Surface edges visible when they shouldn't be

Hi Wim,
Thanks for your explanations. Hope it can be improved soon.

It might be nice just to be able to disable that if you need to. To have an option not to redraw the wires in front of the surfaces. (I don’t know if this is possible. Like this maybe more ZBiasFactor will be not needed.)

Thanks, that helps a bit. But how is it possible to keep the solid colours of the surfaces at the same time? I have a technical display mode that shows the colour of the surfaces, but once I print it in vector, the colours disappear. And if I print in raster, this hidden line reappears. I can’t find a setting that allows me to keep the colours while making these famous lines disappear.

Here’s an example of the type of graphic output needed. (second one: Technicolor.ini)