During my in-depth tests I found some general problem with set/getColor
functions if negative texture coordinates are passed.
Right now I'm fixing this on my end, by wrapping them manually, since I
didn't find a clever and nice looking solution other than:
float int_part;
if (tc[0] < 0) { tc[0] = 1.0 - modf(tc[0], &int_part); }
if (tc[1] < 0) { tc[1] = 1.0 - modf(tc[1], &int_part); }
if (tc[2] < 0) { tc[2] = 1.0 - modf(tc[2], &int_part); }
Added setColor function to modify an image based on texture
coordinates, parallel to the getColor functionality.
Changes are made against revision 13913(header) and 13894 (cpp).
Cheers
Sebastian
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