public void UpdateTerrainChunk()
{
if (mapDataReceived)
{
float viwerDistanceFromNearestEdge = Mathf.Sqrt(bounds.SqrDistance(viewerPosition));
bool visible = viwerDistanceFromNearestEdge <= maxViewDistance;
if (visible)
{
int lodIndex = 0;
for (int i = 0; i < detailLevels.Length - 1; i++)
{
if (viwerDistanceFromNearestEdge > detailLevels[i].visibleDistanceThreshold)
{
lodIndex = i + 1;
}
else
{
break;
}
}
if (lodIndex != previousLODIndex)
{
LODMesh lodMesh = lodMeshes[lodIndex];
if (lodMesh.hasMesh)
{
previousLODIndex = lodIndex;
meshFilter.mesh = lodMesh.mesh;
}
else if (!lodMesh.hasResquestedMesh)
{
lodMesh.ResquestMesh(mapData);
}
}
}
SetVisible(visible);
}
}