Changed the exponent so that the texture looks better.  Only load each PNG file once.
Changed the exponent so that the texture looks better.  Only load each PNG file once.

git-svn-id: f6f47f0a6375c1440c859a5b92b3b3fbb75bb58e@1897 afdca40c-03d6-0310-8ede-e9f093b21075

libsh-archive/sh,libsh-archive/sh,libsh-archive/sh,libsh-archive/sh,libsh-archive/sh,libsh-archive/sh