As you can see in this image, I have some very curvy surfaces that make up a floor. When I render it out, I get some stepping. Used the highest quality settings without any effect. Any ideas?
You can create custom meshes for your objects. In this case, you could do better by not using the simple UI for rendering meshes, and instead use the detailed controls…
…Paying attention to the maximum edge length, and to some degree: the density. What maximum edge length does is: no edge segment longer than what you type in.
Obviously, what you want depends on how big the floor will be. I suggest sneaking up on a setting like that to make sure your computer can handle it. For a house say down to 1mm or .0625" If your floor is like a colosseum or mall floor, I would try larger settings first, such as 10cm/100mm or 6".
You might be able to save memory by keeping the minimum setting larger as to keep the mesher from making things that can’t be seen or carved by a CNC.
[ If you save the file normally, it would load fast. If you save small, it will discard the meshes, take a long time to load, but save file space. ]
@Pascal, I wonder if the the maximum edge-length could also adjusted (more?) with the simple settings.
What does this mean, exactly? What settings? the relevant ones are the Mesh settings in Document Properties, or Custom mesh in object properties - are those the ones you are referring to?
See also Rhino Mesh Settings [McNeel Wiki]
-Pascal
I usually set the maximum angle in such cases to 1 or 2 degrees or even less. Long slow curves like that need more subdivisions than “normal” objects where it’s less visible.
If I also have areas in the same object where that would create extremely dense meshes, I counter that by a higher minimum poly size that keeps things in balance (for instance in fillets).
Cheers,
Tom