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attempts to fix spellcasting freezes (#3146)

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Firstly, this PR reintroduces commit "Recreate a special case for IntersectionVisitor on QuadTreeWorld" we forgot to reapply while reverting a revert commit. Secondly, in cases we still need to build a view for an intersection visitor, we now use the available `osgUtil::IntersectionVisitor::getReferenceEyePoint` instead of falling back to the origin position that was previously causing long rebuild times.
This commit is contained in:
Bo Svensson 2021-10-04 20:00:31 +00:00 committed by GitHub
parent 14d15dcfac
commit 3f731cd102
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 6 additions and 6 deletions
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6
components/terrain/quadtreeworld.cpp
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@ -456,13 +456,13 @@ void QuadTreeWorld::accept(osg::NodeVisitor &nv)
osg::Object * viewer = isCullVisitor ? static_cast<osgUtil::CullVisitor*>(&nv)->getCurrentCamera() : nullptr;
bool needsUpdate = true;
ViewData *vd = mViewDataMap->getViewData(viewer, nv.getViewPoint(), mActiveGrid, needsUpdate);
osg::Vec3f viewPoint = viewer ? nv.getViewPoint() : nv.getEyePoint();
ViewData *vd = mViewDataMap->getViewData(viewer, viewPoint, mActiveGrid, needsUpdate);
if (needsUpdate)
{
vd->reset();
DefaultLodCallback lodCallback(mLodFactor, mMinSize, mViewDistance, mActiveGrid);
mRootNode->traverseNodes(vd, nv.getViewPoint(), &lodCallback);
mRootNode->traverseNodes(vd, viewPoint, &lodCallback);
}
const float cellWorldSize = mStorage->getCellWorldSize();

6
components/terrain/viewdata.cpp
View file

@ -143,7 +143,7 @@ ViewData *ViewDataMap::getViewData(osg::Object *viewer, const osg::Vec3f& viewPo
if (!(vd->suitableToUse(activeGrid) && (vd->getViewPoint()-viewPoint).length2() < mReuseDistance*mReuseDistance && vd->getWorldUpdateRevision() >= mWorldUpdateRevision))
{
float shortestDist = mReuseDistance*mReuseDistance;
float shortestDist = viewer ? mReuseDistance*mReuseDistance : std::numeric_limits<float>::max();
const ViewData* mostSuitableView = nullptr;
for (const ViewData* other : mUsedViews)
{
@ -157,12 +157,12 @@ ViewData *ViewDataMap::getViewData(osg::Object *viewer, const osg::Vec3f& viewPo
}
}
}
if (mostSuitableView)
if (mostSuitableView && mostSuitableView != vd)
{
vd->copyFrom(*mostSuitableView);
return vd;
}
else
else if (!mostSuitableView)
{
vd->setViewPoint(viewPoint);
vd->setActiveGrid(activeGrid);