In this paper, we extend the light field probe method to handle dynamic light sources. The key idea is to generate distance and material information at the light source position on-the-fly and store them in a data structure called light-G-buffer. Based on this data structure and the precomputed geometric information, an efficient method is proposed to reconstruct the (ir)radiance fields for all light field probes, from which indirect diffuse and glossy illumination effects can be achieved for dynamic light sources. Furthermore, we show the ability of our method to handle multi-bounce lighting and accommodate multi-light environments at the cost of shading accuracy. Experiments show that our approach achieves comparable effects to the precomputed light field probe method at a real-time frame rate and can further handle multiple dynamic light sources.

在本文中，我们将光场探测方法扩展为处理动态光源。关键思想是在光源位置即时生成距离和材质信息，并将它们存储在称为light-G-buffer的数据结构中。基于这种数据结构和预先计算的几何信息，提出了一种有效的方法来重建所有光场探头的（ir）辐射场，从而可以为动态光源实现间接的漫反射和光泽照明效果。此外，我们展示了我们的方法能够以阴影精确度为代价来处理多反射照明并适应多照明环境的能力。实验表明，我们的方法在实时帧速率下可以达到与预先计算的光场探测方法相当的效果，并且可以进一步处理多个动态光源。