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Atmospheric light scattering: Difference between revisions
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→Light scattering at dawn / dusk
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Similarly, from high altitude the curvature of earth is apparent by the terrain (or haze in the direction towards the sun being more brightly illuminated than the terrain or haze away from the sun. | Similarly, from high altitude the curvature of earth is apparent by the terrain (or haze in the direction towards the sun being more brightly illuminated than the terrain or haze away from the sun. | ||
Short of directly computing the light passing through the atmosphere, these effects can be taken into account by using lightfields, i.e. by changing the color and intensity of the sunlight dependent on the position and altitude of the illuminated vertex. However, even computing parametrized lightfields make a significant performance impact as compared to the rendering situation at noon. | |||