IrisVision is an adaptation of the graphics pipeline from the Personal IRIS workstation to the Micro Channel architecture and consumer ISA buses of most modern PCs of the day.
Initially, the MCA card was re-designed to offer some features critical for the PC market, including standard 15-pin VGA-style video output and a 15-pin VGA passthrough input connector.
It would occupy 2 16-bit ISA slots and use the identical daughter cards as the MCA (and IBM) versions of the board set.The IrisVision was spun off as Pellucid, which later was taken over by Media Vision.
To take advantage of the 80386 and 80486's 32-bit extensions and to enable large memory up to 2 GB, IrisVision came with a proprietary 32-bit C compiler and the PharLap 32-bit DOS extender.
In contrast, in the IBM personal computing world, VGA was just barely coming into the spotlight when IrisVision came out on the market.
IrisVision fell into relative obscurity, as IRIS GL hadn't reached its pinnacle as the default 3D API then was PHIGS, and few people had any real idea of what to do with 3D graphics (outside of the CAD industry).