Image output is mixed up

[dsp2003]

Apparently, the -X and +X are swapped in the program's output. Not a big deal if you're assembling a cubemap from separate images afterwards, so the correct command line would be

EnvMapTool -i sphere.png -O xm_.png -O xp_.png -O yp_.png -O ym_.png -O zp_.png -O zm_.png -W 256 -H 256 -f PNG sphere2cube

instead of default example's

EnvMapTool -i sphere.png -O xp_.png -O xm_.png -O yp_.png -O ym_.png -O zp_.png -O zm_.png -W 256 -H 256 -f PNG sphere2cube