Re: [Maya2osg-users] TR: Add osg::Switch support to Maya2Osg

[Javier T. <jav...@gm...>]

  Hi David,

  I have just committed your changes to SVN trunk. The only change is that
HardwareMipMapGeneration is enabled for linear_mipmap_linear filtering.

  Can you test if the current trunk is working for you? In case you have a
test scene reproducing the mipmap problem, please send it to me and I'll
try to debug it.


  Regards,


On Mon, Dec 7, 2015 at 1:23 PM, BOYREL David <dav...@ok...> wrote:

>
> Hi Javier and maya2osg users,
>
>
> It has been a long time since I worked on maya2osg exporter. Users I'm
> working with reported me some
>
> problems on the exporter, so I made some fixes to solve them. I'll be
> glad if these fixes could be commited
>
> to the trunk.
>
>
> You will find attached to this email the first bug fix I did 7 or 8 months
> ago. It seems that it has never been
>
> commited, so I submit it again. These are some bug fixes about cube maps
> exports. The fixes are :
>
>  - The filter type was not read in the correct node.
>
>  - I set the default texture filter for the cubeMap to
> LINEAR_MIPMAP_LINEAR.
>
>    If at least one face of the cubemap has a texture filter set to None, I
> set the texture filter of the whole cubemap
>
>    to NEAREST.
>
>  - Enabling HardwareMipMapGeneration with texture filtering does not seem
> to work, so I enabled it only
>
>    when filtering is set to NEAREST.
>
>  - Cubemap was not visible when exporting the maya model in a binary file
> with embedded textures, due to
>    relative file path.
>
>
> I attached to this mail some icons I made for the  new "create switch"
> buttons.
>
>
> Tell me if there is any problem with this submission, I will fix it if
> there is.
>
>
> Best regards,
>
>
> --
> David BOYREL
> OKTAL Paris
> 19 Bd des Nations Unies - 92190 Meudon (France)
> Tél. : +33 (0)1 46 94 93 52
> Fax : +33 (0)1 41 41 91 44
> http://www.oktal.fr
>
>
>
> ------------------------------
> *De :* BOYREL David <dav...@ok...>
> *Envoyé :* mercredi 4 mars 2015 15:43
> *À :* Javier Taibo
> *Cc :* may...@li...
>
> *Objet :* Re: [Maya2osg-users] Add osg::Switch support to Maya2Osg
>
>
> Hi Javier,
>
>
> Thank you for commiting the osg::Switch support to maya2osg. You'll find
> attached to this mail some icons I made for the  new shelf
>
> buttons. I hope they are fine for you ;)
>
>
> You will find too the fix I did for the cubemap. I found several problems :
>
>  - The filter type was not read in the correct node.
>
>  - I set the default texture filter for the cubeMap to
> LINEAR_MIPMAP_LINEAR.
>
>    If at least one face of the cubemap has a texture filter set to None, I
> set the texture filter of the whole cubemap
>
>    to NEAREST.
>
>  - Enabling HardwareMipMapGeneration with texture filtering does not seem
> to work, so I enabled it only
>
>    when filtering is set to NEAREST.
>
>  - Cubemap was not visible when exporting the maya model in a binary file
> with embedded textures, due to
>
>    relative file path.
>
>
> I'm currently trying to find a way to export the information about using
> vertices colors as material infos (by setting
>
> the material color mode to something other than OFF). I thought about
> using the "Display Colors" and "Display Color Channel"
>
> information set in the "Mesh Component Display" toolbox. If you have ever
> thought about exporting those kind of informations
>
> or if you have any ideas about it, I'll be glad to hear your suggestions.
>
>
> Best Regards,
>
>
> --
> David BOYREL
> OKTAL Paris
> 19 Bd des Nations Unies - 92190 Meudon (France)
> Tél. : +33 (0)1 46 94 93 52
> Fax : +33 (0)1 41 41 91 44
> http://www.oktal.fr
>
> ------------------------------
> *De :* Javier Taibo <jav...@gm...>
> *Envoyé :* vendredi 13 février 2015 20:46
> *À :* may...@li...
> *Objet :* Re: [Maya2osg-users] Add osg::Switch support to Maya2Osg
>
>   Hi David,
>
>   Sorry for the delay. I have reviewed your code and changed a few things.
> The check for the dynamic attribute "isSwitch" has been simplified, and an
> additional check for the presence of the switch is added before adding it
