public void AddGrassInstances(List <GGrassInstance> instances)
{
Rect[] uvRects = new Rect[GrassPatches.Length];
for (int r = 0; r < uvRects.Length; ++r)
{
uvRects[r] = GrassPatches[r].GetUvRange();
}
int[] dirty = new int[GrassPatches.Length];
for (int i = 0; i < instances.Count; ++i)
{
GGrassInstance grass = instances[i];
for (int r = 0; r < uvRects.Length; ++r)
{
if (uvRects[r].Contains(new Vector2(grass.Position.x, grass.Position.z)))
{
grassPatches[r].Instances.Add(grass);
dirty[r] = 1;
break;
}
}
}
for (int i = 0; i < dirty.Length; ++i)
{
if (dirty[i] == 1)
{
GrassPatches[i].RecalculateBounds();
GrassPatches[i].Changed();
}
}
}
public static GGrassInstance Create(int prototypeIndex)
{
GGrassInstance instance = new GGrassInstance();
instance.PrototypeIndex = prototypeIndex;
instance.Position = Vector3.zero;
instance.Rotation = Quaternion.identity;
instance.Scale = Vector3.one;
return(instance);
}
internal void Deserialize()
{
if (prototypeIndexSerializeData != null &&
positionSerializeData != null &&
rotationSerializeData != null &&
scaleSerializeData != null)
{
prototypeIndexSerializeData = GCompressor.Decompress(prototypeIndexSerializeData);
positionSerializeData = GCompressor.Decompress(positionSerializeData);
rotationSerializeData = GCompressor.Decompress(rotationSerializeData);
scaleSerializeData = GCompressor.Decompress(scaleSerializeData);
int[] indices = new int[prototypeIndexSerializeData.Length / sizeof(int)];
float[] positions = new float[positionSerializeData.Length / sizeof(float)];
float[] rotations = new float[rotationSerializeData.Length / sizeof(float)];
float[] scales = new float[scaleSerializeData.Length / sizeof(float)];
Buffer.BlockCopy(prototypeIndexSerializeData, 0, indices, 0, prototypeIndexSerializeData.Length);
Buffer.BlockCopy(positionSerializeData, 0, positions, 0, positionSerializeData.Length);
Buffer.BlockCopy(rotationSerializeData, 0, rotations, 0, rotationSerializeData.Length);
Buffer.BlockCopy(scaleSerializeData, 0, scales, 0, scaleSerializeData.Length);
Instances.Clear();
for (int i = 0; i < indices.Length; ++i)
{
GGrassInstance grass = GGrassInstance.Create(indices[i]);
grass.Position = new Vector3(
positions[i * 3 + 0],
positions[i * 3 + 1],
positions[i * 3 + 2]);
grass.Rotation = new Quaternion(
rotations[i * 4 + 0],
rotations[i * 4 + 1],
rotations[i * 4 + 2],
rotations[i * 4 + 3]);
grass.Scale = new Vector3(
scales[i * 3 + 0],
scales[i * 3 + 1],
scales[i * 3 + 2]);
Instances.Add(grass);
}
}
}
internal void Serialize()
{
int[] protoIndices = new int[Instances.Count];
float[] positions = new float[Instances.Count * 3];
float[] rotations = new float[Instances.Count * 4];
float[] scales = new float[Instances.Count * 3];
for (int i = 0; i < Instances.Count; ++i)
{
GGrassInstance grass = Instances[i];
protoIndices[i] = grass.PrototypeIndex;
positions[i * 3 + 0] = grass.Position.x;
positions[i * 3 + 1] = grass.Position.y;
positions[i * 3 + 2] = grass.Position.z;
rotations[i * 4 + 0] = grass.Rotation.x;
rotations[i * 4 + 1] = grass.Rotation.y;
rotations[i * 4 + 2] = grass.Rotation.z;
rotations[i * 4 + 3] = grass.Rotation.w;
scales[i * 3 + 0] = grass.Scale.x;
scales[i * 3 + 1] = grass.Scale.y;
scales[i * 3 + 2] = grass.Scale.z;
}
prototypeIndexSerializeData = new byte[Buffer.ByteLength(protoIndices)];
