Yes, maya refers to some funky patch based workflow as sub-d modeling, which I think is correct in that it is a form of sub-d modeling, but it is not exclusively so. Here are a variety of terms from various apps that refer to sub-division modeling in some form: Metanurbs(lightwave) Nurms(max) Turbosmooth(max)…
@Yerus I'm using Cinema 4D. I did delete the edges and vertices as I understood your explanation. I also ran the Optimize command (similar to Maya's Merge/Cleanup Geometry command). I deleted the middle edge to create a quad, but it created a bump in the geometry when subdivided. Just to make sure it wasn't the Subdivision…
Well I know some other person here did not realise that the 3 hotkey in maya was the subd preview. From what I remember when I used maya there was another thing called subd where there was local subdivision and is different from what we are talking about here.