#include <osg/Texture2D>
#include <osg/PositionAttitudeTransform>
#include <osg/Vec4f>
+#include <osgSim/Impostor>
#include <simgear/compiler.h>
double SGCloudField::timer_dt = 0.0;
float SGCloudField::view_distance = 20000.0f;
bool SGCloudField::wrap = true;
-float SGCloudField::RADIUS_LEVEL_1 = 5000.0f;
-float SGCloudField::RADIUS_LEVEL_2 = 1000.0f;
+float SGCloudField::MAX_CLOUD_DEPTH = 2000.0f;
+bool SGCloudField::use_impostors = false;
+float SGCloudField::lod1_range = 8000.0f;
+float SGCloudField::lod2_range = 4000.0f;
+float SGCloudField::impostor_distance = 15000.0f;
+
+int impostorcount = 0;
+int lodcount = 0;
+int cloudcount = 0;
SGVec3f SGCloudField::view_vec, SGCloudField::view_X, SGCloudField::view_Y;
++itr) {
osg::ref_ptr<osg::PositionAttitudeTransform> pat = itr->second;
+
+ if (pat == 0) {
+ continue;
+ }
+
osg::Vec3f currpos = field_transform->getPosition() + fta * pat->getPosition();
// Determine the vector from the new position to the cloud in cloud-space.
field_transform->addChild(altitude_transform.get());
placed_root = new osg::Group();
altitude_transform->addChild(placed_root);
+ impostorcount = 0;
+ lodcount = 0;
+ cloudcount = 0;
}
SGCloudField::~SGCloudField() {
- }
+}
void SGCloudField::clear(void) {
cloud_hash.clear();
}
-void SGCloudField::applyVisRange(void)
+void SGCloudField::applyVisAndLoDRange(void)
{
for (unsigned int i = 0; i < placed_root->getNumChildren(); i++) {
osg::ref_ptr<osg::LOD> lodnode1 = (osg::LOD*) placed_root->getChild(i);
for (unsigned int j = 0; j < lodnode1->getNumChildren(); j++) {
+ lodnode1->setRange(j, 0.0f, lod1_range + lod2_range + view_distance + MAX_CLOUD_DEPTH);
osg::ref_ptr<osg::LOD> lodnode2 = (osg::LOD*) lodnode1->getChild(j);
for (unsigned int k = 0; k < lodnode2->getNumChildren(); k++) {
- lodnode2->setRange(k, 0.0f, view_distance);
+ lodnode2->setRange(k, 0.0f, view_distance + MAX_CLOUD_DEPTH);
}
}
}
bool SGCloudField::addCloud(float lon, float lat, float alt, int index, osg::ref_ptr<EffectGeode> geode) {
return addCloud(lon, lat, alt, 0.0f, 0.0f, index, geode);
- }
+}
bool SGCloudField::addCloud(float lon, float lat, float alt, float x, float y, int index, osg::ref_ptr<EffectGeode> geode) {
// If this cloud index already exists, don't replace it.
addCloudToTree(transform, lon, lat, alt, x, y);
cloud_hash[index] = transform;
return true;
- }
-
+}
+
// Remove a give cloud from inside the tree, without removing it from the cloud hash
void SGCloudField::removeCloudFromTree(osg::ref_ptr<osg::PositionAttitudeTransform> transform)
{
+ if (transform == 0)
+ {
+ // Ooops!
