2D Game Development 2D Rendering and Graphics

Question 1

What is a 'draw call' in 2D game rendering?

Accepted Answer

A command sent to the GPU to render a batch of geometry

Answer

A function that draws a sprite in code

Answer

A scheduled rendering task

Answer

A call to load a texture from disk

Question 2

What is 'sprite batching' in 2D rendering?

Accepted Answer

Combining multiple sprite draw calls that share the same texture into a single GPU call

Answer

Grouping sprites in the scene hierarchy

Answer

Preloading all sprites at game start

Answer

Sorting sprites by depth before rendering

Question 3

What is a 'shader' in 2D game graphics?

Accepted Answer

A program running on the GPU that controls how pixels and vertices are rendered

Answer

A tool for painting sprite shadows

Answer

A lighting calculation performed on the CPU

Answer

A post-processing filter applied after export

Question 4

What is the 'painter's algorithm' in 2D rendering?

Accepted Answer

Rendering objects from back to front so nearer objects overdraw farther ones

Answer

Painting sprites pixel by pixel

Answer

An algorithm for generating tilemap art

Answer

A tool for sorting sprite animation frames

Question 5

What is texture 'filtering' (bilinear vs. nearest-neighbor) in 2D games?

Accepted Answer

Nearest-neighbor keeps pixels sharp; bilinear blends between pixels for smoother scaling

Answer

Nearest-neighbor removes texture edges; bilinear adds outlines

Answer

Bilinear is faster than nearest-neighbor on all hardware

Answer

Nearest-neighbor is only for 3D textures

Question 6

What is 'z-ordering' (sort order) in 2D rendering?

Accepted Answer

Controlling the render order of sprites to determine which appears in front of others

Answer

Sorting sprites alphabetically

Answer

Setting the z-axis position in 3D space

Answer

Organizing layers in the project hierarchy