Rendering Outdoor Light Scattering in Real Time
Atmospheric scattering of light is important in outdoor scenes. It changes sunlight from the pale red of dawn to the bright yellow of midday and back again. It determines the color and brightness of the sky throughout the day, and it cues us to the distance of objects by shifting their colors. All these effects vary not only based on time of day, but also depending on weather, pollution and other factors. On planets with different atmospheric compositions, these effects would differ significantly from those seen on Earth. In this paper, we will explain the ways in which atmosphere affects light, including the underlying theory. We will show the deficiencies of the commonly-used fog model, and describe models which are more physically accurate. [via]
http://ati.amd.com/developer/dx9/ATI-LightSca...
Tags: 
atmospheric scattering, atmospheric, scattering, real time rendering, rendering, outdoor light, paper, light, 3d light, outdoor, 3d, ...
atmospheric scattering, atmospheric, scattering, real time rendering, rendering, outdoor light, paper, light, 3d light, outdoor, 3d, ...
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