When I am trying to paint with a dynamic brush I created in designer, I get this type of height blending for each stroke. How do I remove this type of borders?
In the first picture I made no Alpha mask. In the second one I made an alpha mask. But it still is producing a border where the height is suddenly going all the way down. I want to build up the height map from the existing height level. How do I fix it?
Assuming you only want the heightmap from your brush to raise the height from the surface, in Designer try blending your heightmap with a 50% grey using Add blend mode (you may need to scale it). When painting in Substance Painter that 50% grey becomes the mid (i.e. 0 point) Anything darker will cut into the surface and anything higher will raise up.