[Bf-gamedev] New FBX Exporter
Bastien Montagne
montagne29 at wanadoo.fr
Tue Jun 24 20:31:41 CEST 2014
Hi Moraes,
And many thanks for this mail, it’s always cheering to know our work is
useful & appreciated - and your feedback is always welcomed, for sure! :D
Regarding non-working points:
* Armature apply transform: this is not (yet) implemented, only mesh
(and mesh-like) objects have it. We do have a patch about that, but I
have to take some time about it, it took me a great amount of time to
get it working last time, this is a really tricky thing to get working
in all cases… :/
* Groups: I’m not sure I understand what you expect here… that the
objects of one group get exported using group 'center' (i.e. average
center of all objects of that group) as origin, instead of World one?
And yes, adding more presets is possible, for sure… That scaling thing
though should no more be necessary (FBX has an UnitScaleFactor global
setting that is supposed to handle such issues), will have to check this
again I guess.
Thanks again for the feedback,
Bastien
Le 24/06/2014 16:47, Mango Jambo a écrit :
> Hi,
>
> I work at Oniria Company and we make simulators for huge companies,
> like Vale, Petrobras, CaseIH, etc. They hired me to migrate the
> workflow to Blender 6 years ago. So, since that day, our mainly
> workflow is to develop Art in Blender and code in Unity. I just told
> about our clients to you know how important this script was and is to
> make possible to use Blender in a project so demanding. This new
> version is an amazing improvement for this workflow.
>
> How do we work here?
> At the beginning we use to let Unity import .blend directly. There is
> a .py at Unity/Data/Tools folder to use a Blender installation to do
> that. It probably generates a .fbx at Library folder, or something
> like that. But it was horrible, because Unity use to broke the
> references when importing. So we had to fix it by hand. Dull work.
> So we decide to always delete this .py and use Blender to generate our
> .FBX. It was a great decision and gave us some good results:
> - Better control about what is importing or not;
> - We can let huge .blend files inside the Assets folder and Unity will
> never take that long long time to import it anymore (Best Unity error:
> Unity was unable to import a Blender file!);
> - So Unity imports only .fbx;
> - We could set groups to export. Sometimes after some months we use to
> forget what objects from the file we should export and grouping was a
> good solution for this;
> - Easy to export multiple .fbx files from one .blend using groups;
> - Faster workflow: no more .blend import time and easily export .fbx
> to the same .blend folder.
> I know it sounds a little bit repetitive, but working with it every
> day it is kind of important for us.
>
> So, soon the buildbot was released I made some tests here:
>
> *Working*
> Apply Transform - Thank you so much for this one! Z up vs Y up are
> alwas a mess for us;
> Linked Mesh - It is a great deal indeed! Exporting a forest, for
> example, wouldn't be better!
>
>
> *Not Working*
> Armature Apply Transform: Still exporting as X -90;
> Groups: it is not considering the Group Center, only the scene center.
>
> *Some thoughts*
> Custom proprieties is a good addition and I saw Shape Keys are planned
> to 2.72 version. For me, exporting to Unity, Custom Proprieties will
> make a lot of sense with Shape Keys implemented, mainly for facial
> animation. Thank you guys again!
>
> *Not Tested Yet*
> NLA export list. I saw the document and it looks a great workflow. I
> will test it soon.
>
> *Presets*
> And, as always, I would like to sugest some presets. Would be great to
> come with some presets, like:
> Unity - Scale 100, Smoothing Face...
> Unity without Animation
> Unity Groups
> Unreal - Scale 100
> Legacy (FBX 6.1)
> etc.
>
> I will make more tests and, if you may I, I would like to make more
> suggestions further. Blender is the best 3D tool with the best
> workflow. Now it is becoming the best tool for ANY workflow, thank to
> you, guys! Did I said thank you already? THANK YOU SO MUCH!!
>
> Cheers.
>
>
> Moraes Jr - aka mangojambo
> Animator & 3D Artist
> +55 43 88133399
>
>
> On 18 June 2014 12:41, Simon Broggi <simon.broggi at gmail.com
> <mailto:simon.broggi at gmail.com>> wrote:
>
> Just changed my Unity installation to automatically use the new
> exporter.
