Add Open Asset Importer to Godot.

[fire]

Supports various formats from Open Asset Import Library (assimp). The focus is on FBX and MMD.

This code is contributed by IMVU Inc.

Thanks to everyone who has helped me.

For code review and code: @punto- @JFonS @reduz

For debugging: TheDuriel#1087 and Cthluhu Elden#2299

Others from IMVU Inc: Robert, Eric and Yu.

[NathanWarden]

This would be a great addition! Thanks for getting started on this :)

[slapin]

That is great work indeed.
But why not directly into Godot format?

[fire]

Bugfix with the chained image relocation. It allows gltf2 image locations to be relocated from .import to the original location.

[Calinou]

I just tested it, it's working on a model in .md5mesh format (IronSnout X10K from Cube 2: Sauerbraten, licensed under CC BY 3.0):

There seems to be an issue with normals, as I cannot get lighting or normal maps to show up on the model (I just bumped the ambient light value for the screenshot).

Good work so far 😃

[fire]

from https://developer.nvidia.com/orca/amazon-lumberyard-bistro

Interior: 814,435 triangles

Format: FBX

[samvila]

Wait... is this going to bring the possibility of baking an animation using MDD and then play that baked animation inside Godot? Because that's one of the things I miss from the Godot pipeline. For example I always wanted to simulate something in blender and bake that simulation for then play the same animation in Godot. Being able to play baked simulations inside Godot would be amazing!

[fire]

This is a proof of concept, but it's starting to look usable. @samvila So maybe..

[fire]

Irc logs regarding automated testing:

<Calinou> iFire: https://en.wikipedia.org/wiki/Structural_similarity
<Calinou> I'm not sure if it's the best algorithm for just checking whether there's *any* difference between two images
<Calinou> it's typically used for quality comparisons
<iFire> Calinou: I'm not looking for a sha512sum
<iFire> so this is what I want
<Calinou> yeah, I know checksums are not adequate for this
<Calinou> but SSIM metrics are usually the most relevant for image quality, not really for checking if rendering is broken
<Calinou> it's still worth a try :)
<mrcdk> dolphin uses/used this to find rendering regressions between versions https://github.com/dolphin-emu/fifoci/

[fire]

Currently unable to solve problems with bone rotation.

If you guys can send some broken models, I can debug them. Been stuck.

For example here is a broken screenshot of a FBX import.

Note that the display of the first frame is what I'm looking at.

This without playing the animation.

[slapin]

Please read Blender vs UE4 articles about fbx pipeline with Blender, they had that issues (bone rotation) and had some solutions.

…

On Sun, Nov 25, 2018 at 7:10 AM K. S. Ernest (iFire) Lee < ***@***.***> wrote: Currently unable to solve problems with bone rotation. If you guys can send some broken models, I can debug them. Been stuck. For example here is a broken screenshot of a FBX import. Note that the display of the first frame is what I'm looking at. [image: godot windows tools 64_2018-11-24_20-08-21] <https://user-images.githubusercontent.com/32321/48975450-c5a1bc00-f024-11e8-8dc3-92c51bdc7ea8.png> This without playing the animation. [image: godot windows tools 64_2018-11-24_20-08-43] <https://user-images.githubusercontent.com/32321/48975451-c5a1bc00-f024-11e8-8389-2a8650b96f34.png> — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#23837 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAAX0wmOV_2Y2Sa3mUFScs8eVfDFugRnks5uyhhHgaJpZM4YqVQ-> .

[akien-mga]

Looks good to me, can be merged once the CI passes.

[akien-mga]

Thanks a ton!

[suiradproject]

Is this no longer available?

[fire]

The assimp importer is merged into godot 3.2 master.