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Set minimum expiry time on STG nodes.

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Stuart Buchanan 4 years ago
parent aab373ac3a
commit 6ece39e34c
2 changed files with 15 additions and 6 deletions
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3
simgear/constants.h
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@ -218,6 +218,9 @@ const float SG_RADIANS_TO_DEGREES = 180.0f / SG_PI;
#define SG_OBJECT_RANGE_ROUGH 9000.0
#define SG_OBJECT_RANGE_DETAILED 1500.0
/** Minimum expiry time of PagedLOD within the Tile. Overridden by /sim/rendering/plod-minimum-expiry-time-secs **/
#define SG_TILE_MIN_EXPIRY 180.0
/** Radius of scenery tiles in m **/
#define SG_TILE_RADIUS 14000.0

18
simgear/scene/tgdb/ReaderWriterSTG.cxx
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@ -219,7 +219,8 @@ struct ReaderWriterSTG::_ModelBin {
STGObjectsQuadtree quadtree((GetModelLODCoord()), (AddModelLOD()));
quadtree.buildQuadTree(_objectStaticList.begin(), _objectStaticList.end());
osg::ref_ptr<osg::Group> group = quadtree.getRoot();
group->setName("STG-group-A");
string group_name = string("STG-group-A ").append(_bucket.gen_index_str());
group->setName(group_name);
group->setDataVariance(osg::Object::STATIC);
simgear::AirportSignBuilder signBuilder(_options->getMaterialLib(), _bucket.get_center());
@ -640,10 +641,12 @@ struct ReaderWriterSTG::_ModelBin {
{
osg::ref_ptr<SGReaderWriterOptions> options;
options = SGReaderWriterOptions::copyOrCreate(opt);
float pagedLODExpiry = atoi(options->getPluginStringData("SimGear::PAGED_LOD_EXPIRY").c_str());
osg::ref_ptr<osg::Group> terrainGroup = new osg::Group;
terrainGroup->setDataVariance(osg::Object::STATIC);
terrainGroup->setName("terrain");
std::string terrain_name = string("terrain ").append(bucket.gen_index_str());
terrainGroup->setName(terrain_name);
bool vpb_active = SGSceneFeatures::instance()->getVPBActive();
if (vpb_active) {
@ -702,11 +705,13 @@ struct ReaderWriterSTG::_ModelBin {
} else {
osg::PagedLOD* pagedLOD = new osg::PagedLOD;
pagedLOD->setCenterMode(osg::PagedLOD::USE_BOUNDING_SPHERE_CENTER);
pagedLOD->setName("pagedObjectLOD");
std::string name = string("pagedObjectLOD ").append(bucket.gen_index_str());
pagedLOD->setName(name);
// This should be visible in any case.
// If this is replaced by some lower level of detail, the parent LOD node handles this.
pagedLOD->addChild(terrainGroup, 0, std::numeric_limits<float>::max());
pagedLOD->setMinimumExpiryTime(0, pagedLODExpiry);
// we just need to know about the read file callback that itself holds the data
osg::ref_ptr<DelayLoadReadFileCallback> readFileCallback = new DelayLoadReadFileCallback;
@ -724,10 +729,11 @@ struct ReaderWriterSTG::_ModelBin {
// Objects may end up displayed up to 2x the object range.
pagedLOD->setRange(pagedLOD->getNumChildren(), 0, 2.0 * _object_range_rough);
pagedLOD->setMinimumExpiryTime(pagedLOD->getNumChildren(), pagedLODExpiry);
pagedLOD->setRadius(SG_TILE_RADIUS);
SG_LOG( SG_TERRAIN, SG_DEBUG, "Tile PagedLOD Center: " << pagedLOD->getCenter().x() << "," << pagedLOD->getCenter().y() << "," << pagedLOD->getCenter().z() );
SG_LOG( SG_TERRAIN, SG_DEBUG, "Tile PagedLOD Range: " << (2.0 * _object_range_rough));
SG_LOG( SG_TERRAIN, SG_DEBUG, "Tile PagedLOD Radius: " << SG_TILE_RADIUS);
SG_LOG( SG_TERRAIN, SG_DEBUG, "Tile " << bucket.gen_index_str() << " PagedLOD Center: " << pagedLOD->getCenter().x() << "," << pagedLOD->getCenter().y() << "," << pagedLOD->getCenter().z() );
SG_LOG( SG_TERRAIN, SG_DEBUG, "Tile " << bucket.gen_index_str() << " PagedLOD Range: " << (2.0 * _object_range_rough));
SG_LOG( SG_TERRAIN, SG_DEBUG, "Tile " << bucket.gen_index_str() << " PagedLOD Radius: " << SG_TILE_RADIUS);
return pagedLOD;
}
}

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