Blender Blender Rendering & Lighting

Question 1

What is the main difference between Cycles and Eevee in Blender?

Accepted Answer

Cycles is a path tracer (realistic, slow); Eevee is a real-time rasterizer (faster, less accurate)

Answer

Cycles is faster; Eevee is more physically accurate

Answer

Cycles uses the GPU only; Eevee uses the CPU only

Answer

Cycles is for animations; Eevee is for still images

Question 2

What does 'Samples' setting control in Cycles rendering?

Accepted Answer

The number of light paths traced per pixel, affecting noise and quality

Answer

Image output resolution

Answer

Sampling rate for audio in the VSE

Answer

Number of render passes to combine

Question 3

Which light type in Blender simulates an infinitely distant light source like the sun?

Accepted Answer

Sun Light

Answer

Point Light

Answer

Area Light

Answer

Spot Light

Question 4

What is an 'HDRI' (High Dynamic Range Image) used for in Blender rendering?

Accepted Answer

Providing realistic 360° environment lighting and reflections for a scene

Answer

Applying high-resolution textures to objects

Answer

High-definition rendering output format

Answer

A shader node for boosting material brightness

Question 5

In Blender, what does 'Denoising' do during or after rendering?

Accepted Answer

Reduces render noise using AI or filter algorithms, allowing fewer samples for cleaner results

Answer

Removes sound from the video sequence

Answer

Defragments render cache data

Answer

Normalizes light intensity across the scene

Question 6

What is the purpose of 'Light Probes' in Blender's Eevee render engine?

Accepted Answer

Capturing scene lighting information for indirect lighting, reflections, and irradiance in Eevee

Answer

Testing light brightness before final render

Answer

Probing for light leaks in geometry

Answer

Placing physical light sensors in the scene