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Code Issues Releases Wiki Activity

Reject QuadTreeNodes with invalid bounds

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This commit is contained in:
scrawl 2017-03-08 23:49:58 +01:00
parent 7d004bf757
commit f19a88be9d
2 changed files with 7 additions and 0 deletions
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5
components/terrain/quadtreenode.cpp
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@ -58,6 +58,7 @@ QuadTreeNode* searchNeighbour (QuadTreeNode* currentNode, Direction dir)
QuadTreeNode::QuadTreeNode(QuadTreeNode* parent, ChildDirection direction, float size, const osg::Vec2f& center)
: mParent(parent)
, mDirection(direction)
, mValidBounds(false)
, mSize(size)
, mCenter(center)
{
@ -90,6 +91,9 @@ void QuadTreeNode::initNeighbours()
void QuadTreeNode::traverse(osg::NodeVisitor &nv)
{
if (!hasValidBounds())
return;
if (nv.getVisitorType() == osg::NodeVisitor::CULL_VISITOR)
{
osgUtil::CullVisitor* cv = static_cast<osgUtil::CullVisitor*>(&nv);
@ -136,6 +140,7 @@ ViewData* QuadTreeNode::getView(osg::NodeVisitor &nv)
void QuadTreeNode::setBoundingBox(const osg::BoundingBox &boundingBox)
{
mBoundingBox = boundingBox;
mValidBounds = boundingBox.valid();
dirtyBound();
getBound();
}

2
components/terrain/quadtreenode.hpp
View file

@ -51,6 +51,7 @@ namespace Terrain
void setBoundingBox(const osg::BoundingBox& boundingBox);
const osg::BoundingBox& getBoundingBox() const;
bool hasValidBounds() const { return mValidBounds; }
virtual osg::BoundingSphere computeBound() const;
@ -81,6 +82,7 @@ namespace Terrain
ChildDirection mDirection;
osg::BoundingBox mBoundingBox;
bool mValidBounds;
float mSize;
osg::Vec2f mCenter;