Surface effects: PBR (Physically Based Rendering)

Physically Based Rendering options
  Languages Loads a binary file containing a description of the texture in the RGBA color scheme. Use the dropdown list to load a pre-set file, or click the browse button to load your own file.
  Plain Use a solid color for background.
  OMR map Adds an image that is then tiled across the surface in a pattern. To load an image, click the browse button, and then navigate to where the image is located, and selected it.
  Width/Height Sets how wide and high the ORM map will be.
  Angle Sets an angle at which the loaded map will be positioned relative to the surface's x-axis.
  Keep proportions While you are editing Width or Height, the other dimension changes too, thus preserving the map's original proportions.
 
Icon Control Name What It Does
Fit Fits the appearance model into the preview area.
Zoom Starts zooming inside the preview area.
Pan Starts moving the appearance model across the preview area.
Turn Starts rotating the appearance model within the preview area.
Single Axis Rotation Starts rotating the appearance model along the axis defined by how you move the mouse.
View Options Opens a dialog box in which you can set the lighting of the preview area.