Marketplace: https://www.artstation.com/a/8214233
Pack contains 20 alphas maps (PSD, 2K resolution) to add concrete detail to your mesh in Zbrush, Substance Painter and other program.
Alphas resolution: 2048 * 2048.
The images are made seamless, ideal for superimposing on the UV of the model.
More products: https://www.artstation.com/vkgamedev/store
How to use alpha in Substance Painter: https://www.artstation.com/artwork/3dae12