Green Edges. Info

[NP5]

Has, rarely, come up that people have odd green colouring to edges.
I have found it is Marking for freestyle cell shading edges. If you should want that cell shading render effect, it enables you to mark particular edges to be rendered as black lines.

Explanation here where the effect is wanted, (towards the end) lol. But it answers the problem some get of unknown green edges. They have somehow marked edges freestyle.

Now my interest is that this green edge marking can be used without consequence for normal rendering or modelling, to highlight some important edge or aspect of your model.

[NP5]

Ok some images to show it all.

Edges Freestyle marked. Freestyle ticked in the Render Properties tab.

If you actually want those edges to render as black lines you also need to tick ‘Edge Mark’ in the View layer Properties tab.

Results. First normal render without Freestyle ticked. Showing you can use these green marked edges for other meanings without consequence.

Render without the View Layer Properties Edge Mark ticked

Render with VLP Edge Mark ticked.