private void GenerateBillboardCell(BillboardCell billboardCell)
{
Vector3 terrainPosition = VegetationSystem.UnityTerrainData.terrainPosition;
List <VegetationCell> intercectingVegetationCellList =
VegetationSystem.VegetationCellQuadTree.Query(billboardCell.Rectangle);
//VegetationSystem.SpawnCells(3, intercectingVegetationCellList);
billboardCell.MaterialList = _vegetationItemBillboardMaterialList;
billboardCell.AddVegetationCells(intercectingVegetationCellList, terrainPosition);
billboardCell.GenerateBillboardMeshes(terrainPosition);
}
public void SetupBillboardCells()
{
if (!VegetationSystem)
{
return;
}
if (VegetationSystem.UnityTerrainData == null)
{
return;
}
Random.InitState(VegetationSystem.vegetationSettings.RandomSeed);
ClearBillboardCells();
BillboardCellQuadTree =
new QuadTree <BillboardCell>(VegetationSystem.UnityTerrainData.GetTerrainRect(CellSize));
int cellXCount = Mathf.CeilToInt(VegetationSystem.UnityTerrainData.size.x / CellSize);
int cellZCount = Mathf.CeilToInt(VegetationSystem.UnityTerrainData.size.z / CellSize);
float worldSpaceMaxTreeHeight = GetWorldSpaceMaxTreeHeight();
float worldSpaceMinTreeHeight = GetWorldSpaceMinTreeHeight();
float yExtent = (worldSpaceMaxTreeHeight + worldSpaceMinTreeHeight) / 2f;
for (int x = 0; x <= cellXCount - 1; x++)
{
for (int z = 0; z <= cellZCount - 1; z++)
{
BillboardCell billboardCell = new BillboardCell
{
CellCorner = new Vector3(
VegetationSystem.UnityTerrainData.terrainPosition.x + CellSize * x,
VegetationSystem.UnityTerrainData.terrainPosition.y,
VegetationSystem.UnityTerrainData.terrainPosition.z + CellSize * z),
CellSize = new Vector3(CellSize, yExtent * 2, CellSize),
VegetationCellSize = VegetationSystem.CellSize,
CurrentvegetationPackage = VegetationSystem.CurrentVegetationPackage,
};
billboardCell.Init();
BillboardCellList.Add(billboardCell);
BillboardCellQuadTree.Insert(billboardCell);
}
}
}
