Hello, for the past few days I’ve been struggling with terrain. Every time I go to paint a texture let’s say dirt for a path insteadof drawing it smooth, it has sharp edges and also draws it sharp
As you can see in the image the dirt path is kinda boxy instead of being smooth and rounded at the edges. Also that picture is not mine so don’t look at the settings. My terrain settings in my project are the same as an another project I have where this problem doesn’t occur so I don’t think that the problem is in my settings.
Try bigger Control Texture Resolution
You can’t do much about that with the default tools provided by unity. Your terrain uses vertex painting which will always look the way It looks on your picture. To make roads in an open world is to use decals or custom meshes. Unity engine supports decals only in HDRP and even then It’s not the solution you are looking for. You would need to find on the internet some spline solution (there are free ones on github) and with a bit of programming adapt It to your needs.
Yup looks normal. Use higher Control Texture resolution in your terrain settings, to decrease the blend area.
It is not really using vertex painting, it uses a blending mask for each terrain layer, and depending on its resolution you get more or less precision when painting your various layers. In general avoid using too many layers and try to keep your control texture at 2K or lower. 4K offers nice precise blending and texture painting but uses too much memory than its worth.
Bottom line: The problem is indeed in your settings 
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