private Cluster.ClusteredMesh GetClusteredMesh(CRenderContext rc, RName clusterName, out uint indexOffset)
{
KeyValuePair <uint, Cluster.ClusteredMesh> result;
if (mClusteredMeshs.TryGetValue(clusterName, out result))
{
indexOffset = result.Key;
return(result.Value);
}
else
{
uint vertexOffset = (uint)mAllVertices.Count;
Cluster.ClusteredMesh clusterMesh = CEngine.Instance.ClusteredMeshManager.GetResource(rc, clusterName, true);
mAllVertices.AddRange(clusterMesh.MeshVertices);
indexOffset = (uint)mAllIndices.Count;
for (int i = 0; i < clusterMesh.IndexBuffer.Count; i++)
{
uint index = vertexOffset + clusterMesh.IndexBuffer[i];
mAllIndices.Add(index);
}
result = new KeyValuePair <uint, Cluster.ClusteredMesh>(indexOffset, clusterMesh);
mClusteredMeshs.Add(clusterName, result);
return(result.Value);
}
}
public void AddMeshInstance(CRenderContext rc, Graphics.Mesh.CGfxMesh mesh, RName clusterName, GamePlay.Component.GPlacementComponent placement)
{
var worldMatrix = placement.WorldMatrix;
uint instStart = (uint)mGpuInstanceDatas.Count;
for (int i = 0; i < mesh.MtlMeshArray.Length; i++)
{
var data = new GpuMeshInstanceData();
data.VTMaterialId.x = 1;//(uint)GetOrAddMaterialId(mesh.MtlMeshArray[i].MtlInst);
data.Matrix = worldMatrix;
Matrix.Invert(ref data.Matrix, out data.InvMatrix);
data.Matrix.Transpose();
data.InvMatrix.Transpose();
mGpuInstanceDatas.Add(data);
//var module = CEngine.Instance.GetCurrentModule();
//module.World.AddActor();
}
uint indexOffset;
Cluster.ClusteredMesh cluster = GetClusteredMesh(rc, clusterName, out indexOffset);
for (int i = 0; i < cluster.ClusterDatas.Count; i++)
{
Cluster.GpuCluster gpuCluster = cluster.ClusterDatas[i];
gpuCluster.InstanceId += instStart;
gpuCluster.StartFaceIndex += indexOffset / 3;
BoundingBox tmpBox = new BoundingBox(gpuCluster.BoundCenter - gpuCluster.BoundExtent, gpuCluster.BoundCenter + gpuCluster.BoundExtent);
tmpBox = BoundingBox.Transform(ref tmpBox, ref worldMatrix);
gpuCluster.BoundCenter = tmpBox.GetCenter();
gpuCluster.BoundExtent = tmpBox.GetSize() * 0.5f;
mGpuClusters.Add(gpuCluster);
}
}
