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Virtual Planet Builder: Difference between revisions
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→Running VPB
| Line 63: | Line 63: | ||
-b -4 50 -3 51 \ | -b -4 50 -3 51 \ | ||
--PagedLOD \ | --PagedLOD \ | ||
-l | -l 4 \ | ||
--radius-to-max-visible-distance-ratio 5 \ | |||
-o vpb/w010n50/w004n50/ws_w004n50.osgb | -o vpb/w010n50/w004n50/ws_w004n50.osgb | ||
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* --PagedLOD to generate PagedLOD nodes | * --PagedLOD to generate PagedLOD nodes | ||
* -l 4 the number of LOD levels to generate. At the equator, a 1x1 degree tile has a 157km diagonal. The LoD follows a quad-tree like structure, with each LOD level having 4 sub-tiles in a 2x2 array. If we want our smallest tile to have a ~10km diagonal, we need 4 LoD levels | * -l 4 the number of LOD levels to generate. At the equator, a 1x1 degree tile has a 157km diagonal. The LoD follows a quad-tree like structure, with each LOD level having 4 sub-tiles in a 2x2 array. If we want our smallest tile to have a ~10km diagonal, we need 4 LoD levels | ||
* --radius-to-max-visible-distance-ratio is self-explanatory. We want the lowest level of LoD to be visible 20km away, so a ratio of 5 is appropriate. | |||
* -o is the output file, in this case native OSG binary format. FG expects WS3.0 data in a vpb subdirectory, with the structure shown. | * -o is the output file, in this case native OSG binary format. FG expects WS3.0 data in a vpb subdirectory, with the structure shown. | ||
[[Category:Scenery software]] | [[Category:Scenery software]] | ||