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Select all the dilation layers and merge them with Command-EĬreate a solid color layer at the bottom of your image stack. This will expand the background into a new layer. Run the “Dilate Many” action a couple of times.

Select Layer->Matting->Defringe and apply with the default properties This will be source for the dilation of the background. Let’s assume you have your alpha texture on a transparent layer inside photoshop. Setting Upīefore doing this, install these alpha utility photoshop actions: Īfter installing, your Action Palette should contain a folder called AlphaUtility: Getting Alpha Right Hence, you need to expand the color layers… The alpha channel in Unity will be read from the first alpha channel in the Photoshop file.