void LLDrawable::updateSpatialExtents()
{
if (mVObjp)
{
const LLVector4a* exts = getSpatialExtents();
LLVector4a extents[2];
extents[0] = exts[0];
extents[1] = exts[1];
mVObjp->updateSpatialExtents(extents[0], extents[1]);
setSpatialExtents(extents[0], extents[1]);
}
updateBinRadius();
if (mSpatialBridge.notNull())
{
getGroupPosition().splat(0.f);
}
}
void LLVOCacheEntry::setBoundingInfo(const LLVector3& pos, const LLVector3& scale)
{
LLVector4a center, newMin, newMax;
center.load3(pos.mV);
LLVector4a size;
size.load3(scale.mV);
newMin.setSub(center, size);
newMax.setAdd(center, size);
setPositionGroup(center);
setSpatialExtents(newMin, newMax);
if(getNumOfChildren() > 0) //has children
{
updateParentBoundingInfo();
}
else
{
setBinRadius(llmin(size.getLength3().getF32() * 4.f, 256.f));
}
}
//make the parent bounding box to include this child
void LLVOCacheEntry::updateParentBoundingInfo(const LLVOCacheEntry* child)
{
const LLVector4a* child_exts = child->getSpatialExtents();
LLVector4a newMin, newMax;
newMin = child_exts[0];
newMax = child_exts[1];
//move to regional space.
{
const LLVector4a& parent_pos = getPositionGroup();
newMin.add(parent_pos);
newMax.add(parent_pos);
}
//update parent's bbox(min, max)
const LLVector4a* parent_exts = getSpatialExtents();
update_min_max(newMin, newMax, parent_exts[0]);
update_min_max(newMin, newMax, parent_exts[1]);
for(S32 i = 0; i < 4; i++)
{
llclamp(newMin[i], 0.f, 256.f);
llclamp(newMax[i], 0.f, 256.f);
}
setSpatialExtents(newMin, newMax);
//update parent's bbox center
LLVector4a center;
center.setAdd(newMin, newMax);
center.mul(0.5f);
setPositionGroup(center);
//update parent's bbox size vector
LLVector4a size;
size.setSub(newMax, newMin);
size.mul(0.5f);
setBinRadius(llmin(size.getLength3().getF32() * 4.f, 256.f));
}
void LLSpatialBridge::updateSpatialExtents()
{
LLSpatialGroup* root = (LLSpatialGroup*) mOctree->getListener(0);
{
LLFastTimer ftm(FTM_CULL_REBOUND);
root->rebound();
}
const LLVector4a* root_bounds = root->getBounds();
LLVector4a offset;
LLVector4a size = root_bounds[1];
const LLMatrix4a& mat = mDrawable->getXform()->getWorldMatrix();
LLVector4a t;
t.splat(0.f);
LLVector4a center;
mat.affineTransform(t, center);
mat.rotate(root_bounds[0], offset);
center.add(offset);
LLVector4a v[4];
//get 4 corners of bounding box
mat.rotate(size,v[0]);
LLVector4a scale;
scale.set(-1.f, -1.f, 1.f);
scale.mul(size);
mat.rotate(scale, v[1]);
scale.set(1.f, -1.f, -1.f);
scale.mul(size);
mat.rotate(scale, v[2]);
scale.set(-1.f, 1.f, -1.f);
scale.mul(size);
mat.rotate(scale, v[3]);
LLVector4a newMin;
LLVector4a newMax;
newMin = newMax = center;
for (U32 i = 0; i < 4; i++)
{
LLVector4a delta;
delta.setAbs(v[i]);
LLVector4a min;
min.setSub(center, delta);
LLVector4a max;
max.setAdd(center, delta);
newMin.setMin(newMin, min);
newMax.setMax(newMax, max);
}
setSpatialExtents(newMin, newMax);
LLVector4a diagonal;
diagonal.setSub(newMax, newMin);
mRadius = diagonal.getLength3().getF32() * 0.5f;
LLVector4a& pos = getGroupPosition();
pos.setAdd(newMin,newMax);
pos.mul(0.5f);
updateBinRadius();
}
