How Designer Pro uses multi-threading

[handrawn]

thanks for this phil

I would imagine it helps too with multi-pass photographic bitmap tracing, and maybe manipualtiom of complex objects when extruding [two areas I was going to suggest in another thread which is now closed]

@itsfransie - no one can hold everything in their head all the time; knowing where to look to find out is as good as knowing, for things you don't deal with everyday - engineers are cautious and tend not to rely on memory, least those I work with certainly don't