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  • Key concepts of Unreal Engine 4 and Unity

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    Key concepts of Unreal Engine 4 and Unity :

    Game logic

    Unreal Engine 4

    Game logic is written using C++ or Blueprint Editor. C++ class and blueprint manipulates the objects. Object has only one class and blueprint is connected to this class.

    Unity

    Game logic is written using Mono environment. Scripts manipulate the objects. An object has a lot of scripts or does not have any.

    Scene

    Unreal Engine 4

    Z axis up.

    X forwards, backwards
    Y left, right
    Z up, down

    Unity

    Y axis up.

    X left, right
    Y up, down
    Z forwards, backwards

    Scene Objects

    Unreal Engine 4

    Base scene object - Actor

    The base object that can be placed into the scene is know as actor. One Actor can has a lot of components of same type. Most of components support parent-child relation.

    Unity

    Base scene object - GameObject

    GameObject is container for all other Components. Components are then added to the GameObject. GameObject has not same type of components (except scripts). Components do not support parent-child relation.

    Base Datatypes

    Unreal Engine 4
    Unity
    int32, int24, int8 int
    FString string
    FTransform Transform
    FQuat Quaternion
    FRotator Rotation
    Actor GameObject
    TArray Array

    Hope it will help you.
    Thankyou !

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