A generic framework for physical light transport

A generic framework for physical light transport
复制标题

物理光传输的通用框架

DOI:
10.1145/3476576.3476715
复制
发表时间:
2021
期刊:
ACM Transactions on Graphics (TOG)
影响因子:
--
通讯作者:
Ling
Ling
中科院分区:
--
文献类型:
--
作者:
Shlomi Steinberg;Ling

文献摘要

参考文献

被引文献

相似文献

物理上精确的渲染通常需要考虑光的波动性质。在计算机图形学中,这几乎完全是局部完成的,即在衍射现象出现的微米尺度上。然而,光的统计特性,决定了它的相干特性和它引起波干涉效应的能力,在全球范围内演变:这些特性在,例如,与表面的相互作用、通过参与介质的扩散以及简单地通过传播。在本文中,我们推导出第一个全球光输运框架,能够说明这些性质的光,因此,是完全符合麦克斯韦的电磁理论。我们表明,我们的框架是一个概括的经典,基于辐射测量的光传输-突出的计算机图形-并保留了一些有吸引力的属性。最后,作为概念的证明,我们将所提出的框架应用于渲染中的一些实际问题,并验证了光学中研究得很好的方法。
Physically accurate rendering often calls for taking the wave nature of light into consideration. In computer graphics, this is done almost exclusively locally, i.e. on a micrometre scale where the diffractive phenomena arise. However, the statistical properties of light, that dictate its coherence characteristics and its capacity to give rise to wave interference effects, evolve globally: these properties change on, e.g., interaction with a surface, diffusion by participating media and simply by propagation. In this paper, we derive the first global light transport framework that is able to account for these properties of light and, therefore, is fully consistent with Maxwell's electromagnetic theory. We show that our framework is a generalization of the classical, radiometry-based light transport---prominent in computer graphics---and retains some of its attractive properties. Finally, as a proof of concept, we apply the presented framework to a few practical problems in rendering and validate against well-studied methods in optics.
DOI: 10.1145/3197517.3201351
发表时间: 2018-07
期刊: ACM Transactions on Graphics (TOG)
影响因子: --
作者:
Ling-Qi Yan;Miloš Hašan;B. Walter;Steve Marschner;R. Ramamoorthi
通讯作者: Ling-Qi Yan;Miloš Hašan;B. Walter;Steve Marschner;R. Ramamoorthi
DOI: 10.1145/3414685.3417813
发表时间: 2020-11
期刊: ACM Transactions on Graphics (TOG)
影响因子: --
作者:
Chen Bar;Ioannis Gkioulekas;Anat Levin
通讯作者: Chen Bar;Ioannis Gkioulekas;Anat Levin