Blender Blender Materials & Shading 2

Question 1

What does the 'Metallic' input in the Principled BSDF control?

Accepted Answer

Whether the surface behaves as a metal or a dielectric (non-metal)

Answer

Setting Metallic to 1 makes the surface behave like a conductor, using base color as the specular tint and removing diffuse.

Question 2

In Blender Shader Editor, what does the 'Mix Shader' node do?

Accepted Answer

Blends two shader inputs together using a factor

Answer

The Mix Shader node blends two shaders using a Fac (factor) value, allowing you to combine materials like mixing glass and diffuse.

Question 3

What type of textures are created using math nodes and no external image files in Blender?

Accepted Answer

Procedural textures

Answer

Procedural textures are generated entirely through shader math nodes (like Noise, Voronoi, Wave) without requiring image files.

Question 4

What does the 'Emission' shader node do in Blender?

Accepted Answer

Makes the surface emit light of a specified color and strength

Answer

The Emission shader makes a surface appear to glow and emit light, and in Cycles it can actually illuminate other objects.

Question 5

In Blender's Principled BSDF, what does 'Subsurface' scattering simulate?

Accepted Answer

Light penetrating slightly into translucent surfaces like skin or wax

Answer

Subsurface scattering simulates light that penetrates the surface, scatters inside, and exits at a different point — essential for skin, wax, and jade.

Blender Practice Test

Blender Practice Test

Blender Blender Materials & Shading 2