2 petits tutoriels trouvé récemment, je ne l'ai est pas encore fait, mais ils m'ont l'air assez complet, je vous tiens au courant 
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La modélisation : http://cg.tutsplus.com/tutorials/blender/creating-a-low-poly-ninja-game-character-using-blender-modeling/
Le texturing : http://cg.tutsplus.com/tutorials/blender/creating-a-low-poly-ninja-game-character-using-blender-uvmapping-and-texturing/
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