> To do this change the Tools/Unity-BlenderToFBX.py in the Unity
> installation.
> Here's the edited script that works for me (lines added marked
> with #changed to use binary fbx exporter) :
>
> blender249 = True
>
> try: import Blender
> except:
> blender249 = False
> import bpy
>
> if blender249:
> try: import export_fbx
> except:
> print('error: export_fbx not found.')
> Blender.Quit()
> else:
> try:
> import io_scene_fbx.export_fbx
> import io_scene_fbx.export_fbx_bin #changed to use binary fbx exporter
> except:
> print('error: io_scene_fbx.export_fbx not found.')
> # This might need to be bpy.Quit()
> raise
>
> # Find the Blender output file
> import os
> outfile = os.getenv("UNITY_BLENDER_EXPORTER_OUTPUT_FILE")
>
> # Do the conversion
> print("Starting blender to FBX conversion " + outfile)
>
> if blender249:
> mtx4_x90n = Blender.Mathutils.RotationMatrix(-90, 4, 'x')
> export_fbx.write(outfile,
> EXP_OBS_SELECTED=False,
> EXP_MESH=True,
> EXP_MESH_APPLY_MOD=True,
> EXP_MESH_HQ_NORMALS=True,
> EXP_ARMATURE=True,
> EXP_LAMP=True,
> EXP_CAMERA=True,
> EXP_EMPTY=True,
> EXP_IMAGE_COPY=False,
> ANIM_ENABLE=True,
> ANIM_OPTIMIZE=False,
> ANIM_ACTION_ALL=True,
> GLOBAL_MATRIX=mtx4_x90n)
> else:
> # blender 2.58 or newer
> import math
> from mathutils import Matrix
> # -90 degrees
> mtx4_x90n = Matrix.Rotation(-math.pi / 2.0, 4, 'X')
> print("moo")
> class FakeOp:
> def report(self, tp, msg):
> print("%s: %s" % (tp, msg))
> exportObjects = ['ARMATURE', 'EMPTY', 'MESH']
> minorVersion = bpy.app.version[1];
> if minorVersion <= 58:
> # 2.58
> io_scene_fbx.export_fbx.save(FakeOp(), bpy.context, filepath=outfile,
> global_matrix=mtx4_x90n,
> use_selection=False,
> object_types=exportObjects,
> mesh_apply_modifiers=True,
> ANIM_ENABLE=True,
> ANIM_OPTIMIZE=False,
> ANIM_OPTIMIZE_PRECISSION=6,
> ANIM_ACTION_ALL=True,
> batch_mode='OFF',
> BATCH_OWN_DIR=False)
> else:
> # 2.59 and later
> kwargs = io_scene_fbx.export_fbx_bin.defaults_unity3d() #changed
> to use binary fbx exporter
> io_scene_fbx.export_fbx.save(FakeOp(), bpy.context,
> filepath=outfile, **kwargs)
> # HQ normals are not supported in the current exporter
>
> print("Finished blender to FBX conversion " + outfile)
>
>
> On Fri, Jun 6, 2014 at 3:18 AM, Mitchell Stokes
> <mogurijin at gmail.com <mailto:mogurijin at gmail.com>> wrote:
>
> We have a new binary FBX exporter in Blender thanks to the
> efforts of Bastien Montagne. You can find more information in
> this recent code.blender.org <http://code.blender.org> post:
> http://code.blender.org/index.php/2014/06/supporting-game-developers-with-blender-2-71/
>
>
> We've run various tests ourselves, but we'd really like to get
> feedback from people actually using Blender to create assets
> for use in engines such as Unity, UDK, UE4, or just about any
> engine that accepts FBX files. To this end, we highly
> encourage users to test out recent development builds (found
> at http://builder.blender.org/) and play around with the new
> exporter. Use it, abuse it, throw your complicated production
> files at it, and then let us know what breaks via the bug
> tracker (https://developer.blender.org/).
>
> --Mitchell Stokes
>
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