internal void Internal_UpdateLODsAsync(HashSet <Vector2> vertexPool)
{
LOD lod0 = new LOD(0, new Renderer[] { MeshRendererComponent });
LodGroupComponent.SetLODs(new LOD[] { lod0 });
if (Terrain.TerrainData.Geometry.LODCount == 1)
{
GUtilities.ClearChildren(transform);
}
for (int i = 1; i < Terrain.TerrainData.Geometry.LODCount; ++i)
{
GTerrainChunkLOD chunkLod = GetChunkLOD(i);
chunkLod.MeshRendererComponent.enabled = false;
}
int meshResolution = 0;
Rect uvRange = GetUvRange();
HashSet <Vector2> seamVertices = new HashSet <Vector2>();
subDivTree.ForEachLeaf(n =>
{
if (!GUtilities.IsRectContainPointExclusive(uvRange, n.V0))
{
seamVertices.Add(n.V0);
}
if (!GUtilities.IsRectContainPointExclusive(uvRange, n.V1))
{
seamVertices.Add(n.V1);
}
if (!GUtilities.IsRectContainPointExclusive(uvRange, n.V2))
{
seamVertices.Add(n.V2);
}
meshResolution = Mathf.Max(meshResolution, n.Level);
});
ThreadPool.QueueUserWorkItem(state =>
{
try
{
GSubDivisionTree[] lodTrees = new GSubDivisionTree[Terrain.TerrainData.Geometry.LODCount];
for (int level = 1; level < Terrain.TerrainData.Geometry.LODCount; ++level)
{
int i = level;
int baseResolution = Terrain.TerrainData.Geometry.PolygonDistribution == GPolygonDistributionMode.Dynamic ?
Terrain.TerrainData.Geometry.MeshBaseResolution :
0;
int targetResolution = Mathf.Max(baseResolution, meshResolution - i);
lodTrees[i] = subDivTree.Clone(targetResolution);
StitchSeamLOD(lodTrees[i], seamVertices);
//StitchGeometrySeamsOnSubDivTree(vertexPool, lodTrees[i]);
EnqueueMainThreadJob(() =>
{
Mesh meshLod = GetMesh(i);
UpdateMesh(meshLod, lodTrees[i]);
GTerrainChunkLOD chunkLod = GetChunkLOD(i);
chunkLod.MeshFilterComponent.sharedMesh = meshLod;
});
}
EnqueueMainThreadJob(() =>
{
float transitionStep = 1.0f / Terrain.TerrainData.Geometry.LODCount;
LOD[] lods = new LOD[Terrain.TerrainData.Geometry.LODCount];
lods[0] = new LOD(
GGriffinSettings.Instance.LodTransition.Evaluate(transitionStep),
new Renderer[] { MeshRendererComponent });
for (int level = 1; level < Terrain.TerrainData.Geometry.LODCount; ++level)
{
int i = level;
lods[i] = new LOD(
GGriffinSettings.Instance.LodTransition.Evaluate((i + 1) * transitionStep),
new Renderer[] { GetChunkLOD(i).MeshRendererComponent });
GTerrainChunkLOD chunkLod = GetChunkLOD(i);
chunkLod.MeshRendererComponent.enabled = true;
}
LodGroupComponent.SetLODs(lods);
Internal_UpdateRenderer();
});
}
catch (System.Exception e)
{
Debug.Log(e.ToString());
}
});
}
