It might be done. Is 222 instructions in PP too much? #ue4 #shader #VFX #gamedevpic.twitter.com/yATzw8wnSy
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The key is that every permutation of switches toggled creates a new shader to compile - which not only makes iteration cycles longer at design time, but also means that material instances with different switches cannot be batched together. The trade-off is often marginal though.
The even more annoying part is that just toggling the parameter override for the switch itself is the part which triggers the compilation, even if the switch itself is the same as its parent :/
