Case Studies & Practical Application Flashcards

A game artist notices that a brick wall texture looks blurry at close range but sharp from a distance. What is the most likely cause?

Answer: The texture resolution is too low for close-up viewing

Low texture resolution causes blurring at close range because there aren't enough texels per screen pixel.

A film VFX artist is texturing a destroyed concrete pillar. Which workflow best captures realistic surface variation?

Answer: Combine photogrammetry-derived diffuse maps with hand-painted edge damage

Combining photogrammetry diffuse maps with hand-painted edge damage provides realistic base variation and believable wear patterns.

During a product visualization project, a rendered leather handbag looks plastic despite having a roughness map. What should the artist investigate first?

Answer: Check whether the roughness map is connected to the correct channel in the PBR shader

If the roughness map is connected to the wrong channel, the renderer ignores it and falls back to a default smooth surface.

A mobile game team needs to texture a 500-polygon character model while keeping draw calls low. What approach is most appropriate?

Answer: Pack all texture regions onto a single atlas texture

A single texture atlas allows all material zones to share one draw call, minimizing GPU overhead on mobile hardware.

A studio is converting an existing PBR metallic-roughness model for use in an older engine that requires specular-gloss textures. Which channel mapping is correct?

Answer: Roughness → Glossiness (inverted), Metallic → Specular color

In specular-gloss workflow, glossiness is the inverse of roughness, and specular color is derived from the metallic mask applied to the albedo.

An environment artist's stone floor shows visible tiling seams in the final render. What is the best fix that avoids replacing the texture?

Answer: Use a stochastic texture sampling or histogram-preserving tiling node

Stochastic or histogram-preserving tiling randomizes texture placement to break visible repeat patterns without changing the source texture.

A character artist bakes a high-poly sculpt's details onto a low-poly mesh but gets shading artifacts along hard edges. What is the primary cause?

Answer: Smoothing groups or hard edges are not matching the bake cage splits

Mismatched smoothing groups and hard edges cause the baked normals to conflict with the mesh's own interpolated normals, creating artifacts.