TriLib - Model Loading Package

Hi,
Concerning the problem into Android and iOS about missing libassimp.so, I sent you the source by mail the friday 26. Did you received it well ?
Thank you

 

Interesting statement about il2cpp using the default .NET libraries.
Can you show me a screenshot of your build settings?

 

Hi Rickomax,

attached the screenshot from my build settings.

Regards,
CAD Schroer

 

Maybe I stay too focus on the first error and I need to fix second error firstly ?

10-31 18:23:04.277 12439 12484 E Unity : Unable to find libassimp
10-31 18:23:04.498 12439 12484 E Unity : Exception: Error loading asset. Assimp returns: [Unable to open file "./Assets/Resources/PrefabBuilder/designConnected/garsnas_pia_3002_obj.obj".]

On Android what is the path to correctly reach a file present into the Assets folder ?

 

The real problem is the first error. I'm not sure about how Unity handles the native plugins selection for every android platform. If you prefer, we can connect via TeamViewer, so I can help you in your environment.

 

Yes we can do that, thank you to propose this solution
But I'm on UTC+1 and I am not available every day from 7:40 AM to 6 PM from monday to friday (my employee job...).
I am also available the saturday and the sunday.
Maybe we can schedule this by private message ?

I have test on Nexus 6 and I have the same error message.
So to resume, I get the message "Unable to find libassimp" on Nexus 6, OnePlus 3T and Samsung Galaxy Tab S3.
Also it doesn't work on iPhone XS and iPhone 7 but I can't still not confirm that I obtain the same error message (no find the way to get the logs... )

 

Good news !
I change the way to access to the .obj and ... it's work !!!
The first error "Unable to find libassimp" is still here but the second is no more present.



v1
It's currently work in progress but :
- I put the .obj into the "Assets/StreamingAssets" folder
- I use "Better Streaming Assets" to get bytes array and send it to trilib

v2
Now it's work with texture !
I use "Better Streaming Assets" to copy all files and directory contains into "StreamingAssets" folder into Application.persistentDataPath folder (it's like if I unzip this files).
Then I provide to trilib the file system path to Application.persistentDataPath/myFile.obj.
This implementation work well on windows and Android (and I expect it work also on iOS )

 

Hi!

What's the method you were using that isn't working?

 

Hi @rickomax,

I am getting this error with the zip file :

ZipException: Version required to extract this entry not supported (788)

what version of zip do you use and how can I take care of this?

UPDATE
I just downloaded latest sharpziplib and it worked fine for now, despite it saying that Stream api is replaced with IDisposable pattern. Not sure if this will break anything going forward.

 

I saw on assimp's repo it has some export functionality. I don't know for sure, but it looks cool (https://github.com/assimp/assimp/blob/master/code/Exporter.cpp). Could we also use the export functionality on TriLib? Because as far as I know TriLib built on top of assimp

 

Thank you for your feedback!

I will update the SharpLibZip included in TriLib and check if that won't cause issues.

 

Hi !

I was just providing a classic path to TriLib like "./MyDirectory/MyObj.obj".

 

Hello
I use your AssetLoaderAsnc to load many models at the same time. So when a model is loaded, it goes recursively over all children and load them at the same time. Then this error occurs:

Code (CSharp):

1. NullReferenceException: Object reference not set to an instance of an object
2. TriLib.AssetLoaderBase.BuildBones (IntPtr scene) (at Assets/Libraries/TriLib/TriLib/Scripts/AssetLoader/AssetLoaderBase.cs:2297)
3. TriLib.AssetLoaderBase.LoadInternal (IntPtr scene, System.String basePath, TriLib.AssetLoaderOptions options, Boolean usesWrapperGameObject) (at Assets/Libraries/TriLib/TriLib/Scripts/AssetLoader/AssetLoaderBase.cs:1417)
4. TriLib.AssetLoaderBase.InternalLoadFromFile (System.String filename, System.String basePath, TriLib.AssetLoaderOptions options, Boolean usesWrapperGameObject) (at Assets/Libraries/TriLib/TriLib/Scripts/AssetLoader/AssetLoaderBase.cs:684)
5. TriLib.AssetLoaderAsync+<LoadFromFile>c__AnonStorey0.<>m__0 () (at Assets/Libraries/TriLib/TriLib/Scripts/AssetLoader/AssetLoaderAsync.cs:52)
6. TriLib.ThreadUtils+<RunThread>c__AnonStorey0.<>m__0 () (at Assets/Libraries/TriLib/TriLib/Scripts/Extensions/ThreadUtils.cs:50)
7.  

