Viridis

Background
Viridis was a video game developer founded around 1993 or 1994, not far from Philips Media's American offices. They helped develop a few titles for Philips, including the infamous Zelda's Adventure, the only one of the Zelda CD-i games with FMV and a live-action look. However, due to the inexperienced staff, as well as the failure of the CD-i, most of their other games were buggy and not released, and after a few more games on PC, they closed down in 1996. Other than a few sources, there's very little info on the developer.

1st Logo (June 5, 1994)
Visuals: On a black background, a golden chakram-like ring, along with four dark green cubes revolving around the top of the ring, moves into frame. Each side of the dark green cubes have a golden diagonal line on them. The cubes eventually meet in the center of the ring as it moves from the center, and flips to the bottom right of the screen. It then flips several times, each time "launching" a cube to the left center of the screen, forming a dark green square with a golden "V" on it. As the square finishes up, the ring flies off-screen and the background fades to something that looks like a piece of parchment. The text "IRIDIS" fades in beside the square, creating "VIRIDIS", and "Produced By" appears just above the left side of the logo.

Technique: CGI.

Audio: A simple bass/snare drum beat, which is followed by a new-age synth theme.

Availability: So far, it has been spotted on Zelda's Adventure for the CD-i.

2nd Logo (March 31, 1996)
Visuals: On a black background, we see "VIRIDIS" from the last logo, but without the square around the now-dark green "V", flipping in.

Technique: 2D animation.

Audio: Wind blowing accompanied by a choir chord and a bell when the wordmark finishes flipping in.

Availability: So far, it has been spotted on Savage: The Ultimate Quest for Survival for the Windows 3.1.