[Bf-committers] REF: GSoC Import/Export Support

[Benson Chepkwony]

Hi,
In reference to what Mitchell Stokes said,  I have not seen any Import 
extensions either.

https://github.com/Kupoman/blendergltf
https://github.com/KhronosGroup/glTF
This Two links that I was provide by Mike actually is a reference to the 
Blendergltf Export. I have not seen any work that relates with the 
Blendergltf Import.
There are no Import Extensions from these github links.

Thanks.

From,
Benson Chepkwony


On 3/29/2017 1:28 PM, Mitchell Stokes wrote:
> Benson,
>
> It looks like that part of the ideas page was copied from the previous year
> when blendergltf was still pretty new. Export is fairly well solved by
> blendergltf now, but there has been no work (that I know of) on import.
> Perhaps Mike or Bastien can comment on if this is still a good GSoC project.
>
> On Wed, Mar 29, 2017 at 9:33 AM, Benson Chepkwony <bchepkwny at att.net> wrote:
>
>> Hi Daniel,
>> According to Mitchell Stokes;
>>
>> "As Mike mentioned, blendergltf (https://github.com/Kupoman/blendergltf),
>> handles glTF export from Blender, and it already exports everything in the
>> glTF 1.0 spec. There is certainly more work to do on glTF export (e.g.,
>> support more extensions, fix bugs, implement the glTF 2.0 draft spec, etc).
>> However, blendergltf is not currently under the Blender Foundation (nor any
>> org involved in GSoC), which makes glTF export a poor GSoC candidate.
>>
>> This leaves glTF import. I am not sure if there is enough work on import to
>> support a GSoC project, but I will try to answer your questions."
>>
>>          It seems gITF Import has not been completed and there are still
>> work to be done on it. However, I am not sure what parts of the gITF import
>> are missing or needs to be completed??
>>
>> The "Import/Export Support for gITF File Format" is among the 2017 List of
>> Ideas. Does this imply to the Import "File Format" only as describe on the
>> Ideas page?
>>
>> Thanks.
>>
>> From,
>> Benson Chepkwony
>>
>>
>> On 3/29/2017 11:11 AM, Mitchell Stokes wrote:
>>> Hello Benson,
>>>
>>> As Mike mentioned, blendergltf (https://github.com/Kupoman/blendergltf),
>>> handles glTF export from Blender, and it already exports everything in
>> the
>>> glTF 1.0 spec. There is certainly more work to do on glTF export (e.g.,
>>> support more extensions, fix bugs, implement the glTF 2.0 draft spec,
>> etc).
>>> However, blendergltf is not currently under the Blender Foundation (nor
>> any
>>> org involved in GSoC), which makes glTF export a poor GSoC candidate.
>>>
>>> This leaves glTF import. I am not sure if there is enough work on import
>> to
>>> support a GSoC project, but I will try to answer your questions.
>>>
>>> 1. You would start with easy things (meshes, nodes, cameras, materials,
>>> etc.) and eventually move on to skeletal meshes and animations.
>>>
>>> 2. A new addon would be created to handle glTF import. I cannot think of
>>> any existing Blender files that would need to be modified for a glTF
>>> importer.
>>>
>>> 3. Between the Python standard library and Blender's Python API, you
>> should
>>> have most, if not all, of the utility classes necessary for glTF import.
>>>
>>> 4. An importer should be able to import everything defined in the glTF
>>> spec. It will likely also need to support some glTF extensions such as
>>> KHR_materials_common (
>>> https://github.com/KhronosGroup/glTF/tree/master/extensions/Khronos/KHR_
>> materials_common)
>>> and KHR_binary_glTF (
>>> https://github.com/KhronosGroup/glTF/tree/master/
>> extensions/Khronos/KHR_binary_glTF
>>> ).
>>>
>>>
>>> --Mitchell Stokes
>>>
>>> On Wed, Mar 29, 2017 at 6:57 AM, Benson Chepkwony <bchepkwny at att.net>
>> wrote:
>>>> Hi,
>>>> Thanks for the respond about the Import/Export Util and for the links.
>>>> And in relation, I have this questions.
>>>> 1. Is the Import/Export only going to involve Skinned Meshes? or does
>>>> this includes Export of surface properties and shapes such as Texture,
>>>> Materials, Light, Cameras, Transforms, Animations etc?
>>>>
>>>> 2. What part of Blender files needs to written since there is already an
>>>> existing exporter code?
>>>>
>>>> 4. Are all gITF utility classes such as Files IOs, Bufferedreader,
>>>> Inputstream etc. Have been written already?
>>>>
>>>> 5. What functionality should the Importer/Export have? Like load file,
>>>> write file to output, read in input file?
>>>>
>>>> Thanks.
>>>>
>>>> From,
>>>> Benson Chepkwony
>>>>
>>>>
>>>> On 3/28/2017 12:42 PM, Mike Erwin wrote:
>>>>> Hi Benson, I can answer some of these questions.
>>>>>
>>>>> The latest Blender glTF exporter can be found at
>>>>> https://github.com/Kupoman/blendergltf. It's implemented in Python
>>>> (same as
>>>>> nearly all import/export code).
>>>>>
>>>>> Right now glTF is mostly used for WebGL engines, but it should not be
>>>>> limited to that. LibreOffice and a future version of MS Office can
>> import
>>>>> glTF assets. I expect other game engines & applications to add glTF
>> once
>>>> it
>>>>> becomes more mainstream.
>>>>>
>>>>> Read more about the glTF format at https://github.com/
>> KhronosGroup/glTF.
>>>>> It's JSON (not XML) with lots of binary data. The spec describes the
>>>> object
>>>>> model. Current spec is 1.0; 2.0 is nearly finished.
>>>>>
>>>>> Import/export plugin will probably be invoked from the user interface.
>>>> Just
>>>>> a simple menu item.
>>>>>
>>>>> Hope this helps!
>>>>>
>>>>> Mike Erwin
>>>>> musician, naturalist, pixel pusher, hacker extraordinaire
>>>>>
>>>>> On Tue, Mar 28, 2017 at 11:30 AM, Benson Chepkwony <bchepkwny at att.net>
>>>>> wrote:
>>>>>
>>>>>> Hi,
>>>>>> Hay, I would like to ask a few regarding the Import/Export support for
>>>>>> gITF file format project.
>>>>>> 1. How is the current Import/Export implemented?
>>>>>> 2. Does the Import/Export targets web applications only or non-web
>>>>>> applications too?
>>>>>> 3. What is the Import/Export pipeline made of?
>>>>>> 4. Where is the best place to start on this project?
>>>>>> 5. Is the gITF scene encoded with XML or DOM?
>>>>>> 6. Is Import/Export process to be invoked from User Interface, Import
>>>>>> Wizard or from a command line?
>>>>>> 7. Is there any criteria that the Import/Export loader should be
>>>>>> implemented?
>>>>>>
>>>>>> Thank you.
>>>>>>
>>>>>> Sincerely,
>>>>>> Benson Chepkwony
>>>>>>
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