> as a child of the transform node.
>
>   Also, I added a pair of buttons to the shelf, so you can easily select
> any transform in your scene and convert it to a switch or undo it. No icons
> for this buttons (default icon), if anybody wants to contribute with some
> art to the project, is welcome :)
>
>   These changes are commited to trunk (r266).
>
>   It would be nice to add also the switch configuration to Maya node, but
> it is not trivial to keep it up-to-date with Maya scene graph (maybe
> connecting the switch values with the visibility attribute of the
> children). We'll let it for a future release :)
>
>   If you send me the code with the corrections to the cubeMap, I'll take a
> look as soon as I have time.
>
>
>   Regards,
>
>
> On Wed, Feb 4, 2015 at 1:50 PM, BOYREL David <dav...@ok...>
> wrote:
>
>> Hi Javier,
>>
>>
>> Sorry for being so long to answer your mail.
>>
>>
>> You will find attached to this email a submission for the osg::Switch
>> support to maya2osg.
>>
>>
>> The modification I made is the one we discussed : if a custom attribute
>> named "isSwitch" is
>>
>> found on a maya transform node,  the maya node is exported with an
>> osg::MatrixTransform
>>
>> with an osg::Switch as a child, to keep to transformation data. The name
>> of the attribute is case
>>
>> insensitive.
>>
>>
>> The modification was made only on the group.cpp file. The revision I used
>> is the head one (r265
>>
>> from trunk).
>>
>>
>> Tell me if this modification is good for you.
>>
>>
>> I also found a problem in the setting of texture filter type of cubeMap
>> textures. It seems that the
>>
>> test of the "filterType" plug is done on the wrong node. It needs to be
>> tested a bit more. I'll send
>>
>> you a submission when I cleaned my code.
>>
>>
>> Best Regards.
>>
>>
>> --
>> David BOYREL
>> OKTAL Paris
>> 19 Bd des Nations Unies - 92190 Meudon (France)
>> Tél. : +33 (0)1 46 94 93 52
>> Fax : +33 (0)1 41 41 91 44
>> http://www.oktal.fr
>>
>> ------------------------------
>> *De :* Javier Taibo <jav...@gm...>
>> *Envoyé :* mardi 18 novembre 2014 22:01
>>
>> *À :* may...@li...
>> *Objet :* Re: [Maya2osg-users] Add osg::Switch support to Maya2Osg
>>
>>   Hi David,
>>
>>   Create custom Maya nodes is a bit overkill for what you want, if I am
>> understanding it correctly what you are trying to do.
>>
>>   I suppose all you need to do is check for the "script" attribute(s) and
>> create a osg::Switch when present or an osg::Transform otherwise. It seems
>> a light modification to the exporter, and should not break anything, so I
>> would be happy to add it to the trunk. Send me the modified file(s) and I
>> will review and commit them. Just follow the OSG submission rules (whole
>> files, not patches). Thank you!
>>
>>
>>   Regards,
>>
>>
>> On Tue, Nov 18, 2014 at 10:05 AM, BOYREL David <dav...@ok...>
>> wrote:
>>
>>> Hi Javier,
>>>
>>>
>>> Thank you very much for your quick answer.
>>>
>>>
>>> Your suggestion is wise. I'm not experienced enough with maya to be sure
>>> the solution I choose is the right one. But I saw that introducing new kind
>>> of nodes in Maya will indeed results in errors when loading the Maya scene
>>> in absence of maya2osg.
>>>
>>>
>>> Using custom attributes seems good to me.
>>>
>>>
>>> Do you think that I could submit to maya2osg the support of osg::Switch
>>> using custom attributes?
>>>
>>>
>>> Because I need anyway to perform some custom operations on the generated
>>> OSG scene graph, so I could manage osg::Switch at that time, based on the
>>> OSG nodes description, and leave the maya2osg exporter as it is.
>>>
>>>
>>> Tell me if osg::Switch support may interest some other users of maya2osg.
>>>
>>>
>>> Thank you again for your answer.
>>>
>>>
>>> Regards,
>>>
>>>
>>> --
>>> David BOYREL
>>> OKTAL Paris
>>> 19 Bd des Nations Unies - 92190 Meudon (France)
>>> Tél. : +33 (0)1 46 94 93 52
>>> Fax : +33 (0)1 41 41 91 44
>>> http://www.oktal.fr
>>>
>>> ------------------------------
>>> *De :* Javier Taibo <jav...@gm...>
>>> *Envoyé :* vendredi 14 novembre 2014 20:43
>>> *À :* may...@li...
