IsIndividual

Marks a ugen which is individual, that is two instances of that ugen are different even if all inputs are the same. This is the case for example for all ugens that depend on the random seed (as indicated by the sub-type HasRandSeed) or which mix onto buses or buffers (e.g. RecordBuf).

Note that for example BufWr could be considered not individual as two identically parametrized BufWr instances produce exactly the same behaviour as one of them. However, they are in certain spots of the UGen graph in which they could be behave differently, for example if the computation order is BufWr -> BufRd -> BufRd. We thus defensively mark every ugen as individual which writes to a Buffer or Bus.