Sci-Fi CGI: Grass Cave

This is a cavernous entrance to a big hole in the north Ireland.

The photosynthesis of grass spreading on the wall seems not to depend on the sun. They probably rely on a light emitting bodies which routinely hurl themselves into the big hole.

We tentatively call it “Unidentified light-emitting object”, or ULEO.

grass_cave_material=basic1_2 grass_cave_material=random1_1

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