When loading it with the normal AssetLoader it works fine.

Can someone help?

 

Hi. Could you try doing the same procedure instantiating a new AssetLoaderAsync for each model?

 

Now it works thanks!!!

 

The fbx file which I imported in real time had only one material assigned to the whole object. And the texture files were not loaded. is there any way to import all the materials(4 materials are there for each object). Also, how do I import the textures?

 

Hi!

There is one post-processing step that merges redundant materials, you can disable it doing:


var assetLoaderOptions = AssetLoaderOptions.CreateInstance();
assetLoaderOptions.PostProcessSteps &= ~AssimpPostProcessSteps.RemoveRedundantMaterials;

using (var assetLoader = new AssetLoader()) {
var model = assetLoader.LoadFromFile(“my filename.fbx”, assetLoaderOptions);
}

 

Hei
When exporting a GLTF model with UnityGLTF (https://github.com/KhronosGroup/UnityGLTF) and then import it with TriLib the model does not look like before exporting with UnityGLTF. In the GLTF Importer from UnityGLTF,which imports the correct model, the attributes like vertex positions etc. are also somehow changed when importing it in Unity.
Any idea how the imported GLTF model will look the same as the exported one?

 

Hi!
The GLTF module has been updated to accept the 2.0 specification on latest Assimp commits. I will update TriLib this week to include the latest Assimp modifications.

 

Hi Rickomax,

did you reproduce my problem with the il2cpp build on UWP?

Regards,
CAD Schroer

 

Thanks! I will wait for the next update

 

Hello
I used this plugin to develop the application, and all the tests on Win10 passed without problems. However, when the build began to be tested on Win7 (x64, SP1), an error appeared:
dllnotfoundexception assimp
In notepad: failed to load "c:...Plugins\assimp.dll" with error "...(incomprehensible character set, wrong encoding)"
AssimpInterop.cs 180
.dll is in the folder.
Please tell me how I can fix it?

Unity: 2018.1.0
Plugin: 1.8.7b

P.S.My application is under moderation, so if the bug is known and fixed in the new version, can I get it before the release in the Asset store?

 

Looking for an answer, I came across many similar topics. In many of them, the decision was made: change Runtile dll to MT, otherwise dll will work only on some PCs.
Unfortunately, as far as I know, there is no source code of all libraries in the package and I cannot test it myself.
https://forum.unity.com/threads/dllnotfoundexception-when-depend-on-another-dll.31083/#post-3563495
https://forum.unity.com/threads/fal...-2-osx-10-8-4-standalone.191966/#post-1496078

 

I will be back to my office in two days, but meanwhile, we have the TriLib source avaliable. I will send you via PM.

 

Okay, I will be waiting. Hope we can solve this sooner.

 

Hello!

I'm trying to load a .fbx with textures but the textures take a lot of memory and crash on iOS because it reaches the maximum memory.

For testing purpose I used a small .fbx with only 2 textures.
Here is a screenshot from Unity editor and the texture takes ~170 MB.
Also I don't understand why the texture is duplicated.
the

Code (CSharp):

1. assetLoaderOptions.TextureCompression

is the default value.




How can I decrease the memory usage of the textures ?

Thank you.

 

Hi!

The only place where the texture is duplicated is when creating the texture mip-map levels, which I plan to do with stb_image on a future version, avoiding the duplicate.

I will profile TriLib on iOS to check where is the texture loading flaw.

 

Hello @rickomax ,

Any news on the android logcat spamming the libassimp not found error? I am getting that error too frequently. It starts with Kernel32.dll not found and then it just spams the libassimp error while loading a model.

 

Is there any new update available with the latest Assimp modifications?

 

Hi @rickomax , I have the same problem of @federicoVS with Unity 2018.2... Any help would be apreciated.
Thanks!

 

Hi! Not yet.

There are quite a few items on TriLib bug-list at the moment.
Anyway, Assimp version will be updated on new TriLib update for sure, but I can't give an ETA yet.

Best regards,
Ricardo Reis.

 

Hi!

The TriLib bug-list is a bit bigger than usual, so it should take more substantial time till your issue be resolved. I'll keep you updated.

Best regards,
Ricardo Reis.

 

Hi!

I'm already working on WebGL platform issues. I'll probably have updates on it on the next TriLib update.

Best regards,
Ricardo Reis.

 

Hello!

Thank you for looking at it.

It would be nice if we could choose the compression of the textures same as Unity.

 

Is this feature part of the current release?

