Game Art Game Texturing and Materials

Question 1

What does PBR stand for in game art texturing?

Accepted Answer

Physically Based Rendering

Answer

PBR (Physically Based Rendering) is a texturing workflow that simulates how light interacts with surfaces based on real-world physical properties.

Question 2

In a PBR metallic-roughness workflow, what does a roughness value of 0 represent?

Accepted Answer

A perfectly smooth, mirror-like surface

Answer

A roughness value of 0 means the surface is perfectly smooth, reflecting light in a single sharp direction like a mirror.

Question 3

What is a 'texture atlas' in game development?

Accepted Answer

A single texture image that contains multiple individual textures packed together

Answer

A texture atlas packs multiple textures into one image to reduce draw calls and improve GPU performance.

Question 4

What information does the 'metallic map' store in a PBR workflow?

Accepted Answer

Whether a surface area is metallic (white) or non-metallic (black)

Answer

The metallic map is a grayscale map where white values indicate metallic surfaces and black indicates dielectric (non-metallic) surfaces.

Question 5

What is UV unwrapping in game art?

Accepted Answer

Flattening a 3D mesh's surface into a 2D layout so textures can be applied correctly

Answer

UV unwrapping projects a 3D mesh's surface into 2D space so texture maps can be painted and applied without distortion.

Game Art Practice Test