public override void AbcSampleUpdated(AbcAPI.aiSample sample, bool topologyChanged)
{
AlembicMaterial abcMaterials = m_trans.GetComponent <AlembicMaterial>();
if (abcMaterials != null)
{
if (abcMaterials.HasFacesetsChanged())
{
AbcVerboseLog("AlembicMesh.AbcSampleUpdated: Facesets updated, force topology update");
topologyChanged = true;
}
hasFacesets = (abcMaterials.GetFacesetsCount() > 0);
}
else if (hasFacesets)
{
AbcVerboseLog("AlembicMesh.AbcSampleUpdated: Facesets cleared, force topology update");
topologyChanged = true;
hasFacesets = false;
}
if (m_freshSetup)
{
topologyChanged = true;
m_freshSetup = false;
}
AbcAPI.aiPolyMeshGetSampleSummary(sample, ref m_sampleSummary, topologyChanged);
AbcAPI.aiPolyMeshData vertexData = default(AbcAPI.aiPolyMeshData);
UpdateSplits(m_sampleSummary.splitCount);
for (int s = 0; s < m_sampleSummary.splitCount; ++s)
{
Split split = m_splits[s];
split.clear = topologyChanged;
split.active = true;
int vertexCount = AbcAPI.aiPolyMeshGetVertexBufferLength(sample, s);
Array.Resize(ref split.positionCache, vertexCount);
vertexData.positions = GetArrayPtr(split.positionCache);
if (m_sampleSummary.hasNormals)
{
Array.Resize(ref split.normalCache, vertexCount);
vertexData.normals = GetArrayPtr(split.normalCache);
}
else
{
Array.Resize(ref split.normalCache, 0);
vertexData.normals = IntPtr.Zero;
}
if (m_sampleSummary.hasUVs)
{
Array.Resize(ref split.uvCache, vertexCount);
vertexData.uvs = GetArrayPtr(split.uvCache);
}
else
{
Array.Resize(ref split.uvCache, 0);
vertexData.uvs = IntPtr.Zero;
}
if (m_sampleSummary.hasTangents)
{
Array.Resize(ref split.tangentCache, vertexCount);
vertexData.tangents = GetArrayPtr(split.tangentCache);
}
else
{
Array.Resize(ref split.tangentCache, 0);
vertexData.tangents = IntPtr.Zero;
}
AbcAPI.aiPolyMeshFillVertexBuffer(sample, s, ref vertexData);
split.center = vertexData.center;
split.size = vertexData.size;
}
if (topologyChanged)
{
AbcAPI.aiFacesets facesets = default(AbcAPI.aiFacesets);
AbcAPI.aiSubmeshSummary submeshSummary = default(AbcAPI.aiSubmeshSummary);
AbcAPI.aiSubmeshData submeshData = default(AbcAPI.aiSubmeshData);
if (abcMaterials != null)
{
abcMaterials.GetFacesets(ref facesets);
}
int numSubmeshes = AbcAPI.aiPolyMeshPrepareSubmeshes(sample, ref facesets);
if (m_submeshes.Count > numSubmeshes)
{
m_submeshes.RemoveRange(numSubmeshes, m_submeshes.Count - numSubmeshes);
}
for (int s = 0; s < m_sampleSummary.splitCount; ++s)
{
m_splits[s].submeshCount = AbcAPI.aiPolyMeshGetSplitSubmeshCount(sample, s);
}
while (AbcAPI.aiPolyMeshGetNextSubmesh(sample, ref submeshSummary))
{
if (submeshSummary.splitIndex >= m_splits.Count)
{
Debug.Log("Invalid split index");
continue;
}
Submesh submesh = null;
if (submeshSummary.index < m_submeshes.Count)
{
submesh = m_submeshes[submeshSummary.index];
}
else
{
submesh = new Submesh
{
indexCache = new int[0],
facesetIndex = -1,
splitIndex = -1,
index = -1,
update = true
};
m_submeshes.Add(submesh);
}
submesh.facesetIndex = submeshSummary.facesetIndex;
submesh.splitIndex = submeshSummary.splitIndex;
submesh.index = submeshSummary.splitSubmeshIndex;
submesh.update = true;
Array.Resize(ref submesh.indexCache, 3 * submeshSummary.triangleCount);
submeshData.indices = GetArrayPtr(submesh.indexCache);
AbcAPI.aiPolyMeshFillSubmeshIndices(sample, ref submeshSummary, ref submeshData);
}
if (abcMaterials != null)
{
abcMaterials.AknowledgeFacesetsChanges();
}
}
else
{
for (int i = 0; i < m_submeshes.Count; ++i)
{
m_submeshes[i].update = false;
}
}
AbcDirty();
}
public void GetFacesets(ref AbcAPI.aiFacesets facesets)
{
facesets.count = facesetsCache.faceCounts.Length;
facesets.faceCounts = Marshal.UnsafeAddrOfPinnedArrayElement(facesetsCache.faceCounts, 0);
facesets.faceIndices = Marshal.UnsafeAddrOfPinnedArrayElement(facesetsCache.faceIndices, 0);
}