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Is it possible to have Ue4 render the graphics with a black line around everything similar to a cell shaded style, or would that require models specifically prepared for that purpose?

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    \$\begingroup\$ Can you share any research you have done on this subject? \$\endgroup\$ – Bob_Gneu Dec 28 '16 at 16:33
  • \$\begingroup\$ Did you read the official docs about post processing materials? Seems to be exactly what you are looking for? \$\endgroup\$ – UnholySheep Dec 28 '16 at 18:56
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There's a great post here about achieving a similar effect: http://www.michalorzelek.com/blog/tutorial-creating-outline-effect-around-objects/

The general steps involved are to create a depth map and then create a material that utilizes that depth information to perform edge-detection on your geometry. This is not an extremely simple thing to do, but it is possible.

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