What can be extruded besides faces in Unity?

Prepare for the Unity Certified User – Artist exam. Practice with interactive content that includes multiple choice questions with hints and explanations. Get ready to showcase your Unity skills!

In Unity, extrusion typically refers to the process of extending geometry in a direction perpendicular to a surface. While faces are the most common elements that can be extruded, edges can also be extruded to create additional geometry. When edges are extruded, new geometry is generated that maintains the edge's original shape, allowing for more complex models to be created efficiently.

Extruding edges allows artists to add detail or complexity to a mesh while maintaining a coherent structure. This technique is particularly useful in 3D modeling because it can rapidly alter the form of an object without needing to create entirely new geometry from scratch.

Other elements mentioned, such as vertex points, normals, and texture maps, do not support the same geometrical transformation process. Vertex points are individual positions in space and do not represent surfaces that can be extended, normals are vectors that describe direction but have no geometric substance to be extruded, and texture maps are 2D images applied to the surfaces of objects, thereby lacking the three-dimensional capacity to be extruded. These characteristics solidify why edges are a valid choice for extrusion in Unity, enhancing the flexibility and creativity during the modeling process.

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