arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.14394cs.GR
收藏

带符号距离场动态漫反射全局光照

Signed Distance Fields Dynamic Diffuse Global Illumination

Jinkai Hu, Milo Yip, G. Elias Alonso, Shihao Gu, Xiangjun Tang, Xiaogang Jin

摘要:

全局光照(GI)在真实感绘制领域中具有极其重要的意义。然而,它的计算一直是非常复杂的,特别是扩散GI。现有技术的实时GI方法具有不同性质的限制,例如光泄漏、性能问题、特殊硬件要求、噪声破坏、反弹数限制等。为了克服这些局限性,我们提出了一种新的方法计算动态扩散GI与有符号的距离场近似的场景和离散的空间域的辐照度函数。通过这种方法,我们能够估计动态照明和几何形状的实时漫射GI,而无需任何预先计算并支持多反弹GI,同时提供高质量的照明和高性能。我们的算法还能够实现更好的可扩展性,并管理大型开放场景和室内高细节场景,而不会被噪声破坏。

英文摘要:

Global Illumination (GI) is of utmost importance in the field of photo-realistic rendering. However, its computation has always been very complex, especially diffuse GI. State of the art real-time GI methods have limitations of different nature, such as light leaking, performance issues, special hardware requirements, noise corruption, bounce number limitations, among others. To overcome these limitations, we propose a novel approach of computing dynamic diffuse GI with a signed distance fields approximation of the scene and discretizing the space domain of the irradiance function. With this approach, we are able to estimate real-time diffuse GI for dynamic lighting and geometry, without any precomputations and supporting multi-bounce GI, providing good quality lighting and high performance at the same time. Our algorithm is also able to achieve better scalability, and manage both large open scenes and indoor high-detailed scenes without being corrupted by noise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