3D Modeling Fundamentals Flashcards
6 cards from real 3D Product practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 3D Modeling Fundamentals flashcards as text
What does the term 'polygon mesh' refer to in 3D modeling?
Answer: A collection of vertices, edges, and faces that define a 3D object's shape
A polygon mesh is the geometric data structure that defines a 3D object using interconnected vertices, edges, and polygonal faces.
Which modeling technique builds shapes by adding or subtracting geometric primitives?
Answer: Constructive Solid Geometry (CSG)
Constructive Solid Geometry (CSG) creates complex shapes through Boolean operations like union, difference, and intersection of simple primitives.
What is a NURBS curve in 3D modeling?
Answer: Non-Uniform Rational B-Spline, a mathematical curve used to create smooth surfaces
NURBS (Non-Uniform Rational B-Splines) are mathematical representations used to define smooth, precise curves and surfaces in 3D modeling.
What does 'UV unwrapping' accomplish in 3D product modeling?
Answer: It flattens a 3D model's surface into a 2D map for texture application
UV unwrapping projects a 3D model's surface onto a flat 2D plane, creating a UV map that allows textures to be accurately applied.
In 3D modeling, what is 'subdivision surface' modeling?
Answer: A technique that smooths a low-poly mesh by dividing polygons into smaller ones
Subdivision surface modeling smooths and refines a coarse mesh by recursively dividing each polygon into smaller ones to create organic, smooth forms.
What is the purpose of a 'normal map' in 3D product visualization?
Answer: To simulate fine surface detail without adding extra geometry
A normal map encodes surface direction data to simulate fine details like scratches and bumps on a surface without increasing polygon count.