Sciweavers

Share
PG
2007
IEEE

Fogshop: Real-Time Design and Rendering of Inhomogeneous, Single-Scattering Media

10 years 10 months ago
Fogshop: Real-Time Design and Rendering of Inhomogeneous, Single-Scattering Media
We describe a new, analytic approximation to the airlight integral from scattering media whose density is modeled as a sum of Gaussians. The approximation supports real-time rendering of inhomogeneous media including their shadowing and scattering effects. For each Gaussian, this approximation samples the scattering integrand at the projection of its center along the view ray but models attenuation and shadowing with respect to the other Gaussians by integrating density along the fixed path from light source to 3D center to view point. Our method handles isotropic, single-scattering media illuminated by point light sources or low-frequency lighting environments. We also generalize models for reflectance of surfaces from constant-density to inhomogeneous media, using simple optical depth averaging in the direction of the light source or all around the receiver point. Our real-time renderer is incorporated into a system for real-time design and preview of realistic animated fog, steam...
Kun Zhou, Qiming Hou, Minmin Gong, John Snyder, Ba
Added 04 Jun 2010
Updated 04 Jun 2010
Type Conference
Year 2007
Where PG
Authors Kun Zhou, Qiming Hou, Minmin Gong, John Snyder, Baining Guo, Heung-Yeung Shum
Comments (0)
books