My wife and I are making a game and we need some 3d models made for some designs that we have.
The designs need to be modeled with game performance in mind. So keep vertex / polygon count low and use materials / textures rather than geometry to render the details of the model. Also set the key frame to linear.
No designing is needed just modeling of the images that we will provide. If the models go well we might also pay for some small animations but that is not required. The Rigify plugin is not allowed for animations because it bloats the model.
