2012

Mesh Modeling
A mesh model consists of vertices, edges, and faces that use polygonal
representation (including triangles and quads) to define a 3D shape.
Unlike solid models, mesh has no mass properties. However, as with 3D solids,
you can create primitive mesh forms such as boxes, cones, and pyramids,
starting in . You can modify mesh models in ways that are not available for
3D solids or surfaces. For example you can apply creases, splits, and increasing
levels of smoothness. You can drag mesh subobjects (faces, edges, and vertices)
to deform the object. To achieve more granular results, you can refine the
mesh in specific areas before modifying it.
Use mesh models to provide the hiding, shading, and rendering capabilities
of a solid model without the physical properties such as mass, moments of
inertia, and so on.
Advantages of 3D Modeling
Modeling in 3D has several advantages. You can
■ View the model from any vantage point
■ Generate reliable standard and auxiliary 2D views automatically
■ Create sections and 2D drawings
■ Remove hidden lines and do realistic shading
■ Check interferences and perform engineering analysis
■ Add lighting and create realistic rendering
■ Navigate through the model
Overview of 3D Modeling | 1027