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Is blueprint scripting slower than C++?

I've been developing a game in UE4 exclusively using blueprints, however I read on a forum someone say that blueprints are way slower than C++ and was avidly against using blueprints to create the game.

I truly enjoy the blueprint system that is why I use it. I am well versed in C++ and wouldn't mind converting my project over if its necessary, but I'm wondering if blueprint scripting is really slower than C++ and how much of a difference it is.

All the marketing of UE4 suggests that Epic intended to be able to have fully fledged games using blueprints, so if its slower or less efficient than C++ that wouldn't be good and I would need to convert my project now before I get further into it.

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asked Sep 05 '14 at 02:34 PM in Blueprint Scripting

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Hey lunix-

Programming in code will give have a very slight advantage in performance over blueprints. However the difference between the two would be nearly imperceptible during play. Any notable difference would likely be due to a bug that should be reported and we would aim to fix as quickly as possible. Blueprints are indeed intended for full game creation for those who do not have a programming background or are more visually minded. Hope this helps clear up some confusion for you. Best of luck in whichever format you choose to go with.


Doug Wilson

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answered Sep 05 '14 at 02:59 PM

avatar image lunix Sep 05 '14 at 03:02 PM

Thank you so much for your answer! This answers my question. I don't mind the overhead at compile time, my main concern is the players experience and I would consider myself a visual programmer as blueprints is basically how I design code in my head anyways.

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If you mean slower in terms of how fast they run, then blueprints I believe have a slight overhead as the visual scripting needs to be translated to the C++ side. However, I don't think it makes that much of a difference and I think it is what you are more comfortable with.

I myself use C++ throughout with very little to no blueprints, but like you said, the Engine is marketed to allow full games built in Blueprints.

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answered Sep 05 '14 at 02:55 PM

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