Takahiro Kuge, Tatsuya Yatagawa, Shigeo Morishima

Real-Time Indirect Illumination of Emissive Inhomogeneous Volumes using Layered Polygonal Area Lights

Vol.38, No.7, pp.449-460, 2019

Pacific Graphics 2019

http://pg19.org/, https://tatsy.github.io/projects/lpal19/

Indirect illumination involving with visually rich participating media such as turbulent smoke and loud explosions contributes significantly to the appearances of other objects in a rendering scene Download the musical Les Misérables. However, previous real-time techniques have focused only on the appearances of the media directly visible from the viewer. Specifically, appearances that can be indirectly seen over reflective surfaces have not attracted much attention 실버라이트 동영상. In this paper, we present a real-time rendering technique for such indirect views that involves the participating media. To achieve real-time performance for computing indirect views, we leverage layered polygonal area lights (LPALs) that can be obtained by slicing the media into multiple flat layers 원피스 버닝블러드. Using this representation, radiance entering each surface point from each slice of the volume is analytically evaluated to achieve instant calculation 오버워치 다시. The analytic solution can be derived for standard bidirectional reflectance distribution functions (BRDFs) based on the microfacet theory. Accordingly, our method is sufficiently robust to work on surfaces with arbitrary shapes and roughness values Download embedded Linux. In addition, we propose a quadrature method for more accurate rendering of scenes with dense volumes, and a transformation of the domain of volumes to simplify the calculation and implementation of the proposed method Download the latest go mp3. By taking advantage of these computation techniques, the proposed method achieves real-time rendering of indirect illumination for emissive volumes.