Instructions apply to Photoshop CC 2019 for Windows and Mac.
it’s possible for you to use layer styles such aspattern overlayto generate repeating textures.
SelectImage>Adjustments>Desaturate.
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In the bump map, lighter areas are interpreted as flatter while darker areas are interpreted as higher.
To do this, selectImage>Adjustments>Invert.
SelectImage>Adjustments>Brightness/Contrast.
Set theContrastto100toincrease the contrastbetween lighter and darker areas and then selectOK.
SelectFile>Save Asand save the map in a format that is compatible with your 3D modeling software.
Different3D graphics programshave different ways of integrating bump maps into a model or polygon surface.
What Are Bump Maps?
Bump maps are used in3D modelingto artificially create textured surfaces without having to model the individual details.
Lifewire / Ellen Lindner
