public IndexBuffer GetIndexBuffer(MeshData mesh, out int indexCount)
{
IndexBufferAndCount bufferAndCount = GetIndexBufferAndCount(mesh);
indexCount = bufferAndCount.IndexCount;
return(bufferAndCount.Buffer);
}
public IndexBufferAndCount GetIndexBufferAndCount(MeshData mesh)
{
int indexCount;
IndexBufferAndCount bufferAndCount;
BufferKey key = new BufferKey(mesh);
if (!_ibs.TryGetValue(key, out bufferAndCount))
{
var indexBuffer = mesh.CreateIndexBuffer(_factory, out indexCount);
bufferAndCount = new IndexBufferAndCount(indexBuffer, indexCount);
if (!_ibs.TryAdd(key, bufferAndCount))
{
indexBuffer.Dispose();
return(_ibs[key]);
}
}
else
{
indexCount = bufferAndCount.IndexCount;
}
return(bufferAndCount);
}
