Eu nunca usei isso e estou familiarizado com Poser no conceito, mas nunca usei isso. Eu encontrei as alternativas para Poser aqui: link
MakeHuman is a free, Open Source, interactive modeling tool for creating custom 3D human characters. These characters can be modeled in minutes and can then be used with many other modeling and rendering programs to incorporate realistic human figures into computer generated images and animations. Features that make this software unique include the tetra-parametric GUI© and the Natural Pose System©, for advanced muscular simulation.