private void CreateInstancedBatches(int cellIndex)
{
GGrassPatchNativeData nativeData = cellsNativeData[cellIndex];
NativeArray <Matrix4x4> trs = nativeData.trs;
NativeArray <Vector3Int> metadata = nativeData.metadata;
GInstancedBatch[] batches = new GInstancedBatch[metadata[0].z];
for (int i = 0; i < batches.Length; ++i)
{
int prototypeIndex = metadata[i + 1].x;
int startIndex = metadata[i + 1].y;
int length = metadata[i + 1].z;
int indexLimit = startIndex + length;
GInstancedBatch batch = new GInstancedBatch(BATCH_MAX_INSTANCE_COUNT);
batch.prototypeIndex = prototypeIndex;
for (int j = startIndex; j < indexLimit; ++j)
{
batch.AddTransform(trs[j]);
}
batches[i] = batch;
}
cellsData[cellIndex].instancedBatches = batches;
}
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);
}
}