Quiz - Lighting

Quiz

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Foundational

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+60 XP

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10m

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Unity Technologies

This quiz will assess the knowledge and skills you gained over the course of this Unit 8 on Lighting.

Question 1

What is ambient light? Select all answers that apply.

Select all correct answers

Ambient light is light that doesn’t come from a specific source object in the scene.

Ambient light is a problem that occurs when you have too many light sources in your scene.

Ambient light can provide a unifying color to the environment in your scene.

Ambient light is rarely the primary source of light, but it can be very useful when you’re fine-tuning the lighting in your scene.

Question 2

Which of the following statements about real-time and baked lighting approaches are true? Select one answer.

Select only one

Baked lighting allows in-game characters to cast dynamic shadows as they move.

Unity calculates real-time lighting at runtime. Baked lighting is calculated in advance, and then the lighting data is applied at runtime.

Real-time lighting turns every object in a game into a light source.

Baked lighting is only suitable for 2D games, while real-time lighting is used exclusively for 3D games.

Question 3

What is lightmapping? Select one answer.

Select only one

Lightmapping is the process of precalculating lighting data in a scene and storing it in a texture called a lightmap so you can use it later.

Lightmapping is the process of saving the lighting calculations that happen at runtime as a texture called a lightmap so you can reuse this data later.

Lightmapping is the process of placing Light Probes throughout a scene to create a map of the space.

Lightmapping is the process of creating the light sources in a scene that are necessary for full visibility.

Question 4

In what circumstance would it be useful to use the Generate Lightmap UVs feature?

Select only one

When you want to apply lightmapping to your imported model and ensure proper lighting calculations.

When you want to add special effects to the model's materials.

When you want to control the model's shadow intensity.

When you want to adjust the model's ambient lighting.

Question 5

Which of the following is true about Unity's different shadow types?

Select only one

Realtime shadows are calculated and updated dynamically during gameplay.

Hard shadows provide more realistic and softer shadow transitions.

Soft shadows can only be achieved with Point or Spot Lights.

Baked shadows are suitable for dynamic objects that frequently change position.

Question 6

What can you expect to change in your scene if you increase a light's intensity?

Select only one

The light's color will become brighter.

The light's range will extend further.

The light's shadows will become softer.

The light's position will shift.

Question 7

Which of the following is true about Light types and their options? Select only one answer.

Select only one

Spot Lights have an Inner / Outer Spot Angle property, which defines the shape of the Spot Light.

Point Lights have a Range property, which controls how far light is emitted.

A Directional Light will have the exact same effect on your scene, even if you change its position.

All light types have a Culling Mask property, which defines the layers that will be affected by a given light.

All of the above are true.

Question 8

Look at the image below. Which of the following statements are true? Select all correct answers.

Select all correct answers

The Point Light is red.

The Spot Light is green

The Area Light is white

The Directional Light is yellow.

Question 9

Which of the following situations would justify the use of Light Probes in your Unity scene?

Select only one

When you have dynamic objects that need to receive accurate lighting information from baked lighting.

When you have a well-lit scene with no moving objects.

When you have a scene with only Directional Lights and no Point or Spot Lights.

When you have a low-polygon environment that doesn't require realistic lighting.

Question 10

You have added several sprites to your 2D Unity scene. However, they do not appear to react to any of the Light 2D components you've placed. What is the most common reason for this lack of interaction, which is a default behavior in 2D projects?

Select only one

The sprites are too far from the Light 2D components.

The sprites are using an unlit shader by default.

The Light 2D components need to have the Affect Sprites property enabled.

The sprites need a Collider 2D component to interact with light.

Question 11

Which of the following 3D lighting concepts are generally not applicable or commonly used in 2D Unity projects due to the simpler nature of 2D rendering and sprite-based interactions, as well as optimization considerations?

Select only one

Global lighting and localized lighting

Real-time lighting

Light probes and baked lighting

Light intensity and color

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