recently i learned how to make geometry shaders with stream output and then reuse resulting geometry for several render passes. Also, in GS we can do very nice normal calculation per face. (all this i take from vuxes examples in dx11 girlpower)
but there is one problem, i cant get TEXCOORD to work,
if i try to pass it together with POSITION and NORMAL (as its shown on MSDN documantation), geometry all breaks down.
all i need just to pass TEXCOORD from original geometry to modified one.