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LSL Wiki : llCloud

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float llCloud(vector offset)

Returns the cloud density at the current position + offset.

How clouds work:

The cloud seed/growth/disipation algorithm uses a solenoidal vector field, which is a vector field with zero-divergence: nabla dot v = 0

This condition is satisfied whenever v has a vector potential, because if v = nabla times A then nabla dot v = nabla dot (nabla times A) = 0.

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Functions | Simulator | Weather
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