Buffer.BlockCopy(protoIndices, 0, prototypeIndexSerializeData, 0, prototypeIndexSerializeData.Length);
prototypeIndexSerializeData = GCompressor.Compress(prototypeIndexSerializeData);
positionSerializeData = new byte[Buffer.ByteLength(positions)];
Buffer.BlockCopy(positions, 0, positionSerializeData, 0, positionSerializeData.Length);
positionSerializeData = GCompressor.Compress(positionSerializeData);
rotationSerializeData = new byte[Buffer.ByteLength(rotations)];
Buffer.BlockCopy(rotations, 0, rotationSerializeData, 0, rotationSerializeData.Length);
rotationSerializeData = GCompressor.Compress(rotationSerializeData);
scaleSerializeData = new byte[Buffer.ByteLength(scales)];
Buffer.BlockCopy(scales, 0, scaleSerializeData, 0, scaleSerializeData.Length);
scaleSerializeData = GCompressor.Compress(scaleSerializeData);
}
public void AddGrassInstances(List <GGrassInstance> instances)
{
Rect[] uvRects = new Rect[GrassPatches.Length];
for (int r = 0; r < uvRects.Length; ++r)
{
uvRects[r] = GrassPatches[r].GetUvRange();
}
for (int i = 0; i < instances.Count; ++i)
{
GGrassInstance grass = instances[i];
for (int r = 0; r < uvRects.Length; ++r)
{
if (uvRects[r].Contains(new Vector2(grass.Position.x, grass.Position.z)))
{
grassPatches[r].Instances.Add(grass);
break;
}
}
}
CalculateEstimatedGrassStorage();
}
private static void RenderPreviewGrass(GStylizedTerrain t, Camera cam)
{
if (t.TerrainData.Foliage.Grasses == null ||
t.TerrainData.Foliage.Grasses.Prototypes.Count == 0)
{
return;
}
List <GGrassPrototype> prototypes = t.TerrainData.Foliage.Grasses.Prototypes;
Vector3 dimension = new Vector3(
t.TerrainData.Geometry.Width,
t.TerrainData.Geometry.Height,
t.TerrainData.Geometry.Length);
Vector3 localPos = Vector3.zero;
Vector3 worldPos = Vector3.zero;
Vector3 scale = Vector3.zero;
Material mat = GGriffinSettings.Instance.TerrainDataDefault.Foliage.GrassPreviewMaterial;
Rect[] dirtyRects = t.TerrainData.Foliage.GetGrassDirtyRegions();
GGrassPatch[] patches = t.TerrainData.Foliage.GrassPatches;
bool[] dirtyFlags = new bool[patches.Length];
for (int p = 0; p < patches.Length; ++p)
{
dirtyFlags[p] = false;
Rect uvRange = patches[p].GetUvRange();
for (int r = 0; r < dirtyRects.Length; ++r)
{
if (uvRange.Overlaps(dirtyRects[r]))
{
dirtyFlags[p] = true;
break;
}
}
}
for (int pIndex = 0; pIndex < prototypes.Count; ++pIndex)
{
GGrassPrototype proto = prototypes[pIndex];
//mat.SetTexture(MAINTEX_PROPERTY, proto.Texture);
mat.SetPass(0);
for (int p = 0; p < patches.Length; ++p)
{
if (dirtyFlags[p] == false)
{
continue;
}
int instanceCount = patches[p].Instances.Count;
for (int j = 0; j < instanceCount; ++j)
{
GGrassInstance grass = patches[p].Instances[j];
if (grass.PrototypeIndex != pIndex)
{
continue;
}
localPos.Set(
dimension.x * grass.Position.x,
dimension.y * grass.Position.y,
dimension.z * grass.Position.z);
worldPos = t.transform.TransformPoint(localPos);
scale.Set(
prototypes[grass.PrototypeIndex].Size.x * grass.Scale.x,
prototypes[grass.PrototypeIndex].Size.y * grass.Scale.y,
prototypes[grass.PrototypeIndex].Size.z * grass.Scale.z);
Mesh mesh = prototypes[grass.PrototypeIndex].GetBaseMesh();
Graphics.DrawMeshNow(
mesh,
Matrix4x4.TRS(worldPos, grass.Rotation, scale));
}
}
}
}
private static void RenderGrass(GStylizedTerrain t, Camera cam)
{
if (t.TerrainData.Foliage.Grasses == null ||
