source: GTP/trunk/Lib/Geom/shared/GeoTool/README.txt @ 1526

Revision 1526, 2.5 KB checked in by gumbau, 18 years ago (diff)

Updated modules to the new interface and the new simplification algorithm improvements.

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[1526]1Overview
2--------
3
4The GeoTool application exposes all the funcionality of the GTGeometry library to
5make it directly usable by the user. The features are: LodStrips generation and
6visualization, LodTree model generation and visualization, mesh simplification and
7stripification.
8These features are described in more detail in the Gametools Geometry User Manual
9and in the README.txt file of the GTGeometry project.
10
11The following sections will explain howto build a LodStrips and a LodTree object.
12This information is also available in the GameTools Geometry User Manual.
13
14HowTo construct a LodStrips model
15---------------------------------
16
17First step is open a mesh object. We can do this by the 'Open' option of the 'File'
18menu. The next step is to select option 'Generate' of the 'LODStrip' menu to begin
19the generation process. At right appears the 'Generate LODStrips' panel, in which
20we can choose the simplification methon between 'Geometry base' and 'Viewpoint Driven'.
21In addition, we must specify mesh reduction by percent or by the number of triangles
22to obtain. Pushing the 'Process' button the simplification is performed and its result
23can be viewed at screen. At this point, if the result of simplification don't like us,
24we can undo this step and change simplification options. In the other hand, if the
25results of the simplification are OK, we can build the LOD object pushing the 'Build'
26button and filling the name of this one. If we can view the result of build process
27can do this by selecting the option 'Visualize' of the menu 'LODStrips' that makes a
28slidebar appear in the right panel. By moving the slidebar we can change the Level
29Of Detail of the object.
30
31
32HowTo construct a LodTree model
33-------------------------------
34
35After having a tree mesh opened in the application, we must select the 'Select Leaves'
36option of the 'Edit' menu. This makes that the 'Select Leaves' panel appears. In this
37panel there is a mesh info browser that shows the submeshes in which is divided the
38object and relevant geometric information. Clicking a submesh in the browser paint this
39in red at the view window. We must choose the treetop submesh and push the button 'Process'
40to make the selection of leaves. Next we can go to do the LODStrip procress as described
41before. Finaly the result of the LODStrip process is used as inpunt of the LODTree one.
42Using the 'LODTree' menu we can perform the LODTree building following the same steps
43than a LODStrip process.
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