I seem to have got the plugin working following your advice but found it here:
Tools - GEGL Operation - Bump Bevel (lb:custom-bevel).
I created some interesting effects but was unable to reproduce what I did in 2013:
Attachment:
CopTemp3z.png [ 230.95 KiB | Viewed 1549 times ]
From this flat image:
Attachment:
CopTemp3x.png [ 230.95 KiB | Viewed 1549 times ]
I'm beginning to think that I may have used some other plugin effect. All I have is references to Bevel Width, Azimuth, Elevation and Depth settings. The other thing I remember, was that the rendering of images was very slow. Any ideas?
Thank you,
Dave S.