This tutorial describes a technique of creating grayscale masks (transmaps, which could also be used as bump maps etc) from diffuse maps. Software used is a free image editor called Paint.NET; however, the technique is easy to adapt for any other image editor that can handle selecting or deleting specific colours in an image.
Remember: unless you have explicit permission to redistribute derivative works, the masks you make are to remain for your own use, in your renders only (not in products/freebies).
Required files:
- free Paint.NET:
http://www.getpaint.net
- free Grim Colour Reaper plugin:
http://forums.getpaint.net/index.php?/topic/15595-grim-color-reaperplugin/
How to install Paint.NET plugins:
http://forums.getpaint.net/index.php?/topic/1708-how-to-installpluginsgeneral-plugin-troubleshooting-thread/
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