3DMonster is easy-to-use tool designed for creating depth masks for single-image stereograms, for use with 3DMiracle and other SIRDS/SIS programs. Its main features allow the user to import of 3D objects from 3DS format; move and rotate 3D odjects to obtain the proper view in output depth mask; create high-resolution bitmap depth masks; create animated masks for animated stereograms; export animated masks in AVI files compressed with any available codec or bitmap sequences; and more. No picture size limitations in registered version. Installation package includes a set of sample 3DS models. DirectX5 based.