2000

AutoCAD 2000 Preview Guide Page 10 00000-005000-5513
smart object-demand-loading automatically loads the required data. For example, if a hatch boundary is
modified, the hatch pattern definition will automatically demand load and modify accordingly, instantly
providing feedback to you.
3DOrbit – Persistent Shading and Advanced 3D View Control
AutoCAD 2000 marks a further advance in 3D visualization in AutoCAD software, making it both faster
and more intuitive. For example, the 3DOrbit feature enables you to perform fast, real-time rotation and
zooming of rendered and wireframe models. With 3DOrbit, you can also dynamically create, view, check,
or edit 3D models from any angle in a perspective or parallel view. Additionally, model sections can be
viewed using dynamic front- and back-clipping planes that reduce the visual complexity of 3D models.
3DOrbit (left) in Gouraud shaded mode with 3D UCS icon
Such new visualization tools as a 3D grid plane and optional front- and back- clipping planes help
designers understand and convey their design ideas. And a variety of shading modes, such as hidden
wireframe or Gouraud, can be set persistently in different viewports. These new visualization tools assist
any customer, from novice to expert, by making the viewing of 3D models easier and more intuitive.
Persistent Shading Modes