internal void Internal_UpdateMeshLOD0()
{
Mesh meshLod0 = GetMesh(0);
UpdateMesh(meshLod0, subDivTree);
MeshFilterComponent.sharedMesh = meshLod0;
MeshColliderComponent.sharedMesh = meshLod0;
GCommon.SetDirty(meshLod0);
}
public void DeleteMesh(Vector3Int key)
{
if (Meshes.ContainsKey(key))
{
Mesh m = Meshes[key];
if (m != null)
{
GUtilities.DestroyObject(m);
}
Meshes.Remove(key);
GCommon.SetDirty(this);
}
}
public void DeleteMesh(string key)
{
if (GeneratedMeshes.ContainsKey(key))
{
Mesh m = GeneratedMeshes[key];
if (m != null)
{
GUtilities.DestroyObject(m);
}
GeneratedMeshes.Remove(key);
GCommon.SetDirty(this);
}
}
public void SetMesh(string key, Mesh mesh)
{
if (GeneratedMeshes.ContainsKey(key))
{
Mesh oldMesh = GeneratedMeshes[key];
if (oldMesh != null)
{
GUtilities.DestroyObject(oldMesh);
}
GeneratedMeshes.Remove(key);
}
GCommon.TryAddObjectToAsset(mesh, this);
GeneratedMeshes.Add(key, mesh);
GCommon.SetDirty(this);
}
public void UpdateMesh(int prototypeIndex)
{
if (Foliage.Grasses == null)
{
return;
}
if (prototypeIndex < 0 || prototypeIndex >= Foliage.Grasses.Prototypes.Count)
{
return;
}
StripInstances(prototypeIndex);
string key = GetPatchMeshName(Index, prototypeIndex);
Mesh m = Foliage.TerrainData.FoliageData.GetMesh(key);
if (m != null && Foliage.TerrainData.Foliage.GrassInstanceCount == 0)
{
Foliage.TerrainData.FoliageData.DeleteMesh(key);
return;
}
else if (m == null)
{
m = new Mesh();
m.MarkDynamic();
m.name = key;
Foliage.TerrainData.FoliageData.SetMesh(key, m);
}
GGrassPrototype prototype = Foliage.Grasses.Prototypes[prototypeIndex];
Mesh baseMesh = prototype.GetBaseMesh();
Vector3 terrainSize = new Vector3(
Foliage.TerrainData.Geometry.Width,
Foliage.TerrainData.Geometry.Height,
Foliage.TerrainData.Geometry.Length);
GCombineInfo meshTemplate = new GCombineInfo(baseMesh);
List <Matrix4x4> transforms = new List <Matrix4x4>();
Rect uvRange = GetUvRange();
for (int i = 0; i < Instances.Count; ++i)
{
GGrassInstance grass = Instances[i];
if (grass.PrototypeIndex != prototypeIndex)
{
continue;
}
if (!uvRange.Contains(new Vector2(grass.Position.x, grass.Position.z)))
{
continue;
}
Matrix4x4 t = Matrix4x4.TRS(
new Vector3(grass.Position.x * terrainSize.x, grass.Position.y * terrainSize.y + prototype.PivotOffset, grass.Position.z * terrainSize.z),
grass.Rotation,
new Vector3(prototype.Size.x * grass.Scale.x, prototype.Size.y * grass.Scale.y, prototype.Size.z * grass.Scale.z));
transforms.Add(t);
}
int vertexCount = meshTemplate.Vertices.Length * transforms.Count;
if (vertexCount > 65000)
{
string warning = string.Format("Failed to batch grass meshes at patch {0}, prototypeIndex {1} due to vertices limit (batch: {2}, limit: 65000). Consider removing some instances or increase Patch Grid Size and try again!", Index.ToString("0"), prototypeIndex, vertexCount);
Debug.LogWarning(warning);
}
GJobSystem.RunOnBackground(() =>
{
GCombineInfo result = GCombiner.Combine(meshTemplate, transforms);
System.Action task = () =>
{
if (result.Vertices.Length == 0)
{
Foliage.TerrainData.FoliageData.DeleteMesh(key);
}
else
{
m.Clear();
m.vertices = result.Vertices;
m.uv = result.UVs;
//m.colors32 = result.Colors;
m.triangles = result.Triangles;
m.RecalculateBounds();
//Reduce mesh storage space
m.colors32 = null;
m.normals = null;
m.tangents = null;
m.uv2 = null;
//m.RecalculateNormals();
//m.RecalculateTangents();
GCommon.SetDirty(m);
//System.GC.Collect(); ==>This line will cause the editor to hang soooooo long!
}
};
if (result.Vertices.Length < 1000)
{
GJobSystem.RunOnMainThread(task);
}
else
{
GJobSystem.ScheduleOnMainThread(task, 0);
}
});
}