It is a usual recommendation to not use Unity to make to bake/ turn a gray-scale into a normal map. However, if I want to completely avoid Unity messing with my normal map, do I have to do manually things like saving the red channel into the alpha and painting the blue channel white, in order to use compression? If so, please name all the things I will have to do. If not, what is the best way to import a normal map( what format it needs to be in, etc)?
Thanks in advance...
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