Top 20 Unreal Engine Interview Question and Answers for Game Developers

Have you been having sleepless nights just because of the Unreal Engine interview that is ahead of you? Being in this situation is unavoidable especially after you have experienced problems during your previous interviews or you totally do not know what is required of you when it comes to Unreal Engine interview. Time for being in such a situation is now a thing of the past because right in this article you are going to know the kind of questions that are usually asked in this kind of interview and this will open up your eyes and you will be more than prepared when that day comes.  In this article, I am going to share 20 common Unreal Engine Interview questions for game developers to revise key concepts and get ready for interviews. If you have used Unreal Engine before then you can easily answer these questions but if you struggle then I suggest you to join one of these best Unreal Engine online courses to learn and revise key concepts in quick time.

20 Unreal Engine Interview Questions with Answers

Here is a list of  top 20 Unreal Engine interview questions with answers are as follows.

1. Who is the original author of Unreal Engine programming?
Answer: Tim Sweeney is the original author of the unreal engine.

2. What is Unreal Engine?
Answer: It is the program for gaming with a highly defined unreal world for the players within the game.

3. What is UnrealScript?
Answer: UnrealScript is the original scripting language of the program that had been used for authorizing the Unreal Engine gameplay events and the game code. This was before the release of Unreal Engine 4.

4. What are the system requirements to install Unreal Engine?
Answer: The minimum system requirements to install the Unreal Engine are:

• A Desktop PC with Windows 7 64-bit or a Mac with Mac OS X 10.9.2 or later
• 8 GB or more RAM
• A quad-core Intel or AMD processor.
• DX11 compatible video card.

5. What is a Component in Unreal Engine?
Answer: A component in Unreal Engine is a feature that can be added to an Actor. Without an actor a component doesn't have its own existence. Using Components we can share common behaviors, such as the ability to display a visual representation, play sounds between different actors.

6. What is Twinmotion?
Answer: Twinmotion is a 3D immersion software that is used to produce high-quality images, panoramas, and 360degree VR videos. It is a real-time immersion software that combines an intuitive icon-driven interface with the Unreal Engine for architecture, construction, urban planning, and landscaping. This software transforms the CAD or BIM model into a real-time experience easier and faster. It is easy to learn and use the Twinmotion software.

7. When did Epic Games first release Unreal Engine?
Answer: Unreal Engine was first released in 1998.

8. How do you create a custom class in Unreal Engine?
Answer: You can create a custom class in Unreal Engine by deriving a new class from an existing class. To do this, you need to use the class keyword followed by the name of the new class and the name of the existing class that it will be derived from. For example, if you wanted to create a custom class called MyCustomClass that was derived from the existing class MyExistingClass, you would use the following code:

class MyCustomClass : public MyExistingClass
{
public:
MyCustomClass();
~MyCustomClass();
};

9. What are the different types of UObjects that can be used with Unreal Engine?
Answer: The different types of UObjects that can be used with Unreal Engine are:

• Actors
• Components
• Pawns
• PlayerControllers
• GameModes
• GameStates
• HUDs
• UUserWidget

10. What is Lightmass and why is it important for Unreal Engine?
Answer: Lightmass is the Unreal Engine’s global illumination solution. It is important because it is responsible for creating realistic lighting in Unreal Engine-based games. Without Lightmass, games would look significantly less realistic and would not be as visually appealing.

11. What are instances and instance groups?
Answer: Instances are individual objects that exist in a level, while instance groups are collections of objects that can be treated as a single unit. Instance groups are useful for managing large numbers of objects, or for creating prefabs that can be reused in other levels.

12. In which version was the killing floor built in the game?
Answer: The killing floor was developed in the second version of the Unreal Engine.

13. Who is the developer of Unreal Engine?
Answer: The Epic Games is the developer of the Unreal Engine which was found by Tim Sweeney, the author of Unreal Engine.

14. What are some of the drawbacks of 15.Unreal Engine version 4?
Answer:

• In the Unreal Engine 4, there is a problem with the process of executable size.
• The embedded system cannot be used, hence the exact size cannot be measured just like that.
• Gaming has started to feel deceptively difficult on use.
• Many people would start using blueprints of the game as the free version and think it is incredibly easy and there is no real need to code this programme.
• Epic patches/updates/changes the engine all consume a lot of processes with data and time.
• Documentations in the Unreal engine are generally sparse and out of date.
• There aren’t many tutorials, books, or demos for Unreal engine programming so its often the programmer needs to figure things out.

15. In which language is Unreal engine written?
Answer: Unreal engine is written C++.

16. What is a Material in Unreal Engine?
Answer: Material in Unreal Engine is an asset created in a content browser. It is used to control the visualization of the scene. You can add material into the surface simply doing drag and drop.

17. What are some of the new things in Unreal Engine4?
Answer:

• Pipeline Integration
• World Integration
• Animation - Character animation tools, animation blueprints, etc.
• Forward rendering
• Sophisticated lighting
• Advanced shading models
• Flexible material editor
• Virtual texturing
• Niagara particles and visual effects
• Robust multiplayer framework
• Advanced artificial intelligence

18. What is Actor Component in Unreal Engine?
Answer: Actor components in the Unreal Engine are used for defining abstract behaviors such as movement, inventory, or attribute management, and other non-physical concepts. They do not contain any physical location or rotation in the world as they do not have a transform.

19. What are some popular games built using Unreal Engine?
Answer: Some popular games that have been built using Unreal Engine include Gears of War, Mass Effect, and Borderlands.

20. How many versions of Unreal Engine have been released so far?
Answer: As of July 2020, there have been six major versions of Unreal Engine released: 1, 2, 3, 4, 5, and 6.

You are already smelling success because you are prepared. All you need to do is to ensure that you are more than confident when you face the interview panel. Give it your all this time round and you will have every reason to smile. You now have no room to fail again because what you have finally found what you have been looking for. Wish you the best of luck.

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Thanks for reading this article so far. All the best for your Unreal engine and Game development  interviews and if you have any questions which don't know answer or any doubt feel free to ask in comments. You can also drop a comment if you have any doubts about Ansible, and we will get back to you as soon as possible.