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首页> 外文会议>Conference on Technologies for Synthetic Environments: Hardware-in-the-Loop Testing VIII Apr 21-22, 2003 Orlando, Florida, USA >Utilizing commercial off-the-shelf PC graphics hardware for real-time hardware-in-the-loop scene generation
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Utilizing commercial off-the-shelf PC graphics hardware for real-time hardware-in-the-loop scene generation

机译：利用现成的商用PC图形硬件实时生成硬件在环场景

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摘要

Stressing requirements for real-time hardware-in-the-loop (HWIL) scene generation include high performance and high precision. Scene generation frame rates in excess of 100 Hz are common to stimulate fast frame rate sensors. In addition, high bit precision requirements from 12 bits to 24 bits for rendered imagery depend on sensor dynamic ranges and projector capabilities. Until recently, the use of PC-based graphics hardware was unsuitable for high-end scene generation because of the inability of meeting these requirements. However, PC graphics chip technology has evolved to a level where these requirements can now be satisfied. The latest generation of PC graphics chips can perform computations with 32-bit floating-point precision per color component throughout the entire graphics pipeline. This high precision coupled with the flexibility of programmable graphics allows for targeted rendering algorithms specifically designed for various types of sensors including visual, infrared, and ladar. Graphics performance also has increased with each successive chip generation. Integration of this technology into a commercially available scalar multi-channel system with frame synchronization provides a solution with the highest performance possible on a PC-based platform. By partitioning the rendering of a frame among each synchronized system unit, the frame rate performance can be increased to meet the sensor requirements.
机译：实时硬件在环（HWIL）场景生成的重点要求包括高性能和高精度。超过100 Hz的场景生成帧速率通常会刺激快速帧速率传感器。此外，渲染图像从12位到24位的高位精度要求取决于传感器动态范围和投影仪功能。直到最近，由于无法满足这些要求，因此不适合使用基于PC的图形硬件来生成高端场景。但是，PC图形芯片技术已经发展到可以满足这些要求的水平。最新一代的PC图形芯片可以在整个图形流水线中以每个颜色分量32位浮点精度执行计算。这种高精度与可编程图形的灵活性相结合，可实现针对性的渲染算法，专门针对各种类型的传感器（包括视觉，红外和激光传感器）设计。图形性能也随着每个后续芯片的产生而提高。将该技术集成到具有帧同步功能的市售标量多通道系统中，可提供基于PC平台的最高性能解决方案。通过在每个同步系统单元之间划分帧的渲染，可以提高帧速率性能以满足传感器要求。

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