The some brush material from Manga Materials can makes many uses on one material.
This page tell you the trick how to draw a tree trunk
by using “Sketching style hatching brush”.
Learn how to correct line width of brush material here
Learn basics of brush materials here
How to draw a tree trunk with hatching brush
First draw out the base outlines of the tree trunk.
Since the tree trunk has a cylindrical shape, I will stroke the brush by imagining a gradation.
Use the curve line brush instead of a straight line for trunk.
Made a selection area with the “auto selection tool” and made a gradation with a stroke.
However, in a horizontally lined line, the stereoscopic feeling of the tree trunk does not come out.
To express the roundness of the cylinder, it is effective to change the direction of the brush every vertical line.
The texture of the column shape increased more than before.
There is also a trunk whose surface is as smooth as shown in the above figure,
Here, to make trunk texture more realistic
draw the image with unevenness as shown in the figure below.
The texture of the trunk has increased all the way past.
If you add more white and solid, and increase the gradation density, it becomes a more real trunk.
Sketching style hatching brush is a highly versatile material because it can draw hatching in short time with strokes only.
Please refer to it.