FBX Binary format not supported?

[RicoLiu]

Description of the problem

FBXLoader only supports FBX text format?

Three.js version

• [ ] Dev
• [x] r81
• [ ] ...

  Browser

• [x] All of them
• [ ] Chrome
• [ ] Firefox
• [ ] Internet Explorer

  OS

• [x] All of them
• [ ] Windows
• [ ] Linux
• [ ] Android
• [ ] IOS

  Hardware Requirements (graphics card, VR Device, ...)

[Mugen87]

Yes. Right now FBXLoader only supports ASCII format in version 7.

[RicoLiu]

Three.js version : r77

Why?

[Mugen87]

/ping @yamahigashi

[makc]

Why?

because there is no reference open-source implementation? if you know one, I would be curious to see it.

[makc]

Ah, wait, I thought it was about binary. For ASCII FBX below v7, I had the code here and a bunch of test models somewhere in my hard drive.

[takahirox]

Anyone here who has made or is making binary FBX parser? If not, I'm feeling like trying to make that...

[makc]

you have to love reverse engineering stuff to do this ) and, you may be lucky if it is simple tags, but if they serialize every data type uniquely, you are properf-ed: you're facing tweaking one number per model and saving it to see what has changed, at a time.

[takahirox]

Thanks for the advice. I've achieved to make a FBX binary parser by seeing this site now.

https://code.blender.org/2013/08/fbx-binary-file-format-specification/

I'll try to make ObjectParser which makes an object from the result of the binary parser next.

[makc]

oh wow, someone already went through the hell ,and there are specs )

[yamahigashi]

https://banexdevblog.wordpress.com/2014/06/23/a-quick-tutorial-about-the-fbx-ascii-format/ I think this link also is great stuff for to do that.

[Mugen87]

@takahirox It would be great if the new parser would have a similar structure like THREE.PLYLoader. This implementation uses an uniform logic for creating the THREE.BufferGeometry object after parsing the data from an ASCII or Binary input (see usage of method handleElement).

[takahirox]

ok I'll try. And I'm thinking if I also can use that for MMDLoader.

BTW does anyone here know if FBX binary format remains the same even below version 7?

[RicoLiu]

I have no idea.

Maybe @mrdoob knows?

[makc]

@takahirox did you share your binary fbx parser anywhere?

[takahirox]

Not yet... I'll do soon!

[jmsaulnier]

@takahirox Any updates :) ? Thanks!

[takahirox]

Sorry I've been busy lately... but soon soon!

[jmsaulnier]

@takahirox Awesome \o/

[takahirox]

I'm gonna start to work on FBX binary parser again from April. LMK if anyone is in hurry.

[avaer]

@takahirox Do you have something rough to share? We're doing a presentation at the end of the week and could really use FBX binary loading for the demo.

[adam-clarey]

Hi @takahirox I'm actually in a hurry, is there any update on this? I can help where able, but this is all still new to me.

[takahirox]

I'm just starting to work on that again. At least, I still need some weeks to share that.

[adam-clarey]

How many weeks do you think?

[takahirox]

Hm, maybe two or three weeks?

[adam-clarey]

Just out of curiosity, could this be done in a week or so if i were able to sponsor some of the dev work?

[takahirox]

Well, I can't promise but I'll try. Do you have any specific models data you can share? Wanna work with them as reference.

[adam-clarey]

testfile.fbx.zip This is similar to what we need if it helps

[mrdoob]

In the meantime...

For https://with.in/watch/under-neon-lights/ we used plain-text FBX but we changed the extension to .fbx.txt so the server would gzip it. I also optimised quite a lot the FBXLoader2. It ended up being a pretty decent workflow.

I wonder if there is anythingFBXLoader supports that FBXLoader2 doesn't or we can replace it already...

@kyle-larson?

[Mugen87]

Side note: The FBX example already uses FBXLoader2, too.

[Kyle-Larson]

@mrdoob The only difference between the FBXLoader and FBXLoader2 is the use of Index buffers. FBXLoader2 does not use index buffers. Other than that, FBXLoader2 should include all the features of the previous loader.

[mrdoob]

Ah! Time to replace it then 👌

[adam-clarey]

Is there any update on this guys? Happy to help out where I can.

[takahirox]

Do you have a text file version of testfile.fbx.zip? I wanna compare.

[adam-clarey]

testfile_ascii.fbx.zip

[takahirox]

Binary parser progress...

@adam-clarey

Can you share the screenshot of the model? Even the text file couldn't be loaded on the Three.js.

[takahirox]

Another model's screenshot....

Model: https://free3d.com/3d-model/robot-2162.html

[mrdoob]

Looking good! 😀

[RicoLiu]

Thank you all!

[adam-clarey]

I'll try and upload a screenshot soon. Essentially my use case is being able to bundle in material images and model into a single file

[adam-clarey]

block.fbx.zip

Here is a simple block with an image material baked into the fbx with an accompanying image of what it looks like in blender

[takahirox]

You mean, the texture image data should be in the fbx file?

[adam-clarey]

Yes. I may have exported that model incorrectly

[takahirox]

I can't find the image data in the fbx binary data... Let me know if anyone knows baked texture image data specification.

[adam-clarey]

maybe try this one block2.fbx.zip

[takahirox]

Still can't find... Are those files be loadable on other viewers?

Please let me know if anyone knows baked texture image data specification.

[jostschmithals]

I just tried to open block2.fbx.zip with blender and with 3ds max. Both show only the filename, but no image. It seems that there is only the reference to .../Users/adamclarey/Documents/burger-screen.jpg in the file.

[takahirox]

Yup, my parser extracts the file name but no image data.

[adam-clarey]

Ok. I'm obviously doing something wrong. Blender isn't the most intuitive app to use. I'll try something else

[jostschmithals]

I never heard that image data could be baked into a 3D export/import format (but only relative paths to the ressources).

Is this even possible?

[jostschmithals]

I just noticed: it is possible.

I will create such a test file and post it here.