Hi. I was just starting to learn the program, and I was faced with the fact that the brush DragRect creates a strangely pixelated print. I have the latest drivers for my graphics card, so this cannot be a problem due to the drivers. I changed the size of the canvas, changed the zoom, the problem does not disappear.
Hello @Barrel Welcome to ZBrush Central
That is a known issue and @marcus_civis is looking into it. He suggests you use the AlphaBrush for now instead of the SimpleBrush which will give you smooth results.
I chose the brush you recommended. Much of the noise and pixelation seems to depend on the alpha itself.