/// <summary>
/// See LoadMeshDataFromDiskAsync.
/// </summary>
private static IEnumerator LoadMeshDataFromDisk(string avatarId, AsyncRequest <MeshData> request)
{
var meshBytesRequest = LoadAvatarFileAsync(avatarId, AvatarFile.MESH_PLY);
yield return(request.AwaitSubrequest(meshBytesRequest, finalProgress: 0.5f));
if (request.IsError)
{
yield break;
}
var parsePlyTimer = new MeasureTime("Parse ply");
var parsePlyRequest = PlyToMeshDataAsync(meshBytesRequest.Result);
yield return(request.AwaitSubrequest(parsePlyRequest, finalProgress: 1));
if (request.IsError)
{
yield break;
}
parsePlyTimer.Stop();
request.Result = parsePlyRequest.Result;
request.IsDone = true;
}
/// <summary>
/// LoadAvatarHeadFromDiskAsync implementation.
/// </summary>
private static IEnumerator LoadAvatarHeadFromDisk(
string avatarId,
bool withBlendshapes,
int detailsLevel,
AsyncRequest <TexturedMesh> request
)
{
// loading two files simultaneously
var meshDataRequest = LoadDetailedMeshDataFromDiskAsync(avatarId, detailsLevel);
var textureBytesRequest = LoadAvatarFileAsync(avatarId, AvatarFile.TEXTURE);
yield return(request.AwaitSubrequests(0.6f, meshDataRequest, textureBytesRequest));
if (request.IsError)
{
yield break;
}
MeshData meshData = meshDataRequest.Result;
var parseTextureTimer = new MeasureTime("Parse texture data");
// at this point we have all data we need to generate a textured mesh
var texturedMesh = new TexturedMesh {
mesh = CreateMeshFromMeshData(meshData, "HeadMesh"),
texture = new Texture2D(0, 0)
};
// This actually blocks the main thread for a few frames, which is bad for VR.
// To optimize: load jpg/png texture in C++ code in a separate thread and only SetPixels here in Unity. Should be faster.
texturedMesh.texture.LoadImage(textureBytesRequest.Result);
parseTextureTimer.Stop();
if (withBlendshapes)
{
// adding blendshapes...
using (new MeasureTime("Add blendshapes")) {
var addBlendshapesRequest = AddBlendshapesAsync(avatarId, texturedMesh.mesh, meshData.indexMap);
yield return(request.AwaitSubrequest(addBlendshapesRequest, 1.0f));
if (addBlendshapesRequest.IsError)
{
Debug.LogError("Could not add blendshapes!");
}
}
}
request.Result = texturedMesh;
request.IsDone = true;
}
/// <summary>
/// Read blendshapes from the avatar directory and add them to 3D head mesh.
/// </summary>
private static IEnumerator AddBlendshapes(string avatarId, Mesh mesh, int[] indexMap, AsyncRequest <Mesh> request)
{
var blendshapesDirs = AvatarSdkMgr.Storage().GetAvatarBlendshapesDirs(avatarId);
var loadBlendshapesRequest = new AsyncRequestThreaded <Dictionary <string, Vector3[]> > ((r) => {
var timer = new MeasureTime("Read all blendshapes");
var blendshapes = new Dictionary <string, Vector3[]> ();
List <string> blendshapeFiles = new List <string>();
foreach (string dir in blendshapesDirs)
{
blendshapeFiles.AddRange(Directory.GetFiles(dir));
}
var blendshapeReader = new BlendshapeReader(indexMap);
for (int i = 0; i < blendshapeFiles.Count; ++i)
{
var blendshapePath = blendshapeFiles [i];
var filename = Path.GetFileName(blendshapePath);
// crude parsing of filenames
if (!filename.EndsWith(".bin"))
{
continue;
}
var tokens = filename.Split(new [] { ".bin" }, StringSplitOptions.None);
if (tokens.Length != 2)
{
continue;
}
var blendshapeName = tokens [0];
blendshapes [blendshapeName] = blendshapeReader.ReadVerticesDeltas(blendshapePath);
r.Progress = (float)i / blendshapeFiles.Count;
}
timer.Stop();
return(blendshapes);
}, AvatarSdkMgr.Str(Strings.ParsingBlendshapes));
yield return(request.AwaitSubrequest(loadBlendshapesRequest, finalProgress: 0.9f));
if (request.IsError)
{
yield break;
}
var addBlendshapesTimer = DateTime.Now;
float targetFps = 30.0f;
int numBlendshapes = 0, loadedSinceLastPause = 0;
var blendshapesDict = loadBlendshapesRequest.Result;
foreach (var blendshape in blendshapesDict)
{
mesh.AddBlendShapeFrame(blendshape.Key, 100.0f, blendshape.Value, null, null);
++numBlendshapes;
++loadedSinceLastPause;
if ((DateTime.Now - addBlendshapesTimer).TotalMilliseconds > 1000.0f / targetFps && loadedSinceLastPause >= 5)
{
// Debug.LogFormat ("Pause after {0} blendshapes to avoid blocking the main thread", numBlendshapes);
yield return(null);
addBlendshapesTimer = DateTime.Now;
loadedSinceLastPause = 0;
}
}
request.Result = mesh;
request.IsDone = true;
}