t.TerrainData.Foliage.Grasses.Prototypes.Count == 0)
{
return;
}
List <GGrassPrototype> prototypes = t.TerrainData.Foliage.Grasses.Prototypes;
GGrassPatch[] patches = t.TerrainData.Foliage.GrassPatches;
if (patches == null)
{
return;
}
float grassDistance = t.TerrainData.Rendering.GrassDistance;
Vector3 dimension = new Vector3(
t.TerrainData.Geometry.Width,
t.TerrainData.Geometry.Height,
t.TerrainData.Geometry.Length);
float patchWorldRadius = dimension.x * 0.5f / t.TerrainData.Foliage.PatchGridSize;
Vector3 boundLocalPos = Vector3.zero;
Vector3 boundWorldPos = Vector3.zero;
int FLAG_CULLED = 0;
int FLAG_DIRTY = 1;
int FLAG_BATCHED = 2;
int[] flags = new int[patches.Length];
Rect[] dirtyRect = t.TerrainData.Foliage.GetGrassDirtyRegions();
for (int i = 0; i < patches.Length; ++i)
{
Rect uvRect = patches[i].GetUvRange();
boundLocalPos.Set(
uvRect.center.x * dimension.x,
0,
uvRect.center.y * dimension.z);
boundWorldPos = t.transform.TransformPoint(boundLocalPos);
boundWorldPos.y = cam.transform.position.y;
if (Vector3.Distance(boundWorldPos, cam.transform.position) - patchWorldRadius > grassDistance)
{
flags[i] = FLAG_CULLED;
continue;
}
for (int r = 0; r < dirtyRect.Length; ++r)
{
if (dirtyRect[r].Overlaps(uvRect))
{
flags[i] = FLAG_DIRTY;
break;
}
}
if (flags[i] == FLAG_DIRTY)
{
continue;
}
flags[i] = FLAG_BATCHED;
}
Vector3 meshLocalPos = Vector3.zero;
Vector3 meshWorldPos = Vector3.zero;
grassMaterialPropertyBlock.Clear();
if (t.TerrainData.Foliage.EnableInteractiveGrass)
{
grassMaterialPropertyBlock.SetTexture(VECTOR_FIELD_PROPERTY, t.GetGrassVectorFieldRenderTexture());
grassMaterialPropertyBlock.SetMatrix(WORLD_TO_NORMALIZED_PROPERTY, t.GetWorldToNormalizedMatrix());
}
grassMaterialPropertyBlock.SetTexture(NOISETEX_PROPERTY, GGriffinSettings.Instance.DefaultNoiseTexture);
IEnumerator <GWindZone> windZone = GWindZone.ActiveWindZones.GetEnumerator();
if (windZone.MoveNext())
{
GWindZone w = windZone.Current;
grassMaterialPropertyBlock.SetVector(WIND_PROPERTY, w.GetWindParams());
}
//draw batched
//Material grassMat = GCommon.CurrentRenderPipeline == GRenderPipelineType.Lightweight ?
// GGriffinSettings.Instance.TerrainDataDefault.Foliage.GrassMaterialLW :
// GGriffinSettings.Instance.TerrainDataDefault.Foliage.GrassMaterial;
Material grassMat = null;
if (GCommon.CurrentRenderPipeline == GRenderPipelineType.Builtin)
{
grassMat = t.TerrainData.Foliage.EnableInteractiveGrass ?
GGriffinSettings.Instance.TerrainDataDefault.Foliage.GrassInteractiveMaterial :
GGriffinSettings.Instance.TerrainDataDefault.Foliage.GrassMaterial;
if (grassMat == null)
{
Debug.Log("Grass material missing. Try re-installing the Polaris V2 package.");
}
}
else if (GCommon.CurrentRenderPipeline == GRenderPipelineType.Lightweight)
{
grassMat = t.TerrainData.Foliage.EnableInteractiveGrass ?
GGriffinSettings.Instance.TerrainDataDefault.Foliage.GrassInteractiveMaterialLWRP :
GGriffinSettings.Instance.TerrainDataDefault.Foliage.GrassMaterialLWRP;
if (grassMat == null)
{
Debug.Log("Grass material missing. Try installing the 'Lightweight Render Pipeline Support' extension from the Extension Window (Window>Griffin>Tools>Extension)");
}
}
else if (GCommon.CurrentRenderPipeline == GRenderPipelineType.Universal)
{
grassMat = t.TerrainData.Foliage.EnableInteractiveGrass ?
