An analytic visible surface algorithm for independent pixel processing
An analytic visible surface algorithm for independent pixel processing
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DOI：
10.1145/800031.808586
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发表时间：
1984-01
期刊：
影响因子：
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通讯作者：
E. Catmull
中科院分区：
文献类型：
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作者：
E. Catmull
提出了一种算法，解决了在每个像素独立的可见表面的问题。这允许将运动模糊和景深模糊集成到算法中。它还允许并行处理。该算法适用于大量的多边形。使用了解析高斯滤波器。滤波器可以针对每个多边形被不同地拉长或缩放，以调整其速度或距焦平面的距离。这是通过在解决隐藏曲面问题之前缩小或缩放多边形来实现的，以便在对象相互遮挡时正确呈现模糊。
An algorithm is presented that solves the visible surface problem at each pixel independently. This allows motion blur and depth of field blurring to be integrated into the algorithm. It also allows parallel processing. The algorithm works on large numbers of polygons. An analytic Gaussian filter is used. The filter can be elongated or scaled differently for each polygon to adjust for its speed or distance from the focal plane. This is achieved by shrinking or scaling the polygon prior to solving the hidden surface problem so that blurring is correctly presented when objects obscure each other.