public void UpdateLODGroup(Camera camera, Vector3 cameraPosition, bool parentUsed)
{
if (m_LodGroup == null)
{
m_LodGroup = GetComponent <LODGroup>();
}
//if lodgroup is not exists, there is no mesh.
if (m_LodGroup == null)
{
return;
}
//if parent already visibled, don't need to visible to children.
if (parentUsed == true)
{
m_LodGroup.SetEnabled(false);
if (childVolumes.Count == 0)
{
foreach (var volumeGroup in m_VolumeGroups)
{
foreach (var group in volumeGroup.LODGroups)
{
group.SetEnabled(false);
}
}
}
else
{
foreach (var childVolume in childVolumes)
{
childVolume.UpdateLODGroup(camera, cameraPosition, true);
}
}
return;
}
int currentLod = m_LodGroup.GetCurrentLOD(camera);
if (currentLod == 0)
{
m_LodGroup.SetEnabled(false);
//leaf node have to used mesh own.
if (childVolumes.Count == 0)
{
foreach (var volumeGroup in m_VolumeGroups)
{
foreach (var group in volumeGroup.LODGroups)
{
group.SetEnabled(true);
}
}
}
else
{
foreach (var childVolume in childVolumes)
{
childVolume.UpdateLODGroup(camera, cameraPosition, false);
}
}
}
else if (currentLod == 1)
{
m_LodGroup.SetEnabled(true);
//leaf node have to used mesh own.
if (childVolumes.Count == 0)
{
foreach (var volumeGroup in m_VolumeGroups)
{
foreach (var group in volumeGroup.LODGroups)
{
group.SetEnabled(false);
}
}
}
else
{
foreach (var childVolume in childVolumes)
{
childVolume.UpdateLODGroup(camera, cameraPosition, true);
}
}
}
}