http://www.valvesoftware.com/publications/2008/GDC2008_StylizationWithAPurpose_TF2.pdf
ʂ̃TCgɃWv悤ƂĂ܂BXΏL̃NNbNĂ
UPLIFTōLȂő̌܂傤IKȉ{Ct܂I