//-----------------------------//
//- Class methods implement. -//
//-----------------------------//
public void Initialize()
{
//Initialize already called successfully
if (_isInitialized == true)
{
return;
}
if (_dataSource == null)
{
int key = 0;
//if (_sourceType == SOURCE_TYPE.Network)
//{
// key = Bridge4DS.CreateConnection(_connexionHost, _connexionPort);
//}
//Creates data source from the given path
_dataSource = DataSource4DS.CreateDataSource(key, _sequenceName, _dataInStreamingAssets, _mainDataPath, (int)_activeRangeMin, (int)_activeRangeMax, _outRangeMode);
if (_dataSource == null)
{
OnModelNotFound?.Invoke();
return;
}
}
_lastModelId = -1;
_meshComponent = GetComponent <MeshFilter>();
_rendererComponent = GetComponent <Renderer>();
_meshCollider = GetComponent <MeshCollider>();
_nbFrames = Bridge4DS.GetSequenceNbFrames(_dataSource.FDVUUID);
Bridge4DS.SetSpeed(_dataSource.FDVUUID, _speedRatio);
if (_sourceType == SOURCE_TYPE.Network)
{
Bridge4DS.SetHTTPDownloadSize(_dataSource.FDVUUID, _HTTPDownloadSize);
Bridge4DS.SetHTTPKeepInCache(_dataSource.FDVUUID, _HTTPKeepInCache);
}
Bridge4DS.SetChunkBufferMaxSize(_dataSource.FDVUUID, _chunkBufferMaxSize);
Bridge4DS.SetMeshBufferMaxSize(_dataSource.FDVUUID, _meshBufferMaxSize);
//Allocates geometry buffers
AllocateGeometryBuffers(ref _newVertices, ref _newUVs, ref _newNormals, ref _newTriangles, _dataSource.MaxVertices, _dataSource.MaxTriangles);
//Allocates texture pixel buffer
int pixelBufferSize = _dataSource.TextureSize * _dataSource.TextureSize / 2; //default is 4 bpp
if (_dataSource.TextureFormat == TextureFormat.PVRTC_RGB2) //pvrtc2 is 2bpp
{
pixelBufferSize /= 2;
}
if (_dataSource.TextureFormat == TextureFormat.ASTC_RGBA_8x8)
{
int blockSize = 8;
int xblocks = (_dataSource.TextureSize + blockSize - 1) / blockSize;
pixelBufferSize = xblocks * xblocks * 16;
}
_newTextureData = new byte[pixelBufferSize];
//Gets pinned memory handle
_newVerticesHandle = GCHandle.Alloc(_newVertices, GCHandleType.Pinned);
_newUVsHandle = GCHandle.Alloc(_newUVs, GCHandleType.Pinned);
_newTrianglesHandle = GCHandle.Alloc(_newTriangles, GCHandleType.Pinned);
_newTextureDataHandle = GCHandle.Alloc(_newTextureData, GCHandleType.Pinned);
_newNormalsHandle = GCHandle.Alloc(_newNormals, GCHandleType.Pinned);
//Allocates objects buffers for double buffering
_meshes = new Mesh[_nbGeometryBuffers];
_textures = new Texture2D[_nbTextureBuffers];
for (int i = 0; i < _nbGeometryBuffers; i++)
{
//Mesh
Mesh mesh = new Mesh();
if (_dataSource.MaxVertices > MAX_SHORT)
{
mesh.indexFormat = UnityEngine.Rendering.IndexFormat.UInt32;
}
mesh.MarkDynamic(); //Optimize mesh for frequent updates. Call this before assigning vertices.
mesh.vertices = _newVertices;
mesh.uv = _newUVs;
mesh.triangles = _newTriangles;
mesh.normals = _newNormals;
Bounds newBounds = mesh.bounds;
newBounds.extents = new Vector3(4, 4, 4);
mesh.bounds = newBounds;
_meshes[i] = mesh;
}
for (int i = 0; i < _nbTextureBuffers; i++)
{
//Texture
#if UNITY_2019_1_OR_NEWER
if (_dataSource.TextureFormat == TextureFormat.ASTC_RGBA_8x8) //since unity 2019 ASTC RGBA is no more supported
{
_dataSource.TextureFormat = TextureFormat.ASTC_8x8;
}
#endif
Texture2D texture = new Texture2D(_dataSource.TextureSize, _dataSource.TextureSize, _dataSource.TextureFormat, false)
{
wrapMode = TextureWrapMode.Clamp,
filterMode = FilterMode.Bilinear
};
texture.Apply(); //upload to GPU
_textures[i] = texture;
}
_currentGeometryBuffer = _currentTextureBuffer = 0;
_nbFrames = Bridge4DS.GetSequenceNbFrames(_dataSource.FDVUUID);
_isInitialized = true;
}