M | Model Element (T+ Model) | A Three Plus Model, Mesh, or Brep
Dm | Displacement Map (Bitmap) | The displacement map affects the position of the mesh's vertices. Unlike other maps which only affect the light and shade of the material the displaced vertices can cast shadows, block other objects, and otherwise act as real geometry. The displacement texture is an image where the value of each pixel (white being the highest) is mapped against, and repositions, the vertices of the mesh. (A System Drawing Bitmap or full file path to an image.)
S | Scale (Number) | How much the displacement map affects the mesh (where black is no displacement, and white is maximum displacement). Without a displacement map set, this value is not applied 0-1.
