Does The Amount Of Parts In A Place Affect Gameplay? (Could they contribute to lag?)

Hello, I’m just wondering that if a place/game has like thousands of parts, will it lag the gameplay of players in it? I just thought of this because I saw a plugin review on YouTube that creates low poly terrain and saw that it create tons of parts when activated.
So yeah, I’m just curious though.

Yes, as the engine has to keep track of every part resulting in lag among other problems.

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This thread should also be moved to help section as the development section is more for discussing development, not asking for questions or help.

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Parts with physics can cause lag, but of course parts normally cause lag because they include data such as properties, that’s why people always try to use less parts or vertices, best way to stop this is making a mesh, unioning causes more lag.

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Yes it makes lots of lag
Making a model in blender is way less laggy

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Oh, I though unioning parts make make them a one part and act as a single part.

Yeah, that makes it more laggy, this adds more data to what it already was

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Does grouping parts also do the same as unioning?

No… Not at all… View a tutorial on YouTube about Studio basics.

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Grouping parts just basically means gather a few parts and make them into a group that can be moved when you interact the bounding box of the model. Nothing will change for the parts inside the model.

On the other hand, union means mixing two parts into a single part. This is very FPS consuming because the game would need to calculate the physics, shadows and other stuffs for the union. And unions can come into many different kinds, or infinitely.

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