All I did was just extract the models from Mass Effect 2's PC assets, bring them into 3ds Max, throw their textures on them, and then I moved them around to pose them.
(The models and all of their assets belong to BioWare.)
Mordin isn't a love interest because the heads at Bioware realized that if he were, his intelligence and badassery would cause the player to ignore all other LI's and explore the Professor's world of intellectual debauchery and hedonism