Im fairly new to hammer and I do not understand how to get grass to show with the grass textures. It is always a muddy look. I am using the Boojum Snarks pack, too. I would appreciate some help on this.
Does the texture you're using have the word "blend" anywhere in the name? These blend textures are used for displacements, used by combining a muddy texture with a grass texture and overlaying them as textures with alpha (i.e. transparency) to give that "blend" look.
Use your texture on a Displacement, then use the 'paint alpha' and 'invert alpha' functions to switch between the ground texture and the grass texture.
Here's a tutorial on making and using displacements:
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