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

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.

Automated summary

This paper proposes a solution to the difficulty of rendering the reflection of a bright light source on dynamic surfaces like water with waves in real time. By approximating the reflection direction distribution as an elliptical Gaussian distribution and integrating the reflection contribution analytically, the method can render an animation of the time integrated reflection of a spherical light source on highly dynamic waves in real time with reduced aliasing and flickering.