private void Submit(int cellIndex)
{
GGrassPatchData data = cellsData[cellIndex];
if (data == null)
{
return;
}
GInstancedBatch[] batches = data.instancedBatches;
if (batches == null)
{
return;
}
for (int i = 0; i < batches.Length; ++i)
{
GInstancedBatch b = batches[i];
if (b.prototypeIndex >= prototypes.Count)
{
continue;
}
GGrassPrototype proto = prototypes[b.prototypeIndex];
MaterialPropertyBlock propertyBlock = propertyBlocks[b.prototypeIndex];
Mesh baseMesh = baseMeshes[b.prototypeIndex];
if (baseMesh == null)
{
continue;
}
Material material = materials[b.prototypeIndex];
if (material == null || !material.enableInstancing)
{
continue;
}
Graphics.DrawMeshInstanced(
baseMesh,
0,
material,
b.transforms,
b.instanceCount,
propertyBlock,
proto.shadowCastingMode,
proto.receiveShadow,
proto.layer,
camera,
LightProbeUsage.BlendProbes);
}
}
private void InitFrame(Camera cam)
{
terrainPosition = terrain.transform.position;
terrainSize = terrain.TerrainData.Geometry.Size;
grassDistance = terrain.TerrainData.Rendering.GrassDistance;
cells = terrain.TerrainData.Foliage.GrassPatches;
willIgnoreCellLimit =
cellsData == null ||
GRuntimeSettings.Instance.isEditingFoliage;
if (cellsData == null || cellsData.Length != cells.Length)
{
cellsData = new GGrassPatchData[cells.Length];
}
for (int i = 0; i < cellsData.Length; ++i)
{
if (cellsData[i] == null)
{
cellsData[i] = new GGrassPatchData();
}
}
if (cellsNativeData == null || cellsNativeData.Length != cells.Length)
{
cellsNativeData = new GGrassPatchNativeData[cells.Length];
}
if (visibleCells == null)
{
visibleCells = new List <int>();
}
if (cellToProcess == null)
{
cellToProcess = new List <int>();
}
if (terrain.TerrainData.Foliage.Grasses != null)
{
prototypes = terrain.TerrainData.Foliage.Grasses.Prototypes;
if (propertyBlocks == null || propertyBlocks.Length != prototypes.Count)
{
propertyBlocks = new MaterialPropertyBlock[prototypes.Count];
}
}
else
{
prototypes = new List <GGrassPrototype>();
}
if (materialConfigurator == null)
{
materialConfigurator = System.Activator.CreateInstance <GSimpleGrassMaterialConfigurator>();
}
normalizedToLocalMatrix = Matrix4x4.Scale(terrainSize);
localToWorldMatrix = terrain.transform.localToWorldMatrix;
normalizedToWorldMatrix = localToWorldMatrix * normalizedToLocalMatrix;
camera = cam;
if (frustum == null)
{
frustum = new Plane[6];
}
GFrustumUtilities.Calculate(camera, frustum, grassDistance);
if (cellCullResults == null || cellCullResults.Length != cells.Length)
{
cellCullResults = new int[cells.Length];
}
if (cellCulledFrameCount == null || cellCulledFrameCount.Length != cells.Length)
{
cellCulledFrameCount = new int[cells.Length];
}
if (cellSqrDistanceToCam == null || cellSqrDistanceToCam.Length != cells.Length)
{
cellSqrDistanceToCam = new float[cells.Length];
}
if (cellWorldBounds == null || cellWorldBounds.Length != cells.Length)
{
cellWorldBounds = new Bounds[cells.Length];
for (int i = 0; i < cells.Length; ++i)
{
cellWorldBounds[i] = new Bounds()
{
center = normalizedToWorldMatrix.MultiplyPoint(cells[i].bounds.center),
size = normalizedToWorldMatrix.MultiplyVector(cells[i].bounds.size)
};
}
}
GUtilities.EnsureArrayLength(ref baseMeshes, prototypes.Count);
GUtilities.EnsureArrayLength(ref materials, prototypes.Count);
for (int i = 0; i < prototypes.Count; ++i)
{
baseMeshes[i] = prototypes[i].GetBaseMesh();
materials[i] =
prototypes[i].Shape == GGrassShape.DetailObject ?
prototypes[i].DetailMaterial :
GGrassMaterialProvider.GetMaterial(terrain.TerrainData.Foliage.EnableInteractiveGrass, prototypes[i].IsBillboard);
}
}