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3D Modeling and Display

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3D Modeling and Display

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    1. 3D Modeling and Display

    2. 3D Model Types Wireframe Surface Solid Parametric

    3. Wireframe Models 3D model created with ordinary lines, circles, arcs, etc., to represent edges Only vertex and edge data is stored No shading, hidden line removal

    4. Surface Models Model with surface objects Meshes frequently used to represent surfaces Surface, edge, & vertex information stored Shading, hidden line removal Useful for modeling shapes with complex curvature (e.g., hull forms, airfoils, automobiles)

    5. Solid Models Model with solid objects (e.g., primitives, sweeps) Database contains information about vertices, edges, surfaces, and the space enclosed by the surfaces Mass and material properties Interference checking Shading and hidden line removal

    6. 3D Display Wireframe Hidden line / hidden surface Shaded Rendered

    7. Wireframe Display Model edges and contours are visible (Model may be wireframe, surface, solid or parametric) Simpler and faster than shaded display Trade-off between complexity and speed

    8. Hidden Line/Surface Display Hidden line/surface removal - class of algorithms used to determine model edges, surfaces, or volumes that are visible or invisible from a particular viewpoint

    9. Shaded Display

    10. Rendered Display Single, shaded view of a 3D model to which colors, materials, textures and lighting have been added

    12. 3D Modeling and Display Akahaw Huwa!

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