This command is new in Outerworlds 3.2. It instructs the rendering engine to use a more accurate, but significantly slower, algorithm when rendering transparent portions of the current object (i.e. materials with an opacity of less than 1.0.) Because of the performance impact, opacityfix should only be used as a last resort to get a transparent object to render correctly.
Note that Opacityfix is an extended RWX command and should be prefaced with "#!" when used in RWX files that are intended to work with software other than Outerworlds 3.0 and later.
<mode> either "on" or "off"