 

Hi, there seems to be problem with importing skinned fbx files. With unity fbx importer everything is ok, but when I use TribLib all meshes are rendered using skinned mesh renderer and skinning is completely broken. I tried all
AssimpPostProcessSteps but it doesn't help.

 

Hi. Not yet!

 

In your FileOpenDialog: Is there any possibility to change the start directory?
I tried FileOpenDialog.Instance._directory, but this variable is private.

 

Hi,

I'm building for UWP and I have the same exact issue than you. The "expected x86 architecture" for assimp.dll and the endless loop when it comes to assimp methods calls...

Did you manage to solve it since then ?

EDIT : Finally, I found a solution.

The hint was a looping error :

Run-Time Check Failure #0 - The value of ESP was not properly

I managed to solve it by replacing all the "CallingConvention.StdCall" with "CallingConvention.Cdecl" in AssimpInterop.cs

Regards.

 

Hi!

Thank you for your feedback. I will investigate this issue further.

 

Hi!

You can set this variable to be public. I'll update the sample code to set it public next time.

 

Hi!

Please send the model you're trying to load to contato@ricardoreis.net

 

Hi!
Is support for .pmx (MMD) planned (or other MMD files)?
(it looks like it is available in assimp (Importers))

 

If someone has problem with broken skinned mesh renderer- it's problem with dupliated names in fbx models, I made very ugly hack to workaround this. Fortunately it's C# part of this package that's broken.
Funny thing is that dev actually do lot of things in code to rename those objects names to not have duplicates, but somehow forgot to sync those changes with bones and it was very hard to fix/workaround(very convoluted logic). I hope it'll get proper fix in future.

 

Hi!
i`m having problems importing 2.0 GLB (Binary GLTF) files that are been loaded without textures. How can we get some "in development" version of next trilib version to test if it's fixed already? We have some milestone for this project in middle of December so it would be great have something working even if it's not the final version.
This is the file i'm using to test:
http://cogumelosoftworks.com/files/sofa.glb

 

Hi!

I can confirm Assimp has a loder for PMX files, so TriLib is also able to load it.
I'll update the oficial file formats list on the website.

Best regards,
RIcardo Reis.

 

Hi!

I'm planning to release a beta version with GLTF2 fixes (vertex color loading and animation support) in the next week.

Best regards,
Ricardo Reis.

 

Hello,

when I use Trilib to load a Mesh file (DAE in my case), it takes a Long time until it is done (in my case betweeen 20 seconds and a Minute).

I made a "Loading cube" with a simple Script with a constant Rotation in the Update Method.
But as soon as I start loading with Trilib, my cube freezes. Is there a way to have it still rotating while Trilib loads or have some other simple Animation to Show it did not hang up but is loading?

when I search for it I only find stuff when loading a Scene...

Is there some way already in TirLib or do you know a simple way?

Thanks!

PS: I am using

CADGameObject = assetLoader.LoadFromFile(fileName, assetLoaderOptions);

 

PS: I found there is an Async way, so I tried, but still my cube freezes:

Code (CSharp):

1.         public async Task<GameObject> LoadCadFile(string fileName, Vector3 position, Quaternion rotation, int addonNumber = 0, string tag = "")
2.         {
3.             CADGameObject = null;
4.             // Laden
5.             Debug.Log("Load CAD file:" + fileName);
6.             using (var assetLoader = new AssetLoaderAsync())
7.             {
8.                 var assetLoaderOptions = AssetLoaderOptions.CreateInstance();
9.                 // Mit diesem Flag die Original-Namen aus dem DAE verwenden (werden sonst mit NodeXY hochgezählt)
10.                 assetLoaderOptions.AdvancedConfigs.Add(AssetAdvancedConfig.CreateConfig(AssetAdvancedPropertyClassNames.ColladaImportUseColladaNames, true));
11.                 if (!Globals.ConfigData.LoadSimple)
12.                 {
13.                     assetLoaderOptions.AdvancedConfigs.Add(AssetAdvancedConfig.CreateConfig(AssetAdvancedPropertyClassNames.CalculateNormalsMaxSmoothingAngle, 0));
14.                 }
15.                 // File laden, momentan testweise mit hartem Pfad
16.  
17.                 // File laden aus Namen vom FileDialog
18.                 _addonNumber = addonNumber;
19.                 _position = position;
20.                 _rotation = rotation;
21.                 await assetLoader.LoadFromFile(fileName, assetLoaderOptions, CADGameObject, onCADLoaded);
22.  
23.             }

 

Hi Elfinnik159, I'm having similar issue, would you mind sharing the solution? Many thanks in advance.