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devices and methods for robust new scanning for real-time beleuchtungsu00e4nderung objects in natural beleuchtungsumgebungen

机译:用于对自然自然环境中的实时自然环境对象进行鲁棒性新扫描的设备和方法

摘要

The present invention is directed to a enhanced Precomputed Radiance Transfer (PRT) system employing an algorithm to compute a PRT signal over a surface mesh and subdividing facets of the mesh to increase the number of surface vertices such that the spatial variation of the transfer signal is resolved sufficiently everywhere on the surface. The method of this system ensures that radiance transfer shading produces colors of sufficient accuracy all over the surface. In certain embodiments, transfer is computed only at surface vertices, although this does result in a certain amount of acceptable aliasing and blurring of surface lighting detail in regions where the tessellation is too coarse. Furthermore, the method comprises a spatial and density sampling techniques that measures the transfer signal to a desirable appropriate resolution while minimizing aliasing. Once computed, the signal is represented as compactly as possible to minimize storage and runtime computation requirements.
机译:本发明针对一种增强的预计算辐射传输(PRT)系统,该系统采用一种算法来计算表面网格上的PRT信号,并细分网格的小平面以增加表面顶点的数量,从而使传输信号的空间变化为在表面上的任何地方都能充分分解。该系统的方法可确保辐射传递阴影在整个表面上产生足够准确的颜色。在某些实施例中,仅在表面顶点处计算转移,尽管这确实会导致细分程度过于粗糙的区域中表面照明细节出现一定程度的可接受混叠和模糊。此外,该方法包括空间和密度采样技术,该技术将传输信号测量到期望的适当分辨率,同时使混叠最小化。计算完成后,信号将尽可能紧凑地表示,以最小化存储和运行时计算要求。

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