+ return;
+ }
osg::ref_ptr<osg::Group> lodnode = transform->getParent(0);
lodnode->removeChild(transform);
+ cloudcount--;
- // Clean up the LOD nodes if required
if (lodnode->getNumChildren() == 0) {
osg::ref_ptr<osg::Group> lodnode1 = lodnode->getParent(0);
-
+ osg::ref_ptr<osgSim::Impostor> impostornode = (osgSim::Impostor*) lodnode1->getParent(0);
+
lodnode1->removeChild(lodnode);
-
+ lodcount--;
+
if (lodnode1->getNumChildren() == 0) {
- placed_root->removeChild(lodnode1);
+ impostornode->removeChild(lodnode1);
+ placed_root->removeChild(impostornode);
+ impostorcount--;
}
}
}
bool found = false;
osg::ref_ptr<osg::LOD> lodnode1;
osg::ref_ptr<osg::LOD> lodnode;
+ osg::ref_ptr<osgSim::Impostor> impostornode;
for (unsigned int i = 0; (!found) && (i < placed_root->getNumChildren()); i++) {
lodnode1 = (osg::LOD*) placed_root->getChild(i);
- if ((lodnode1->getCenter() - pos).length2() < RADIUS_LEVEL_1*RADIUS_LEVEL_1) {
- // New cloud is within RADIUS_LEVEL_1 of the center of the LOD node.
- found = true;
- }
+ if ((lodnode1->getCenter() - pos).length2() < lod1_range*lod1_range) {
+ // New cloud is within RADIUS_LEVEL_1 of the center of the LOD node.
+ found = true;
+ }
}
if (!found) {
- lodnode1 = new osg::LOD();
- placed_root->addChild(lodnode1.get());
+ if (use_impostors) {
+ impostornode = new osgSim::Impostor();
+ impostornode->setImpostorThreshold(impostor_distance);
+ //impostornode->setImpostorThresholdToBound();
+ //impostornode->setCenter(pos);
+ placed_root->addChild(impostornode.get());
+ lodnode1 = (osg::ref_ptr<osg::LOD>) impostornode;
+ } else {
+ lodnode1 = new osg::LOD();
+ placed_root->addChild(lodnode1.get());
+ }
+ impostorcount++;
}
// Now check if there is a second level LOD node at an appropriate distance
found = false;
-
- for (unsigned int j = 0; (!found) && (j < lodnode1->getNumChildren()); j++) {
+
+ for (unsigned int j = 0; (!found) && (j < lodnode1->getNumChildren()); j++) {
lodnode = (osg::LOD*) lodnode1->getChild(j);
- if ((lodnode->getCenter() - pos).length2() < RADIUS_LEVEL_2*RADIUS_LEVEL_2) {
+ if ((lodnode->getCenter() - pos).length2() < lod2_range*lod2_range) {
// We've found the right leaf LOD node
found = true;
}
}
if (!found) {
- // No suitable leave node was found, so we need to add one.
+ // No suitable leaf node was found, so we need to add one.
lodnode = new osg::LOD();
- lodnode1->addChild(lodnode, 0.0f, 4*RADIUS_LEVEL_1);
- }
-
+ lodnode1->addChild(lodnode, 0.0f, lod1_range + lod2_range + view_distance + MAX_CLOUD_DEPTH);
+ lodcount++;
+ }
+
transform->setPosition(pos);
- lodnode->addChild(transform.get(), 0.0f, view_distance);
+ lodnode->addChild(transform.get(), 0.0f, view_distance + MAX_CLOUD_DEPTH);
+ cloudcount++;
+ SG_LOG(SG_ENVIRONMENT, SG_DEBUG, "Impostors: " << impostorcount <<
+ " LoD: " << lodcount <<
+ " Clouds: " << cloudcount);
lodnode->dirtyBound();
lodnode1->dirtyBound();
bool SGCloudField::deleteCloud(int identifier) {
osg::ref_ptr<osg::PositionAttitudeTransform> transform = cloud_hash[identifier];
- if (transform == NULL) return false;
+ if (transform == 0) return false;
removeCloudFromTree(transform);
cloud_hash.erase(identifier);
}
bool SGCloudField::isDefined3D(void) {
- return (cloud_hash.size() > 0);
+ return (! cloud_hash.empty());
}
SGCloudField::CloudFog::CloudFog() {
projects / simgear.git / blobdiff