#29
6th Feb 2014 at 7:32 AM
Last edited by sciguy77 : 6th Feb 2014 at
11:14 AM.
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Here's a simpler way to create the 4th color region:
1) Create a new, normal layer and fill it with black.
2) Edit the new black layer exactly as you want the alpha channel to look. Be sure you're using solid white on the black background.
3) When done, copy the layer and paste it into the alpha channel.
The new alpha channel is done. Make the colored mask the visible layer and flatten the image (ALWAYS flatten the image with PhotoShop!). When you've completed the rest of the mask save it using the DXT3 explicit alpha option. Saving as a DXT1 1 bit alpha kills all the data on the 1st 3 channels. See the pics below. Both masks have the pictured alpha channel. One is saved as DXT1 and the other as DXT3. If your 4th channel is showing up on a white background that you can't recolor, redo the mask and save it as a DXT3.