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Quality Control & Assurance Flashcards

7 cards from real 3D Texturing practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Quality Control & Assurance flashcards as text

  1. Which file format is preferred for delivering 8-bit diffuse/albedo textures in a game pipeline due to its lossless compression and alpha support?

    Answer: PNG

    PNG provides lossless compression and supports an alpha channel, making it the standard for 8-bit albedo deliveries in game pipelines.

  2. A texture set passes individual map reviews but looks incorrect assembled in engine. Which QA step would catch this earliest?

    Answer: Assembling a material ball in the target renderer and doing a full-lighting pass

    Assembling a material ball in the target renderer shows how all maps interact together under real lighting conditions, catching cross-map issues.

  3. In PBR pipelines, why must normal maps be saved in a linear color space rather than sRGB?

    Answer: Normal maps store direction vectors, not color, so gamma correction would distort the shading

    Normal maps encode XYZ direction vectors; applying gamma correction would mathematically alter the vectors and produce incorrect surface shading.

  4. During texture QA, a reviewer identifies 'boiling' in a tiling texture when the camera moves. What causes this artifact?

    Answer: Incorrect mip map generation or missing mipmaps

    Boiling or shimmering during camera movement is caused by incorrect or missing mipmaps, which cause aliasing as the texture is sampled at different distances.

  5. What is the purpose of a 'texture budget' in game production QA?

    Answer: To ensure total VRAM usage from textures stays within hardware limits

    A texture budget caps total VRAM usage to ensure the game runs within the memory constraints of the target hardware without stuttering or crashes.

  6. A QA report states that an asset's roughness map shows 'clamping' at pure black or pure white values. Why is this a quality issue?

    Answer: Pure black/white roughness values produce physically impossible or extreme surface responses that look artificial

    Perfectly smooth (pure white) or completely rough (pure black) values rarely occur in nature and produce physically implausible results that look artificially digital.

  7. Which tool is most commonly used to validate that exported texture maps have the correct bit depth and channel count before pipeline submission?

    Answer: An image info tool such as ImageMagick's identify or Photoshop's Image Size panel

    Tools like ImageMagick's identify command or Photoshop's Image > Image Size panel quickly confirm bit depth, channel count, and resolution before submission.