Unreal Engine Technology & Digital Applications 2 — Questions and Answers
Question 1: Which Unreal Engine system allows you to write gameplay logic using visual node-based scripting without any C++ code?
- Blueprint Visual Scripting (Correct answer)
- Niagara VFX
- MetaSounds
- Control Rig
Correct answer: Blueprint Visual Scripting
Blueprint Visual Scripting is UE's node-based system that lets developers create gameplay logic visually without writing C++ code.
Question 2: What does the acronym 'LOD' stand for in Unreal Engine's rendering pipeline?
- Level of Detail (Correct answer)
- Light on Demand
- Layer of Depth
- Load on Draw
Correct answer: Level of Detail
LOD (Level of Detail) refers to swapping meshes with lower-polygon versions as they move farther from the camera to improve performance.
Question 3: In Unreal Engine, which rendering technique uses pre-computed lighting stored in textures to improve runtime performance?
- Ray Tracing
- Lightmass Lightmaps (Correct answer)
- Lumen
- Nanite
Correct answer: Lightmass Lightmaps
Lightmass bakes static lighting information into lightmap textures at build time, enabling fast runtime rendering without recalculating light each frame.
Question 4: Which Unreal Engine 5 feature enables fully dynamic global illumination and reflections without pre-baked lighting?
- Nanite
- Lumen (Correct answer)
- World Partition
- Chaos Physics
Correct answer: Lumen
Lumen is UE5's fully dynamic global illumination system that calculates real-time indirect lighting and reflections without requiring lightmap baking.
Question 5: What type of asset in Unreal Engine defines the visual appearance of a surface, including its color, roughness, and metallic properties?
- Texture
- Material (Correct answer)
- Mesh
- Particle System
Correct answer: Material
Materials in Unreal Engine define how a surface looks by combining textures and mathematical expressions to control properties like color, roughness, and specularity.
Question 6: Which technology does Unreal Engine use to stream very large open worlds by only loading sections near the player?
- World Partition (Correct answer)
- Nanite
- Lumen
- PCG Framework
Correct answer: World Partition
World Partition automatically divides large worlds into a grid and streams in only the cells near the player, enabling massive open-world environments.
Question 7: In Unreal Engine's Chaos physics system, what term describes a mesh that has been set up to break apart into fragments upon impact?
- Ragdoll
- Destructible Mesh (Correct answer)
- Soft Body
- Cloth Simulation
Correct answer: Destructible Mesh
Destructible Meshes in Chaos Physics are pre-fractured static meshes that can shatter into pieces when they receive sufficient force or damage.
Unreal Engine Technology & Digital Applications 2
Which Unreal Engine system allows you to write gameplay logic using visual node-based scripting without any C++ code?