUs fully support Microsoft DirectX® 11, enabling the following:

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Supports Windows 7 and future DirectX®11 games giving users incredible system performance in an energy efficient card that is easy to install with no external power supply needed.

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At the "heart" of the entertainment experience on the PC, things like video playback, editing and transferring content to portable media players are now fast and easy. Designed to deliver a feature laden gaming/computing experience, Radeon™ HD 5450 enables a seamless HD gaming experience with amazing image quality.

The VisionTek Radeon™ HD 5450 2GB PCIe 2.1 x16 Graphics Card offers the most features and functionality in its class with complete DirectX 11 support and the world's most advanced graphics, display features and technologies.