assimp/assimp

Official Open Asset Import Library Repository. Loads 40+ 3D file formats into one unified and clean data structure.

Julian Vallée

@JulianVallee_gitlab

For some reason my scenePointerAfterPP always returns as zero, but from what I understand it should return a valid pointer, no?

Julian Vallée

@JulianVallee_gitlab

I have documented my issue under assimp/assimp-net#65 now, better than dumping all that info into gitter I suppose

Matthew Wallace

@matthewswallace_twitter

I have assimp setup in Visual Studio 2019 on windows 10. Has anyone successfully added the ability to compile and build .so file for Android using Visual Studio? I'm looking for a good resource on how to compile the latest assimp 5 for android. like @joseangelmt I'd like to get this working for Android so I can use Assimp in Oculus Quest 2.

My other request would be ... If someone has successfully compiled and can share the .so file that will work for Oculus Quest 2, could you please share?

turol

@turol

i don't think visual studio can compile stuff for android

you need the android ndk and then build it with that

Matthew Wallace

@matthewswallace_twitter

VS does have an Android plugin for it. I'm not an Android Developer so I was hoping to find some help in this group compiling for mobile platforms.

Matthew Wallace

@matthewswallace_twitter

Well well ... I'm noticing that android studio allows you to add C++ projects to your android project. I'm guessing there may be a way to add assimp to the project and compile it via android studio?

Kim Kulling

@kimkulling

there are options via cmake

so I was able to build assimp for android by using gradle and cmake

Matthew Wallace

@matthewswallace_twitter

@kimkulling do you have a step by step on this? If not would you mind writing it up. It would be extremely helpful. Once I get it working on my end I'm happy to write up a more detailed tutorial, maybe even a video and post it in the wiki for everyone.

I'd then like to get a build system down for ios.

Finally, I think it would be really cool if we could create build systems online so that everytime a major release is put out we can supply everyone downloadable binaries for mobile and desktop operating systems.

I'd love to make it extremely easy to get up and running using assimp for developers who are not well versed in C++ and CMAKE

turol

@turol

that would be an insane amount of work

latest cmake apparently now supports visual studio builds for android

at least according to their cmake

changelog

chriscamacho

@chriscamacho

hi all, does there exist a list of "engines" or frameworks that use assimp ?

matrixbot

@matrixbot

matias-lavik chriscamacho (Gitter):
Well, here are some:

Urho3D
MonoGame
Godot game engine (I heard they have been making their own FBX importer now, so not sure if they still use it)

There are plenty of closed source software/games using Assimp as well. And a bunch of smaller game (engine) projects you can find on GitHub (such as my own Ming3D). When we were hiring developers at my job, half of the candidates were already familiar with it 😁

Matthew Wallace

@matthewswallace

Would anyone in here be interested in making me a build system that will compile assimp for Android and iOS? I have a budget in mind that we can DM about.

RichardTea

@RichardTea

@kimkulling I've noticed that there are a huge number of dead branches on the main repo, can you delete all the ones that have already been merged?
It creates a lot of noise in git clients like GitKraken and GitHub Desktop, as the "master" branch ends up far below the fold.

Matthew Wallace

@matthewswallace

Reaching out again ... anyone interested in creating a build system for assimp for Android and iOS? I have budget for it. email me or DM. Email is m@615.io

RadiumP

@RadiumP

Hi, is there an estimated release date of 5.1? Thanks.

Kim Kulling

@kimkulling

@matthewswallace for android I can helpü

iOS will be harder

@RichardTea done, just cleaned them up

@RadiumP strongly depends on USD support

at this moment I try to get an idea

Matthew Wallace

@matthewswallace

@kimkulling sent you a DM

Dennis Dworak

@VentuzDennisDworak

Hey, first sorry - i am not a coder :D but i am doin research for our engine because we use assimp for 3d imports. i cant find a resource which tells me if the FBX importer does support splines/path.. thanks

Kim Kulling

@kimkulling

at this moment: no

but we could :-)

Reed Copsey, Jr.

@ReedCopsey

Trying to make my own "importer" (loading assimp data structures directly) to use the export features. Looking at texture.h, it seems like we should be able to load aiTexel info a,r,g,b values and set the hint to "rgba8888", but when I do that, nothing can open a glb or gltf that's generated. Is there something we should be doing in that scenario to allow the data to be written correctly?

In this example, the texture is a 512x2 image - gets into GLTF as:

    "images": [
        {
            "uri": "data:image/rgba8888;base64,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"
        }
    ],

(which seems too small, tbh - 1024*4x8 bit seems like it should be longer than that?)

Reed Copsey, Jr.

@ReedCopsey

Nevermind - managed to get it working.

Kim Kulling

@kimkulling

fine!

RichardTea

@RichardTea

With regards to PR #3614 :
The problem on macOS (and presumably also Linux) appears to be that the Google Draco shared library is not exporting the necessary symbols.
According to nm, it's not exporting any public function symbols at all, just some typeinfo
($ nm -gU libdracod.1.dylib)

Does anyone have any suggestions as to why that might be?

Kim Kulling

@kimkulling

you can add this manually

wizumwalt

@wizumwalt

Looking into assimp and wondering if IGES has ever been discussed for support? Also, of the available file formats, do any of them support additional info to the geometry elements to recognize them as different parts of the model?

squalldavid

@squalldavid

Hi Guys, I try to build a project which can import stp and stl files. But it always failed for stp file. Does assimp lib support stp file? thank you

RichardTea

@RichardTea

What is an "STP" file?

File extensions are almost meaningless, what's the actual format called and who owns it/what software created it?

Dennis Dworak

@VentuzDennisDworak

its so called STEP files .. for milling for example

RichardTea

@RichardTea

IFC-STEP has some support, but ISO-10303-21 STEP-File is not currently supported, there's a pile of open issues regarding implementing it.

I'm not entirely sure what the difference is myself, both use "STP"

Gargaj

@Gargaj

Hello all, here's a generic purpose model viewer project based on ASSIMP: https://github.com/Gargaj/Foxotron

could be helpful for testing assimp loaders

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