Heli
Find your natural light
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median hrs / day
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min
—
max
⊙
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Floor
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1
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Click the building outline on the map to place a window. You can place multiple windows.
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© 2026 Rahul Das
Satellite
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Sun compass
3D
Sunlit
Shadowed
Not facing
By hour
By month
Effective
i
Measures light quality, not just quantity — direct, mid-sky sun counts more than low or grazing light.
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© 2026 Rahul Das