Brush stroke suggestion

[ugocapeto]

I think the brush stroke should have some variable transparency, not just be 100% opaque. Something similar to what is being done here:
http://3dstereophoto.blogspot.com/2018/07/non-photorealistic-rendering-software.html

This is a stroke based renderer that simulates oil painting/digital painting using traditional methods, which means it probably creates too many strokes.

By having the brushstroke as a grayscale image where white means fully opaque and black fully transparent, some of the color that's on the canvas would still be visible after the brush stroke is applied, which would give in my opinion a more natural/realistic look.