Polygon Pictures

Background
Polygon Pictures is a Japanese 3DCG animation studio.

(1993)
Logo: On a black or white background, we see a bunch of multicolored squares circling all together. The word, POLYGON PICTURES appeared in gold.

Technique: The circling squares.

Music/Sounds: A bunch of magical fairy dusts and castanets sounds.

Availability: Seen on home video releases of Genki Genki Nontan and on a demo reel of the company dated 1993.