Why is the Clay Brush (set to add) actually Subtracting during stroke? (Sculpting) I am trying to do some sculpting but running into a problem with the default clay brush. I can't tell if this is a bug or operating as intended.
Basically, if I use a low strength value, such as 0.200, the brush actually starts subtracting from my mesh, not adding. I want a low strength value but additive sculpting.
Here's a gif that demonstrates what is happening
(Excuse the bad compression):

Notice how ADD is selected, but it's actually carving into the mesh.

I would really appreciate any kind of help! Thanks.
The behavior is caused by Autosmooth (Sidebar (N) &gt; Tool &gt; Brush Settings). This setting controls the amount of smoothing that is applied to each brush stroke. In your project the positive displacement of the clay brush is cancelled out by the stronger Autosmooth. The strength of Autosmooth depends both on the factor in the tool settings and the resolution of the mesh. An object will be affected less in its shape the higher the mesh resolution is.
Hence, there are three options to reduce this unintended displacement:

Reduce the strength of Autosmooth.
Increase the strength of the clay brush.
Use a higher number of subdivisions.

The first and second option are the most straight forward solution to the problem. The third option is only listed for completeness, it is likely not desirable to increase the number of subdivisions just to reduce the impact of Autosmooth.