Blender is a free 3D animation studio. It includes tools for modeling, sculpting, texturing (painting, node-based shader materials, or UV mapped), UV mapping, rigging and constraints, weight painting, particle systems, simulation (fluids, physics, and soft body dynamics and an external crowd simulator), rendering, node-based compositing, and non linear video editing, as well as an integrated game engine for real-time interactive 3D, and game creation and playback with cross-platform compatibility.
The dvdauthor module allows you to create a structure of menus, titles, and titlesets (including the VMGM menu) in an object-oriented manner. It can cross-reference commands (typically in <pre> and <post> tags in the dvdauthor .xml) with the actual location of a particular video. For example: "jump f:%s" % thismenu.id would be turned into "jump titleset 2 menu 3" if it was added to the second titleset as the third menu. This allows you to build complex interactive DVDs.