Alpha not importing with 32-bit TGA
I have my normal map with the roughness in the alpha slot. Everything looks fine in Photoshop. RGB, then Alpha 1 with the roughness placed there. When I save it out of Photoshop, I have Alpha Channel ticked and have it saved as a 32-bit TGA. If I re-open the file in Photoshop, the alpha data is still there.
When this is imported into UE4. The alpha no longer is connected and instead is pure white. I've tried this with multiple maps with the same result each time.
asked Aug 14 '14 at 05:46 PM in Using UE4
Double click on your normal map in the content browser to bring up the asset details. In the details menu, scroll down to 'compression' sub menu and replace the compression setting 'TC Normal' map with 'TC Default'. Then re-import the map. That should work. Best wishes, Matt
answered Aug 14 '14 at 05:56 PM
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