As far as I know the 'Picture' command when used in 3D does not have a boundary (unless the image you are using has one).
It will have a background though so it will always be rectangular.
But if your image has and Alpha channel, you can hide the background.
You can control the visibility of the Alpha channel with the 'mask' option in the PICTURE command.
Barry.
One of the forum moderators. Versions 6.5 to 27 i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10 Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11
I see what you mean.
I don't have the man image but I grabbed one that does have an Alpha channel.
The background is transparent but the image border is still there.
I am not sure how to turn that off.
The best I could do was to set a white pen colour just before the PICTURE command.
Barry.
One of the forum moderators. Versions 6.5 to 27 i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10 Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11