How Do I Make a Roughness Map in Photoshop?

Making a roughness map in Photoshop is easy! First, open up your image in Photoshop. Next, go to the "Channels" tab and create a new channel. call it "Roughness."With your new channel selected, go to the "Filters" tab and select the "Add Noise" filter. Add noise until your image looks grainy. Finally, go to the "Layers" tab and change the "Blending Mode" of your Roughness layer to "Overlay." Your roughness map is now complete!Now that you know how to make a roughness map in Photoshop, you can use this technique to add realistic texture to your digital paintings and illustrations. Give it a try today!

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