Watch Dogs style Interior Mapping material

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@Stefander;61969

Hey guys, happy Ascension day!

Today I devoted my day to bringing the Interior Mapping technique to Unreal Engine 4! For those that are not in the know, Interior Mapping is a technique to simulate virtual geometry with only a pixel shader. It’s been most recently used in Watch Dogs (very short video showcasing the technique here) to simulate interiors on skyscrapers and buildings to make them feel more unique. So far, I’ve succeeded in making a simple material function that takes a couple of parameters (the wall/ceiling/floor textures and the wall/texture tiling options) and outputs the correct sampled color. This looks a little something like this:

And, combined with a few very basic textures it looks like this:

I’m still changing around a lot of stuff but it’s coming along nicely Any comments/suggestions are very welcome!

I was literally about to start trying to work something like this out today, looks like you’ve already made great progress with it. Any ideas if/when we’ll be able to try it out?