Physical Sun/Sky
In: 3D View > HDRI Tools
Description
Physical Sun and Sky implementation based on Hosek-Wikie skylight model. Provides an excellent base for an artifical HDRI.
Parameters
Sun Position
range = [0,1]x[0,1] (longitude-latitude angles)
Turbidity 1.0 - 10.0
Turbidity ranges from 1 to 10
Albedo 0.0 - 1.0
Albedo ranges from 0 to 1.
Ground Color (Color value)
Color of the ground plane.
Exposure (EV) -1.0 - 4.0
Exposure value of resulting output.
Sun Size 0.0 - 4.0
Scale of the Sun, any value different than 1 is non physically correct. Value has subtle effects!
Sun Intensity 0.0 - 1.0
Intensity of sun disc. Sun disc is fairly small so effect is not immediately visible.
Sky Intensity 0.0 - 1.0
Intensity of the sky. Also affects flaring of sun in the sky, not the disc itself.
Examples
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