>>> *Objet :* Re: [Maya2osg-users] Add osg::Switch support to Maya2Osg
>>>
>>>   Hi David,
>>>
>>>   IMHO the best way to do what you want is by far the third one. It is
>>> quite easy to add an extra attribute to a Maya transform node and later
>>> check in the exporter whether the transform is marked as a switch and
>>> create a Switch or a Transform depending on the case.
>>>
>>>   From mel you can do it with something like that:
>>>
>>>   addAttr -ln "isSwitch"  -at bool  | pSphere1;
>>>
>>>
>>>   Regards,
>>>
>>>
>>> On Fri, Nov 14, 2014 at 4:53 PM, BOYREL David <dav...@ok...>
>>> wrote:
>>>
>>>> Hello people,
>>>>
>>>>
>>>> My name is David Boyrel from Oktal company. We develop a driving
>>>> simulation software (SCANeR Studio),
>>>>
>>>> which visual application is based on OSG. You can find some (old)
>>>> images on the OSG website :
>>>>
>>>>
>>>>
>>>> http://www.openscenegraph.org/index.php/gallery?AG_MK=0&AG_form_paginInitPages_1=1&AG_form_albumInitFolders_1=Screenshots/SCANeRII&AG_form_scrollTop=456&AG_form_scrollLeft=0&AG_MK=0
>>>>
>>>>
>>>> I am currently testing maya2osg  in order to provide to some of our
>>>> customers a way to export their database and vehicle
>>>>
>>>> production from Maya to our simulation software. For now, they use the
>>>> OpenFlight exporter. Maya2osg seems to be more
>>>>
>>>> flexible.
>>>>
>>>>
>>>> In order to add some logical informations into the scene graph, I'm
>>>> currently searching a way to add osg::Switch support to maya2osg.
>>>>
>>>>
>>>> Since I'm not very familiar with both Maya modeler and Maya API, I
>>>> thought about 3 ways to do this. But I'm not sure if these
>>>>
>>>> methods are correct. Here are my thoughts :
>>>>
>>>>
>>>> 1. Adding to the plugin a new custom DAG node, and to the exporter
>>>> shelf a command to create this kind of node, as a child
>>>>
>>>>  of the currently selected node.
>>>>
>>>>  I managed to do this by creating a custom node that inherits
>>>> MPxTransform. This node will become an osg::Switch
>>>>
>>>>  when exported by maya2osg.
>>>>
>>>>  However, I understood DAG nodes are only Transforms or Shapes. So
>>>> my new DAG node does not seem to fit the Maya approach.
>>>>
>>>>  And I would have to convert this node to an osg::Switch above an
>>>> osg::MatrixTransform.
>>>>
>>>>
>>>> 2. Adding to the plugin a new custom node (not a DAG node), and to the
>>>> exporter shelf a command to create this kind of node.
>>>>
>>>>  This new type of node will have an output attribute (maybe a table, I
>>>> don't know if its possible), that could be plugged to a
>>>>
>>>>  DAG node "visibility" attribute.
>>>>
>>>>  So this new node will not be a DAG node, and so will not have any
>>>> parent or children.
>>>>
>>>>  I feel this is more the "Maya way" to give to maya users the ability
>>>> to create switches.
>>>>
>>>>
>>>> 3. Just adding a custom attribute to maya nodes.
>>>>
>>>>  I saw the maya2osg exporter writes custom attributes to the OSG nodes
>>>> description.
>>>>
>>>>  I could then use a traverser to find the nodes having the switch
>>>> attribute description, and then
>>>>
>>>>  modify the scene graph to insert a Switch above the node.
>>>>
>>>>
>>>>
>>>>  But adding a custom attribute in Maya does not seem to be very
>>>> intuitive.
>>>>
>>>>
>>>> I do not know Maya and its API very well, so maybe I'm totally wrong.
>>>>
>>>> So if you could please tell me what you think about this, or how would
>>>> you do this, I would be grateful.
>>>>
>>>>
>>>> My hope is to submit this development to maya2osg. That's why I tell
>>>> you about this.
>>>>
>>>>
>>>> Regards,
>>>>
>>>>
>>>> --
>>>> David BOYREL
>>>> OKTAL Paris
>>>> 19 Bd des Nations Unies - 92190 Meudon (France)
>>>> Tél. : +33 (0)1 46 94 93 52
>>>> Fax : +33 (0)1 41 41 91 44
>>>> http://www.oktal.fr
>>>>
>>>>
>>>>
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>>>>
>>>
>>>
>>> --
>>> Javier Taibo
>>>
>>>
>>>
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>>
>>
>> --
>> Javier Taibo
>>
>>
>>
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>
>
> --
> Javier Taibo
>
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-- 
Javier Taibo