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Tom Looman shared a new guide for Unreal Engine 4 users. The artist continues to experiment with outlines inside the engine, trying to recreate effects from Left 4 Dead or CS:GO.
Ever since I first wrote about creating outlines in Unreal Engine 4 I’ve wondered if it was possible to render them as soft outlines instead of harsh binary lines much like you would see in games like Left 4 Dead or CS:GO as seen below.
Recently I did a quick experiment using a modified version of SpiralBlur, a node that’s available in Unreal Engine 4, and is using some custom shader code. Here is the result I got:
Looks pretty good! The effect is a little more expensive than the binary outlines since we do several steps in the SpiralBlur node to get to look decently smooth. Later in this post I will talk about performance. The final image shows an extreme setup with high Distance param so show the fade-off more clearly.
Find the full guide here to learn how to mimic these effects in UE4.