Spog , In mdc.h you defined MDC_XYZ_SCALE as 0.15625 which is equal to (1/6.4), instead it should have been defined as 0.015625f or (1/64). Thats why the MDC models are huge when they get loaded (10 times bigger). I compiled a new md3model.dll and tested it and models look the correct size now, only the bbox looks strange from the XY view (but looks fine in glwindow).