Making a simple comic look (outlines around objects) is pretty easy. If you know how! Some years ago at the Games Academy, a team was building a comic adventure (Tummy Trundle) and investigated how to do a comic look in real time. Falk was presenting the solution: grab the 3D model, copy it, invert its normals, add a black material to the copied object and then push the faces outwards along their normals. The result looks like that:
At the end there simply lays one bigger black turtle over the original one. But since the normals of the black turtle are inverted you only see their overlapping parts.
You might think that up-scaling one sprite would be enough. At the first look this seems suitable but you’ll notice several problem areas:
Of course drawing 8 sprites costs more performance but that’s totally fine if you only have small amount of areas where this is necessary. Also you get some great advantages out of this technique!
While a “perfect” outline might look a bit boring (demonstrated via Photoshop-Outline) the little trick creates a really nice silhouette for the hair:
Also it works perfect with soft-alpha (see the smooth transitions at his wrists):
And my favorite (and of course the most important feature): Simple dots morph to small flowers!
I hope you guys like this small trick and thanks to Nicolae for sharing it with us! :,)