FGFS-4.1/simgear
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spt: Introduce a third layer of paged nodes.

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This commit is contained in:
Mathias Froehlich 2013-01-22 06:13:10 +01:00
parent d2622a5d86
commit 3a668232c8
1 changed files with 14 additions and 7 deletions
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21
simgear/scene/tgdb/ReaderWriterSPT.cxx
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@ -190,9 +190,20 @@ osg::ref_ptr<osg::Node>
ReaderWriterSPT::createTree(const BucketBox& bucketBox, const osgDB::Options* options, bool topLevel) const
{
if (bucketBox.getIsBucketSize()) {
return createPagedLOD(bucketBox, options);
} else if (!topLevel && bucketBox.getStartLevel() == 4) {
std::string fileName;
fileName = bucketBox.getBucket().gen_index_str() + std::string(".stg");
return osgDB::readRefNodeFile(fileName, options);
} else if (!topLevel && bucketBox.getStartLevel() == 3) {
// We want an other level of indirection for paging
// Here we get about 12x12 deg tiles
return createPagedLOD(bucketBox, options);
} else if (!topLevel && bucketBox.getStartLevel() == 5) {
// We want an other level of indirection for paging
// Here we get about 2x2 deg tiles
return createPagedLOD(bucketBox, options);
} else if (!topLevel && bucketBox.getStartLevel() == 7) {
// We want an other level of indirection for paging
// Here we get about 0.5x0.5 deg tiles
return createPagedLOD(bucketBox, options);
} else {
BucketBox bucketBoxList[100];
@ -238,11 +249,7 @@ ReaderWriterSPT::createPagedLOD(const BucketBox& bucketBox, const osgDB::Options
localOptions->setPluginStringData("SimGear::PARTICLESYSTEM", "OFF");
pagedLOD->setDatabaseOptions(localOptions.get());
float range;
if (bucketBox.getIsBucketSize())
range = 200e3;
else
range = 1e6;
float range = 3*sphere.getRadius();
// Add the static sea level textured shell
osg::ref_ptr<osg::Node> tile = createSeaLevelTile(bucketBox, options);