Simply smoothing the forehead of the realistic male base mesh deflates the head. It makes it really difficult to modify the base sculpt. How does this work and how am I supposed to modify the base meshes?
After smooth brush on the lowest multires level.
it is very slow if I sculpt onto the default level 3 fro sculpting.
With low density topology the smooth brush does do that, I usually use the elastic deform brush to pull the base mesh around and leave smoothing for when there is enough geometry.
I do not use multires but you could smooth on a higher level.
Also you can lower the strength of the smooth brush and use a smaller brush size.
Same, this is the behavior of the brush, you loose volume as you add too much brush strokes with low strength in that area or a few brush strokes with a high strength… similarly happens for clay strips, clay and other brush that aren’t draw or draw sharp and crease. But also in the case of other brushes it happens because the auto smooth setting which makes it loose volume for example in the the clay brush with low strength is more noticeable (by default has autosmooth on) and clay strip have in the brush settings (disabled by default but occurs the same if I recall)
