/*
* (non-Javadoc)
* @see rajawali.scenegraph.A_nAABBTree#split()
*/
@Override
protected void split() {
RajLog.d("[" + this.getClass().getName() + "] Spliting node: " + this);
// Populate child array
for (int i = 0; i < CHILD_COUNT; ++i) {
if (mChildren[i] == null) {
mChildren[i] =
new Octree(
this, mMergeThreshold, mSplitThreshold, mShrinkThreshold, mGrowThreshold, mOverlap);
}
mChildren[i].setBoundingColor(COLORS[i]);
mChildren[i].setChildRegion(i, mChildLengths);
}
super.split();
}
/*
* (non-Javadoc)
* @see rajawali.scenegraph.A_nAABBTree#setChildRegion(int, rajawali.math.Number3D)
*/
@Override
protected void setChildRegion(int octant, Vector3 side_lengths) {
mChildRegion = octant;
Vector3 min = mParent.getMin();
Vector3 max = mParent.getMax();
switch (mChildRegion) {
case 0: // +X/+Y/+Z
mMax.setAllFrom(mParent.getMax());
mMin.setAllFrom(Vector3.subtract(mMax, side_lengths));
break;
case 1: // -X/+Y/+Z
mMax.x = min.x + side_lengths.x;
mMax.y = max.y;
mMax.z = max.z;
mMin.x = min.x;
mMin.y = max.y - side_lengths.y;
mMin.z = max.z - side_lengths.z;
break;
case 2: // -X/-Y/+Z
mMax.x = min.x + side_lengths.x;
mMax.y = min.y + side_lengths.y;
mMax.z = max.z;
mMin.x = min.x;
mMin.y = min.y;
mMin.z = max.z - side_lengths.z;
break;
case 3: // +X/-Y/+Z
mMax.x = max.x;
mMax.y = min.y + side_lengths.y;
mMax.z = max.z;
mMin.x = max.x - side_lengths.x;
mMin.y = min.y;
mMin.z = max.z - side_lengths.z;
break;
case 4: // +X/+Y/-Z
mMax.x = max.x;
mMax.y = max.y;
mMax.z = min.z + side_lengths.z;
mMin.x = max.x - side_lengths.x;
mMin.y = max.y - side_lengths.y;
mMin.z = min.z;
break;
case 5: // -X/+Y/-Z
mMax.x = min.x + side_lengths.x;
mMax.y = max.y;
mMax.z = min.z + side_lengths.z;
mMin.x = min.x;
mMin.y = max.y - side_lengths.y;
mMin.z = min.z;
break;
case 6: // -X/-Y/-Z
mMin.setAllFrom(min);
mMax.setAllFrom(Vector3.add(mMin, side_lengths));
break;
case 7: // +X/-Y/-Z
mMax.x = max.x;
mMax.y = min.y + side_lengths.y;
mMax.z = min.z + side_lengths.z;
mMin.x = max.x - side_lengths.x;
mMin.y = min.y;
mMin.z = min.z;
break;
default:
return;
}
super.setChildRegion(octant, side_lengths);
}