/// <summary>
/// Populates the TextureSet with all the textures required for the scene.
/// </summary>
private void LoadTextures()
{
var materials = _raw.Materials;
foreach (var mat in materials)
{
var textures = mat.GetAllMaterialTextures();
foreach (var tex in textures)
{
var path = tex.FilePath;
EmbeddedTexture embeddedSource = null;
if (path.StartsWith("*"))
{
// Embedded texture, following the asterisk is the zero-based
// index of the data source in Assimp.Scene.Textures
uint index;
if (Raw.HasTextures && uint.TryParse(path.Substring(1), out index) && index < Raw.TextureCount)
{
embeddedSource = Raw.Textures[(int)index];
}
// else: just add the name to the texture set without specifying
// a data source, the texture will then be in a failed state
// but users can still replace it manually.
}
TextureSet.Add(tex.FilePath, embeddedSource);
}
}
TextureSet.AddCallback((name, tex) =>
{
SetTexturesChangedFlag();
return(true);
});
}
/// <summary>
/// Requests that texture filters be re-configured as soon as possible.
/// This is called when the texture settings are changed.
///
/// This method may only be called from the UI thread.
/// </summary>
public void RequestReconfigureTextures()
{
SetTexturesChangedFlag();
foreach (var tex in TextureSet.GetLoadedTexturesCollectionThreadsafe())
{
if (tex.State == Texture.TextureState.GlTextureCreated)
{
tex.ReconfigureUploadedTextureRequested = true;
}
}
}
/// <summary>
/// Requests that all textures be re-uploaded as soon as possible.
/// This is called when the texture settings are changed.
///
/// This method may only be called from the UI thread.
/// </summary>
public void RequestReuploadTextures()
{
SetTexturesChangedFlag();
foreach (var tex in TextureSet.GetLoadedTexturesCollectionThreadsafe())
{
if (tex.State == Texture.TextureState.GlTextureCreated)
{
tex.ReleaseUpload();
// tex.Upload();//??????????
}
}
}
/// <summary>
/// Construct a scene given a file name, throw if loading fails
/// </summary>
/// <param name="file">File name to be loaded</param>
public Scene(string file)
{
_file = file;
_baseDir = Path.GetDirectoryName(file);
_logStore = new LogStore();
var stopwatch = new Stopwatch();
stopwatch.Start();
try
{
using (var imp = new AssimpContext())
{
LogStream.IsVerboseLoggingEnabled = true;
using (var pipe = new LogPipe(_logStore))
{
// Assimp configuration:
// - if no normals are present, generate them using a threshold
// angle of 66 degrees.
imp.SetConfig(new NormalSmoothingAngleConfig(66.0f));
// start with TargetRealTimeMaximumQuality and add/remove flags
// according to the import configuration
var postprocess = GetPostProcessStepsFlags();
// - request lots of post processing steps, the details of which
// can be found in the TargetRealTimeMaximumQuality docs.
_raw = imp.ImportFile(file, postprocess);
if (_raw == null)
{
Dispose();
throw new Exception("failed to read file: " + file);
}
_incomplete = _raw.SceneFlags.HasFlag(SceneFlags.Incomplete);
}
}
}
catch (AssimpException ex)
{
Dispose();
throw new Exception("failed to read file: " + file + " (" + ex.Message + ")");
}
stopwatch.Stop();
_loadingTime = stopwatch.ElapsedMilliseconds;
_animator = new SceneAnimator(this);
_textureSet = new TextureSet(BaseDir);
LoadTextures();
// compute a bounding box (AABB) for the scene we just loaded
ComputeBoundingBox(out _sceneMin, out _sceneMax, out _sceneCenter);
_pivot = _sceneCenter;
CountVertsAndFaces(out _totalVertexCount, out _totalTriangleCount, out _totalLineCount, out _totalPointCount);
CreateRenderingBackend();
}
/// <summary>
/// Construct a scene given a file name, throw if loading fails
/// </summary>
/// <param name="file">File name to be loaded</param>
public Scene(string file)
{
_file = file;
_baseDir = Path.GetDirectoryName(file);
_logStore = new LogStore();
var stopwatch = new Stopwatch();
stopwatch.Start();
try
{
using (var imp = new AssimpContext())
{
LogStream.IsVerboseLoggingEnabled = true;
using(var pipe = new LogPipe(_logStore))
{
// Assimp configuration:
// - if no normals are present, generate them using a threshold
// angle of 66 degrees.
imp.SetConfig(new NormalSmoothingAngleConfig(66.0f));
// start with TargetRealTimeMaximumQuality and add/remove flags
// according to the import configuration
var postprocess = GetPostProcessStepsFlags();
// - request lots of post processing steps, the details of which
// can be found in the TargetRealTimeMaximumQuality docs.
_raw = imp.ImportFile(file, postprocess);
if (_raw == null)
{
Dispose();
throw new Exception("failed to read file: " + file);
}
_incomplete = _raw.SceneFlags.HasFlag(SceneFlags.Incomplete);
}
}
}
catch(AssimpException ex)
{
Dispose();
throw new Exception("failed to read file: " + file + " (" + ex.Message + ")");
}
stopwatch.Stop();
_loadingTime = stopwatch.ElapsedMilliseconds;
_animator = new SceneAnimator(this);
_textureSet = new TextureSet(BaseDir);
LoadTextures();
// compute a bounding box (AABB) for the scene we just loaded
ComputeBoundingBox(out _sceneMin, out _sceneMax, out _sceneCenter);
_pivot = _sceneCenter;
CountVertsAndFaces(out _totalVertexCount, out _totalTriangleCount, out _totalLineCount, out _totalPointCount);
CreateRenderingBackend();
}
