Unity Unity Lighting and Rendering 2

Question 1

Which Unity feature allows indirect lighting (bounced light) to update in real time at the cost of additional GPU work?

Accepted Answer

Realtime Global Illumination (Enlighten)

Answer

Realtime Global Illumination powered by Enlighten updates indirect lighting dynamically at runtime, though it requires significant GPU resources.

Question 2

What is the role of Light Probes in Unity?

Accepted Answer

To store lighting information at points in space for dynamic objects

Answer

Light Probes sample and store spherical harmonic lighting at specific world positions so that dynamic (non-lightmapped) objects receive realistic indirect lighting.

Question 3

In Unity's HDRP, which volume component controls the physical camera settings such as aperture, shutter speed, and ISO?

Accepted Answer

Physical Camera

Answer

HDRP's Physical Camera volume override exposes aperture, shutter speed, and ISO settings that affect exposure and depth of field physically.

Question 4

Which rendering path in Unity processes lights one at a time per object and is best suited for lower-end hardware?

Accepted Answer

Forward Rendering

Answer

Forward Rendering shades each object once per affecting light, making it simpler and better suited for platforms with limited GPU capabilities.

Question 5

What Unity feature automatically adjusts the camera's exposure level based on the average luminance of the rendered scene?

Accepted Answer

Auto Exposure (Eye Adaptation)

Answer

Auto Exposure (Eye Adaptation) simulates how the human eye adjusts to varying brightness by dynamically changing exposure based on scene luminance.

Unity Practice Test

Unity Practice Test

Unity Unity Lighting and Rendering 2