Recommended Presentation Opacity (0066,000C) is a fraction between 0.0 and 1.0 encoded as a float value representing the percentage of transmission through the surface.
The Recommended Presentation Type (0066,000D) attribute provides guidance as to the default presentation of the Surface. Defined terms are:
SURFACE Render the surface as a solid, applying the opacity as specified in the Recommended Presentation Opacity (0066,000C) attribute.
WIREFRAME Represent the surface as a series of lines connecting the vertices to form the defined primitive faces.
POINTS Represent the surface as a cloud of points.