DMM (Digital Molecular Matter) is a technology to simulate "material physics", or the dynamic behavior of objects made of realistic materials. DMM handles soft-body, plastically deforming (e.g., bending metal) and breakable objects all within the same system. These capabilities distinguish DMM from rigid-body systems, which are limited to idealized rigid materials and are unable to simulate the deformation and fracture of real-world objects with the kind of kinetic fidelity that makes things seem real.

DMM handles the simulation of diverse materials by using an advanced method from scientific computing called finite element modeling (FEM). Materials are represented in FEM by a set of "material parameters" that the simulation takes into account. A DMM content creator has complete control over these parameters to tune an object's material, being able to adjust, for example, how soft or rigid an object is and how easily it may fracture. Side effects such as having objects weaken and break after repeated bending occur naturally as an artifact of material settings. The DMM collision system is very robust and handles the collision of the complex shapes that arise from deformation and fracture.

The basic structure of a DMM object is a tetrahedral FEM mesh. The DMM authoring pipeline allows the creation and manipulation of DMM meshes with the ease necessary for production work. Tools are provided to automate creation of DMM meshes to match the shape of rendering geometry, and also to prepare rendering geometry for deformation and fracture.

There are 2 main products built around the DMM technology:
DMM Plug-in
DMM Engine