Lattices seem to have deform lag, when they're animated with Ipos. Found out this behaviour is already from before 2.25... solved with removing a where_is_object() from deform code, but dont fully grasp why. Tested with good demo file, with motion blur too. 2) No functional changes, just made 2 files compile without warnings; - added extra ifdefs __NLA_BLENDCON for unused calls - removed zealot 'const' from function protos and variables, these cannot work there, and hence gave warnings - added void pointer casts for array conversions in matrix code