Here’s a 1996 mock up of what SOFTIMAGE|3D might have looked like in an alternate universe.
eX-SI
ICE, scripting, and other tech stuff about Softimage aka XSI
Here’s a 1996 mock up of what SOFTIMAGE|3D might have looked like in an alternate universe.
eX-SI 
As discussed, this is a visual basic mockup for Sumatra, aka XSI. In the Explorer, “Scene MO” means Scene Media Object. In the early Sumatra design, everything was called a Media Object, which came from the Digital Studio architecture underneath. Eventually we didn’t use any of that MO architecture and built our own operator architecture instead, internally called ActiveData.