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I'm new to blender and have been playing round with a simple cloth and collision animation made from a simple UV sphere and plane.

I added a subdivision to the sphere to smooth it out and subdivisions to the plane to allow to wrap.

enter image description here enter image description here

Then I created the collision process and ran the animation.

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However, even though my sphere is as smooth as it can be - it appears to have ridges when the cloth is placed over it.

enter image description here

It's as if the subdivision on the sphere is less than it appears.

I've attached a file for reference in case it's not showing clearly on screen

NiceShoes
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    It seems pretty obvious to me that you did not smooth out the sphere when you subdivided it. I recommend starting again and just creating a new sphere, but setting the correct number of rings and loops to start with. Either that, or just select all and “Transform -> To sphere.” – TheLabCat Nov 09 '21 at 20:29
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    As TheLabCat wrote you probably baked the sim, then added subdivisions to the sphere to make it smoother. But you did not delete the bake. Now Blender still uses the old blocky shape. To fix this just delete the bake (Settings > Cache) and bake it again. Then it will look smooth. – Blunder Nov 09 '21 at 20:56

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As Blunder and TheLabCat already mentioned - just hit "delete all bakes" and run the simulation again (e.g. just by tapping spacebar in 3D View or hit "bake" after deleting the bake)

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result:

enter image description here

Chris
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In addition to the smoothing, you can adjust some of the parameters of the simulation to change, for instance, how stiff the cloth is. There are a set of presets you can select from using the drop down menu in the Cloth simulation panel header:

Cloth simulation drop down

I suggest playing with those, and then adjusting the parameters of the simulation to taste.

To greatly reduce folding, first set the defaults to Silk, then go to the Physical Properties tab, reduce the Air Viscosity, and change the Bending Model to linear:

Physical Properties Tab with low air viscosity and linear bending model

If you do that and redo the bake you get this at frame 34:

mostly smooth drape

Marty Fouts
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