I hadn't heard of it, but a quick google shows that it's (or rather, was) a closed-source 3d modeler that was discontinued in the late 1990's. That is another situation than the one under discussion; API backwards compatibility doesn't even apply to that product, that product would require a way to run native-code binaries, written for (presumably) Windows (or otherwise, some Unixes), unmodified on the iPad.
The point of my last sentence was that it's impossible, because that long ago Java, iPads, Cocoa etc. didn't even exist. For somebody who wants to port a C++ codebase from those days to a mobile platform, having to re-do the 3d rendering (which is only a very small part of any well-engineered large application anyway) in a programmable pipeline is the least of his worries.
The point of my last sentence was that it's impossible, because that long ago Java, iPads, Cocoa etc. didn't even exist. For somebody who wants to port a C++ codebase from those days to a mobile platform, having to re-do the 3d rendering (which is only a very small part of any well-engineered large application anyway) in a programmable pipeline is the least of his worries.