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1. Re: Can someone explain to me why this shader effect doesnt work?

   

   Reply by almighty_gir · Aug 2014 · Home› Unreal Engine

   one other issue i can think of, is that worldspace vertex normals aren't simply a case of "blue channel = up". up is a combination of all three channels. so the first thing you'd need to do is find out what direction is "up" in UE4 (for example, is it Y up? i'll use that as the example i'm about to make). then you'd need…

2. Can someone explain to me why this shader effect doesnt work?

   

   Topic by JoakimMellergard · Aug 2014 · Home› Unreal Engine

   I am trying to get the rain texture to pan slower when the vertex normal direction is facing upwards. Below you can see the shader network and a screenshot of the result. It seems like the engine only chooses one normal direction and in those cases the result comes as expected. However when the normal direction is…