Temporal and spatial anti-aliasing for rendering reflections on water waves  

作　　者：Namo Podee Nelson Max Kei Iwasaki Yoshinori Dobashi 

机构地区：[1]Hokkaido University,Sapporo,060-0814,Japan [2]University of California,Davis,95616,USA [3]Wakayama University,Wakayama,640-8441,Japan

出　　处：《Computational Visual Media》2021年第2期201-215,共15页计算可视媒体（英文版）

基　　金：supported by JSPS KAKENHI Grant Nos.JP15H05924,JP18H03348,and JP20H05954.

摘　　要：The reflection of a bright light source on a dynamic surface such as water with waves can be difficult to render well in real time due to reflection aliasing and flickering.In this paper,we propose a solution to this problem by approximating the reflection direction distribution for the water surface as an elliptical Gaussian distribution.Then we analytically integrate the reflection contribution throughout the rendering interval time.Our method can render in real time an animation of the time integrated reflection of a spherical light source on highly dynamic waves with reduced aliasing and flickering.

关 键 词：real-time rendering ANTI-ALIASING reflection water surface water waves elliptical Gaussian 

分 类 号：P71[天文地球—海洋科学] TP391.41[自动化与计算机技术—计算机应用技术]