3D Texturing Professional Standards & Competencies 3 — Questions and Answers
Question 1: In a professional VFX studio, what is the correct colorspace to use when painting albedo/diffuse textures in Substance Painter?
- Linear
- sRGB (Correct answer)
- ACEScg
- Rec. 709
Correct answer: sRGB
Albedo/diffuse textures should be painted in sRGB colorspace because they represent color as perceived by the human eye, and the renderer will apply linearization at render time.
Question 2: What does a professional texture artist typically include in a texture LOD (Level of Detail) strategy for a AAA game?
- A single high-resolution texture for all distances
- Texture sets at 4K, 2K, 1K, and 512px for different viewing distances (Correct answer)
- Automatically generated mipmaps only
- Separate UV layouts for each LOD mesh
Correct answer: Texture sets at 4K, 2K, 1K, and 512px for different viewing distances
A proper LOD texture strategy provides multiple resolution variants (4K down to 512px) so engines can stream appropriate resolutions based on the asset's screen-space size.
Question 3: When freelancing for a client in the film industry, which professional practice protects both parties regarding texture asset ownership?
- Verbally agreeing on ownership at project start
- Including IP assignment and usage rights clauses in a written contract (Correct answer)
- Keeping all source files until final payment clears
- Uploading assets to a shared drive and sending an email
Correct answer: Including IP assignment and usage rights clauses in a written contract
A written contract with explicit IP assignment clauses is the professional and legally binding way to define who owns deliverables and how they may be used.
Question 4: A senior texture artist reviews your work and says your normals are 'baked in the wrong tangent space.' What does this mean?
- The normals were baked at too low a resolution
- The normal map was created for a different rendering engine or tool than where it's being used (Correct answer)
- The normal map's blue channel was inverted
- The mesh has inverted face normals
Correct answer: The normal map was created for a different rendering engine or tool than where it's being used
Tangent space normal maps are calculated relative to a specific coordinate system; baking in Mikk TSpace for one engine and using it in another with a different tangent basis causes lighting artifacts.
Question 5: What is the professional standard minimum padding (gutter) width between UV islands on a 2K texture to prevent mip-map bleed?
- 1 pixel
- 4 pixels (Correct answer)
- 16 pixels
- 32 pixels
Correct answer: 4 pixels
A minimum of 4 pixels of padding (gutter) between UV islands on a 2K texture prevents color bleeding between islands when lower mipmap levels are sampled by the GPU.
Question 6: In a collaborative studio environment, which version control approach is most appropriate for large binary texture files?
- Standard Git commits
- Git LFS (Large File Storage) (Correct answer)
- Manual file versioning with date suffixes
- Dropbox with auto-sync
Correct answer: Git LFS (Large File Storage)
Git LFS is designed to handle large binary assets like textures efficiently, storing them outside the main Git repository while maintaining version history.
Question 7: A texture artist is asked to create a 'tillable' texture for a floor. What professional quality check should they perform before delivery?
- Render it from 8 different camera angles
- Tile it 4x4 in the viewport to check for visible seams and repetition artifacts (Correct answer)
- Apply it to a sphere to check UV distortion
- Check the histogram for pure black or white values
Correct answer: Tile it 4x4 in the viewport to check for visible seams and repetition artifacts
Tiling a texture 4x4 in the viewport is the standard QA method to identify visible seams at edges and detect repetition patterns that break the illusion of a real surface.
3D Texturing Professional Standards & Competencies 3
In a professional VFX studio, what is the correct colorspace to use when painting albedo/diffuse textures in Substance Painter?