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3D Modeling Flashcards

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

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  1. What is 'retopology' in the context of 3D modeling?

    Answer: Recreating a clean, optimized mesh over a high-resolution sculpt

    Retopology is the process of rebuilding a mesh with clean, animation-friendly topology on top of a high-polygon sculpt.

  2. Which of the following best describes 'normal mapping'?

    Answer: A texture that stores surface direction data to simulate fine detail on low-poly meshes

    Normal maps store RGB data encoding surface normals, tricking the renderer into displaying high-frequency detail without extra geometry.

  3. What is the main advantage of NURBS modeling over polygon modeling for industrial design?

    Answer: NURBS surfaces are mathematically smooth and precise at any scale

    NURBS curves and surfaces are defined by mathematical equations, guaranteeing perfect smoothness and precision needed for engineering.

  4. What does 'baking' mean in the context of 3D texturing?

    Answer: Transferring complex shading or geometry details from a high-res model to a texture map

    Baking captures lighting, normals, ambient occlusion, or other details from a complex source and stores them as texture maps for a low-poly asset.

  5. In 3D modeling, an 'edge loop' is best described as:

    Answer: A continuous ring of edges that travels around a surface

    An edge loop is a series of edges that form an unbroken ring following the contour of a mesh, essential for controlling form and deformation.

  6. What is the purpose of a 'cage mesh' in 3D production pipelines?

    Answer: To serve as a low-poly envelope used in baking to prevent self-intersection artifacts

    A cage mesh is a slightly inflated version of the low-poly mesh used during baking so rays are cast correctly and avoid projection errors.

  7. Which file format is commonly used to store 3D scenes and supports geometry, materials, and animation in a single file?

    Answer: .fbx

    FBX (Filmbox) is a widely supported format that stores meshes, materials, skeleton rigs, and animations, making it standard for game and VFX pipelines.