GGriffinSettings.Instance.TerrainDataDefault.Foliage.GrassInteractiveMaterialURP :
GGriffinSettings.Instance.TerrainDataDefault.Foliage.GrassMaterialURP;
if (grassMat == null)
{
Debug.Log("Grass material missing. Try installing the 'Universal Render Pipeline Support' extension from the Extension Window (Window>Griffin>Tools>Extension)");
}
}
if (grassMat == null)
{
return;
}
for (int i = 0; i < patches.Length; ++i)
{
if (flags[i] != FLAG_BATCHED)
{
continue;
}
for (int p = 0; p < prototypes.Count; ++p)
{
grassMaterialPropertyBlock.SetColor(COLOR_PROPERTY, prototypes[p].Color);
grassMaterialPropertyBlock.SetFloat(BEND_FACTOR_PROPERTY, prototypes[p].BendFactor);
if (prototypes[p].Shape != GGrassShape.DetailObject && prototypes[p].Texture != null)
{
grassMaterialPropertyBlock.SetTexture(MAINTEX_PROPERTY, prototypes[p].Texture);
}
Mesh mesh = patches[i].GetMesh(p);
if (mesh != null)
{
meshLocalPos = mesh.bounds.center;
meshWorldPos = t.transform.TransformPoint(meshLocalPos);
if (Vector3.Distance(meshWorldPos, cam.transform.position) - patchWorldRadius > grassDistance)
{
continue;
}
Graphics.DrawMesh(
mesh,
Matrix4x4.TRS(t.transform.position, Quaternion.identity, Vector3.one),
prototypes[p].Shape == GGrassShape.DetailObject ? prototypes[p].DetailMaterial : grassMat,
prototypes[p].Layer,
cam,
0,
prototypes[p].Shape == GGrassShape.DetailObject ? null : grassMaterialPropertyBlock,
prototypes[p].Shape == GGrassShape.DetailObject ? prototypes[p].ShadowCastingMode : ShadowCastingMode.On,
prototypes[p].Shape == GGrassShape.DetailObject ? prototypes[p].ReceiveShadow : true,
null,
LightProbeUsage.BlendProbes,
null);
}
}
}
if (GCommon.CurrentRenderPipeline == GRenderPipelineType.Builtin)
{
return;
}
Vector3 localPos = Vector3.zero;
Vector3 worldPos = Vector3.zero;
Vector3 scale = Vector3.zero;
Material previewMat = GGriffinSettings.Instance.TerrainDataDefault.Foliage.GrassPreviewMaterial;
for (int pIndex = 0; pIndex < prototypes.Count; ++pIndex)
{
GGrassPrototype proto = prototypes[pIndex];
//grassMaterialPropertyBlock.Clear();
//grassMaterialPropertyBlock.SetTexture(MAINTEX_PROPERTY, proto.Texture);
for (int i = 0; i < patches.Length; ++i)
{
if (flags[i] != FLAG_DIRTY)
{
continue;
}
GGrassPatch patch = patches[i];
int instanceCount = patch.Instances.Count;
for (int j = 0; j < instanceCount; ++j)
{
GGrassInstance grass = patch.Instances[j];
if (grass.PrototypeIndex != pIndex)
{
continue;
}
localPos.Set(
dimension.x * grass.Position.x,
dimension.y * grass.Position.y,
dimension.z * grass.Position.z);
worldPos = t.transform.TransformPoint(localPos);
scale.Set(
prototypes[grass.PrototypeIndex].Size.x * grass.Scale.x,
prototypes[grass.PrototypeIndex].Size.y * grass.Scale.y,
prototypes[grass.PrototypeIndex].Size.z * grass.Scale.z);
Mesh mesh = prototypes[grass.PrototypeIndex].GetBaseMesh();
Graphics.DrawMesh(
mesh,
Matrix4x4.TRS(worldPos, grass.Rotation, scale),
previewMat,
prototypes[grass.PrototypeIndex].Layer,
cam,
0,
null, //grassMaterialPropertyBlock
ShadowCastingMode.On,
true,
null,
LightProbeUsage.BlendProbes,
null);
}
}
}
}
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);
}
});
}
private void StripInstances(int prototypeIndex)
{
if (Foliage.Grasses == null)
{
return;
}
int count = 0;
for (int i = 0; i < Instances.Count; ++i)
{
if (Instances[i].PrototypeIndex == prototypeIndex)
{
count += 1;
}
}
if (count == 0)
{
return;
}
Mesh baseMesh = Foliage.Grasses.Prototypes[prototypeIndex].GetBaseMesh();
if (baseMesh == null)
{
return;
}
int baseVertexCount = baseMesh.vertexCount;
int vertexCount = baseVertexCount * count;
if (vertexCount < 65000)
{
return;
}
int toRemoveCount = 1 + (vertexCount - 65000) / baseVertexCount;
List <int> indices = new List <int>();
for (int i = 0; i < Instances.Count; ++i)
{
if (Instances[i].PrototypeIndex == prototypeIndex)
{
indices.Add(i);
}
}
GUtilities.ShuffleList(indices);
for (int i = 0; i < toRemoveCount; ++i)
{
GGrassInstance instance = Instances[indices[i]];
instance.PrototypeIndex = -1;
Instances[indices[i]] = instance;
}
int removedCount = Instances.RemoveAll(g => g.PrototypeIndex < 0);
Debug.Log(string.Format(
"Stripped {0} instance{1} at patch {2}, prototype {3}.",
removedCount,
removedCount > 1 ? "s" : "",
Index.ToString("0"),
prototypeIndex));
}