I think this is closer to what you would get with adaptive subdivision in the Maya viewport and USD viewers, or adaptive subdivision in a renderer like Arnold or PRMan. As explained by here:īlender always positions vertices on the limit surface, what you get when you would subdivide the surface an infinite number of times. That’s not the only reason for moving vertices to the limit surface. So the idea of new subdiv is to have smoothest surface. It looks like the problem may be in the new “limit surface” feature in the subdivision algorithm. You can continue to subdivide from any level and you will always get the same result There is no such problem with standard Catmull-Clark. As an example a model with two modifiers of 1 level differs from a model with a single modifier with 2 levels and the differences are quite significant (more iterations - bigger difference). In the case of a normal Catmull-Clark, this does not create any problems, but with the new algorithm, the model loses volume every time it subdivided.ģ - Unpredictable behavior inside Blender. The transition to each next stage involves subdividing the model. Regularly, the modeling pipeline divided by stages: creating the overall shape, medium parts, and small parts. Less noticeable in dense organic models.Ģ - Modeling issue.

The difference is most noticeable on large low-polygonal models (for example parts of terrain) and hard-surface models with exact shape. Low-poly models seriously lose volume during subdividing. In the case of a dense cage, the model looks just a little different (smoother). This causes a difference in the shape of the same model in the Blender and other software.

I think I need to summarize the list of problems here:ġ - The algorithm doesn’t work like in other programs.

Sub d modeling rhino