In 3D computer graphics terminology, a display of a volumetric model that renders every edge of the geometry without shaded faces is known as which type of representation?

Difficulty: Easy

Correct Answer: Wire-frame

Explanation:


Introduction / Context:
3D models can be rendered in several modes for different purposes such as editing, analysis, and presentation. A common view during design is one that emphasizes topology and geometry by drawing edges without surface shading. Understanding the terminology for these modes is foundational in CAD and graphics.



Given Data / Assumptions:

  • The model is volumetric (has 3D extent).
  • The display mode shows all edges only—no filled faces or shading.
  • We must identify the standard name of this representation.


Concept / Approach:
A 'wire-frame' view depicts only the edges, resembling a skeletal frame of lines. In contrast, 'surface' or 'solid' models imply additional information like face orientation, normals, and volumetric properties, which typically appear in shaded or hidden-line modes. Wire-frame is efficient for visualizing complex geometry and internal structures quickly but may suffer from visual clutter.



Step-by-Step Solution:

1) Match the description (all edges visible) to representation types.2) Exclude surface/solid, which focus on faces and volume properties.3) Select 'Wire-frame' as the correct term.


Verification / Alternative check:
Most CAD packages include view modes explicitly labeled 'wireframe,' 'shaded,' and 'hidden-line,' confirming the standard terminology.


Why Other Options Are Wrong:

Surface model: concerns faces; not only edges.3-D model: too generic; all options refer to 3D contexts.Solid model: implies volumetric semantics; not just edges.None: a correct term exists.


Common Pitfalls:
Confusing wire-frame with hidden-line; in hidden-line, occluded edges are suppressed, while pure wire-frame shows all edges.


Final Answer:
Wire-frame

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