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Howto:Illuminate faces: Difference between revisions
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→Illuminate during dark: explanation of the 1.57 horizon
Michaelfavor (talk | contribs) m (→Changing illumination color: typo) |
Paul Richter (talk | contribs) (→Illuminate during dark: explanation of the 1.57 horizon) |
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===Illuminate during dark=== | ===Illuminate during dark=== | ||
If you want a face to illuminate during dark we use the sun angle property (/sim/time/sun-angle-rad). | If you want a face to illuminate during dark we use the sun angle property (/sim/time/sun-angle-rad). The value is expressed in radians from the zenith, so a common value where our face should start illuminate is pi/2, or 1.57, right on the horizon. But you could change the value if you want to illuminate earlier or later. Depends on your needs. | ||
'''To turn lights on if the sky is dark:''' | '''To turn lights on if the sky is dark:''' | ||