public void RetrieveVisibleMesh(Plane[] planes, Vector3 viewCenter, float[] lodPolicy, MTArray <uint> visible)
{
if (GeometryUtility.TestPlanesAABB(planes, Bound))
{
if (mSubNode == null)
{
float distance = Vector3.Distance(viewCenter, Bound.center);
for (uint lod = 0; lod < lodPolicy.Length; ++lod)
{
if (distance <= lodPolicy[lod])
{
uint patchId = (uint)MeshID;
patchId <<= 2;
patchId |= lod;
visible.Add(patchId);
break;
}
}
}
else
{
for (int i = 0; i < 4; ++i)
{
mSubNode[i].RetrieveVisibleMesh(planes, viewCenter, lodPolicy, visible);
}
}
}
}
public void GetVisibleMesh(Plane[] planes, Vector3 viewCenter, float[] lodPolicy, MTArray <uint> visible)
{
//TODO 原理是只有这个块完全在视野内 在会显示 有问题 需要只露出一点点就显示
if (GeometryUtility.TestPlanesAABB(planes, Bound))
{
if (m_SubNodes == null)
{
float distance = Vector3.Distance(viewCenter, Bound.center);
for (uint lod = 0; lod < lodPolicy.Length; ++lod)
{
if (distance <= lodPolicy[lod])
{
uint patchId = (uint)MeshID;
patchId <<= 2;
patchId |= lod;
visible.Add(patchId);
break;
}
}
}
else
{
for (int i = 0; i < 4; ++i)//递归一下
{
m_SubNodes[i].GetVisibleMesh(planes, viewCenter, lodPolicy, visible);
}
}
}
}