Materials and Texturing Flashcards
6 cards from real 3D Product Animation practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Materials and Texturing flashcards as text
What is the purpose of a specular map in non-PBR product shading workflows?
Answer: To define which areas of the product surface reflect light and at what intensity
A specular map is a grayscale or color texture that controls where and how much specular (shiny) reflection appears on different areas of the product surface.
In 3D product animation, what is 'clearcoat' in a material shader used for?
Answer: Adding a secondary transparent reflective layer on top of a base material, simulating varnish or lacquer
Clearcoat adds a thin, highly reflective transparent layer over the base material to simulate lacquered, varnished, or car-paint-style finishes on products.
What does the term 'texel density' mean in product 3D animation, and why is it important?
Answer: The ratio of texture pixels to 3D surface area, ensuring consistent texture resolution across all product parts
Texel density measures how many texture pixels cover a unit of 3D surface area; consistent density across parts ensures no element looks blurrier or sharper than others.
What is a UDIM texture workflow and when is it used in product animation?
Answer: A UV layout method that spreads textures across multiple 1001-numbered tiles to achieve very high resolution on complex product surfaces
UDIM tiles each UV island in a separate numbered texture tile, allowing ultra-high resolution across complex surfaces like a detailed shoe or intricate electronic device.
In 3D product animation, what does 'emission' material property simulate?
Answer: Self-illumination of a surface, making it appear as a light source independent of scene lighting
Emission causes a material to emit light from its surface regardless of scene illumination, used for illuminated product screens, LED indicators, or glowing packaging elements.
What is the difference between a roughness map and a glossiness map in product material workflows?
Answer: They are inverses of each other: high roughness = low gloss; they control the same property but on an inverted scale
Roughness and glossiness are inverse representations of the same surface property — a value of 1 in roughness equals 0 in glossiness, so one must be inverted when switching between workflows.