public void Execute(int index)
{
var bv = batches[index];
var visibleInstanceIndex = 0;
var isOrtho = lodParams.isOrtho;
var distanceScale = lodParams.distanceScale;
for (int i = 0; i < bv.instancesCount; i++)
{
var cullData = cullDatas[index * 50 + i];
var rootLodDistance =
math.select(distanceScale * math.length(lodParams.cameraPos - cullData.position), distanceScale,
isOrtho);
var rootLodIntersect = (rootLodDistance < cullData.maxDistance) &&
(rootLodDistance >= cullData.minDistance);
if (rootLodIntersect)
{
var chunkIn = OtherUtils.Intersect2NoPartial(planes, cullData.bound);
if (chunkIn != OtherUtils.IntersectResult.Out)
{
//设置batch的index
indexList[bv.offset + visibleInstanceIndex] = i;
visibleInstanceIndex++;
}
}
}
//设置batch的visibleCount
bv.visibleCount = visibleInstanceIndex;
batches[index] = bv;
}
private JobHandle MyOnPerformCulling(BatchRendererGroup renderergroup, BatchCullingContext cullingContext)
{
var planes = OtherUtils.BuildSOAPlanePackets(cullingContext.cullingPlanes, Allocator.TempJob);
var lodParams = OtherUtils.CalculateLODParams(cullingContext.lodParameters);
//传入visibleIndices和batchVisibility 在job里面修改
var cull = new MyCullJob()
{
planes = planes,
lodParams = lodParams,
indexList = cullingContext.visibleIndices,
batches = cullingContext.batchVisibility,
cullDatas = cullData,
};
//50组lod0 + 50组lod1 = 100
// cullingDependency 形成队列关系
var handle = cull.Schedule(100, 32, cullingDependency);
cullingDependency = JobHandle.CombineDependencies(handle, cullingDependency);
return(handle);
}
private void AddBatch(int offset, int count, float3[] pos, quaternion[] rot, float3[] scale)
{
var localBound = mesh.bounds;
var block = new MaterialPropertyBlock();
var colors = new List <Vector4>(count);
for (int i = 0; i < count; i++)
{
colors.Add(new Vector4(Random.value, Random.value, Random.value, Random.value));
}
// 因为srp batcher buffer的关系 instance buffer 会混乱
// block.SetVectorArray(BaseColor_ID, colors);
//下面的Bounds是需要组合过的
var batchIndex = batchRendererGroup.AddBatch(
mesh,
0,
material,
0,
ShadowCastingMode.On,
true,
false,
new Bounds(Vector3.zero, 1000 * Vector3.one),
count,
block,
null
);
var matrices = batchRendererGroup.GetBatchMatrices(batchIndex);
for (int i = 0; i < count; i++)
{
float4x4 tempMatrix = float4x4.TRS(pos[i], rot[i], scale[i]);
Bounds aabb = OtherUtils.Transform(tempMatrix, localBound);
tempMatrix.c0.w = colors[i].x;
tempMatrix.c1.w = colors[i].y;
tempMatrix.c2.w = colors[i].z;
tempMatrix.c3.w = colors[i].w;
matrices[i] = tempMatrix;
cullData[offset + i] = new CullData()
{
bound = aabb,
position = pos[i],
minDistance = 0,
maxDistance = lodDis
};
}
//-----------------
for (int i = 0; i < count; i++)
{
colors[i] = (new Vector4(Random.value, Random.value, Random.value, Random.value));
}
// 因为srp batcher buffer的关系 instance buffer 会混乱
// block.SetVectorArray(BaseColor_ID, colors);
//https://docs.unity3d.com/ScriptReference/Rendering.BatchRendererGroup.AddBatch.html
//下面的Bounds是需要组合过的
batchIndex = batchRendererGroup.AddBatch(
lowMesh,
0,
material,
0,
ShadowCastingMode.On,
true,
false,
new Bounds(Vector3.zero, 1000 * Vector3.one),
count,
block,
null
);
matrices = batchRendererGroup.GetBatchMatrices(batchIndex);
for (int i = 0; i < count; i++)
{
var tempMatrix = float4x4.TRS(pos[i], rot[i], scale[i]);
Bounds aabb = OtherUtils.Transform(tempMatrix, localBound);
tempMatrix.c0.w = colors[i].x;
tempMatrix.c1.w = colors[i].y;
tempMatrix.c2.w = colors[i].z;
tempMatrix.c3.w = colors[i].w;
matrices[i] = tempMatrix;
cullData[offset + count + i] = new CullData()
{
bound = aabb,
position = pos[i],
minDistance = lodDis,
maxDistance = 10000,
};
}
}
