January 04, 2014, 01:04:47 am
Do you have some sample renders and screencaptures so we can compare the Lumion renders to a SkUp display with edges?
Manga of course affects the whole image so the edges are just getting emphasised for the black, and if you are wanting only edging wider/stronger then this does not really fit the requirement.
In the new version 4 there is a new Cartoon Effect
that gives some control over the Outline Width, but again this is a full image effect. The Free version of 4 has not yet been released.
Using some of the other effects such as Color Correction
will not really help either. Something like a 2D Flat image (without lighting) is what you might be seeking, but Lumion does not have that.
I would say, go with what there is, with the export with edges.