结合层次遮挡图和图像缓存的快速消隐绘制算法

摘要

随着虚拟现实技术应用的日益广泛,场景的规模越来越大,虚拟场景画面的实时显示成为整个虚拟现实系统成败的关键技术.提出了一个结合层次遮挡图和图像缓存的快速消隐绘制算法,该算法不仅在图形绘制速度和图像质量之间获得了一个很好的折衷,而且可适合各种复杂度场景的快速绘制需要.对可能可见的近景、中景使用几何绘制,对可能可见的远景实现了图像和几何混合的加速绘制.实验表明,该算法在实践中具有良好的效果.%article put forward a fast hidden removal plotting algorithm that combines hierarchical covered image with image cache.This algorithm can not only obtain a good compromise between plotting speed and image quality,but be adapted to fast plotting requirement for various complicated scenes.It can also make geometrical plotting for visual near and medium scenes,realize image and geometrical mixed plotting for possible visual distant view.The experiment demonstres that this algorithm have good effect in practice.