bool DiCullNode::IsIn( DiAABB &box )
{
if (box.IsNull())
{
return false;
}
if (box.IsInfinite())
{
return true;
}
DiVec3 center = mWorldAABB.GetMaximum().midPoint( mWorldAABB.GetMinimum() );
DiVec3 bmin = box.GetMinimum();
DiVec3 bmax = box.GetMaximum();
bool centre = ( bmax > center && bmin < center );
if (!centre)
{
return false;
}
DiVec3 octreeSize = bmax - bmin;
DiVec3 nodeSize = mWorldAABB.GetMaximum() - mWorldAABB.GetMinimum();
return nodeSize < octreeSize;
}
void DiFocusedShadowPolicy::PointListBody::addAAB(const DiAABB& aab)
{
const DiVec3& min = aab.GetMinimum();
const DiVec3& max = aab.GetMaximum();
DiVec3 currentVertex = min;
// min min min
addPoint(currentVertex);
// min min max
currentVertex.z = max.z;
addPoint(currentVertex);
// min max max
currentVertex.y = max.y;
addPoint(currentVertex);
// min max min
currentVertex.z = min.z;
addPoint(currentVertex);
// max max min
currentVertex.x = max.x;
addPoint(currentVertex);
// max max max
currentVertex.z = max.z;
addPoint(currentVertex);
// max min max
currentVertex.y = min.y;
addPoint(currentVertex);
// max min min
currentVertex.z = min.z;
addPoint(currentVertex);
}