Face Generation Has Feint Lines

[trumpton]

face002 (back) has a vertical line down middle
face004 (up) has a vertical line from middle to top
face005 (down) has a vertical line from middle to bottom

All of these coincide with the back, which is the left and right hand edges of the source equirectangular image.

[trumpton]

This could be an artefact of some scaling done on the source equirectangular image before import, and in fact nothing may be wrong with the program.

i.e. in this case, the equirectangular image was scaled to be a multiple of 512 pixels for testing purposes, and the image scaling has left a noticable feint line around all four edges. The top and bottom edges render to a single point, and the left and right edges render to the middle of the rear.