Actually, this is not in armory, rather written standalone rasterizer in pure iron 
, but since both armory and my standalone rasterizer is on top of iron, you can use above shader with armory too, if you try this armory_example with my shader then you will get result(maybe, i haven’t tried it yet), but… since lubos’s shaders(PBR shader in armory) are way better than mine, I couldn’t find the reason to do it, but you can still try to do it in armory, maybe i will try connecting it with armory today.
If i get Env map/IBL working in my standalone rasterizer than i will write some good’ol written tutorial on how to do in pure iron.
@zicklag Thanks! 
Happy that people liked it 