outline shader like a 'technical drawing'

[khamael]

Hi guys,

I want to render some objects like a ‘technical drawing’. So like in the attached figure, where there are the outlines, but the object is transparent, but the back outlines have a different color, or transparency - to have clear what is behind and what is in front. I have the outlines working fine (like toon shading, where the inside shading is just fully transparent. But how to I have the back outlines different?

Thanks!!

[aubergine]

you can do 2 passes, one for the backside and one for the frontside.
Check Cull Back, Front commands in documents.

Although If your objects are not too complicated, i would suggest to do it with creating a skeleton mesh programmatically instead to be precise.