This is an intermediate picture file created by rpict and filtered and scaled by pfilt to generate the final image. It is deleted by the batch job after the filtering process and is only found if the batch process is interrupted. It has the format and structure of a picture file.
The file is created at four times (2 by 2) the picture size as defined in the Eye view position tab. The eventual size depends on the aspect ratio derived from the horizontal and vertical viewing angles (or width and height for a plan view).
