[Ves] Size limit in the number of vertices

[Aashish Chaudhary]

The code to check for extension in ves is here:

bool vesOpenGLSupport::isSupportedIndexUnsignedInt() const

{

  return this->isSupported("GL_OES_element_index_uint");

}


in vesOpenGLSupport.cpp



And this is where Kiwi calls it:


//----------------------------------------------------------------------------

void vesKiwiViewerApp::initGL()

{

  this->vesKiwiBaseApp::initGL();

  this->Internal->DataLoader.setErrorOnMoreThan65kVertices(!this->glSupport()->isSupportedIndexUnsignedInt());

}



On Wed, Feb 6, 2013 at 9:56 AM, Aashish Chaudhary <
aashish.chaudhary at kitware.com> wrote:

> Dear Carlos,
>
> Could you please download GLView
> http://www.realtech-vr.com/glview/download.php and get all the extensions
> on your device for us?
>
>
>
> On Wed, Feb 6, 2013 at 8:27 AM, ves <ves at calculoandamios.com> wrote:
>
>> **
>>
>> Hi,
>>
>> The tablet is the Gemini GEM7008 (http://www.geminidevices.com) and it
>> is the entry level tablet. In fact, as an Ipad user I think that it is a
>> very basic tablet :)
>>
>> I bought it yesterday to make some tests and I mainly was looking for an
>> Android 4 device.
>>
>> The main characteristics are:
>>   CPU A13 (ARM Cortex A8 1Ghz)  Graphics Mali-400 3D Accelerator  Display 7"
>> 800x480 Capacitive 5 Point Multi Touch  OS Android 4 (Ice Cream Sandwich)
>> Storage 8GB (Up to 32GB with Micro SD)  RAM 512MB RAM  WiFi B/G  3G N/A
>> Webcam Front 0.3 Megapixel  Battery 2500mAh  I/O Ports 1 Micro SD Slot
>> (up to 32GB), 1 x Micro USB (OTG), 1 x Stereo Earphone Slot  Dimensions Width
>> 191 x Height 110 x Depth 8.6 (mm)  Special Features
>>
>> 5 Point Capacitive Multi Touch, G Sensor
>>
>>
>>
>> I have tested the Kiwiviewer version from the Google Play and It is not
>> possible to open the file, although it can open and play properly smaller
>> models exported by me or from the examples provided.
>>
>> Could you tell me where in the code is the runtime checking and also
>> which is the requirement for pass it. ? For me it is OK if generally
>> speaking new / powerfull tablets can support > 65k vertices, but I would
>> like to debug a little bit to understand the requirements. I will come back
>> with some results but I will need some time as the Android world is quite
>> new for me.
>>
>>
>>
>> Regards,
>>
>> Carlos
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Wed, 6 Feb 2013 22:33:38 +1000, Pat Marion wrote:
>>
>> It does depend on the device, older devices will not support >65k
>> vertices, but most modern devices will support it.  KiwiViewer does a check
>> at runtime to decide whether or not there is support.  Of course, it's
>> possible there is a bug and the runtime check is failing, even though your
>> device supports the gl extension.  What device are you using?  Also, could
>> you try the version of KiwiViewer that is in the Google Play store to see
>> if that works any better?
>>
>> Pat
>>
>> On Wed, Feb 6, 2013 at 10:29 PM, ves <ves at calculoandamios.com> wrote:
>>
>>>
>>>
>>> Hi,
>>>
>>>  I have exported a VTK model to OBJ and I try to view it in Kiwiviewer
>>> (Android Version compiled by me with the source code downloading from
>>> github). I have an error message saying that the file contains more than
>>> the supported  maximum number of points.
>>>
>>>  I would appreciate an explanation about this issue as in the kiwiviwer
>>> mailing list (
>>> http://public.kitware.com/pipermail/kiwiviewer/2011-October/000002.html)
>>> it is stated that the problem is related with OpenGL ES and that is
>>> something that can be solved (in October 2011). Additionally in the
>>> Kiwiviewer example with the point cloud library (
>>> http://vimeo.com/42773717) it is stated that there are more than
>>> 200000 points (in IOS).
>>>
>>>  More specifically I would like to know if this limit is only for
>>> Android, if it is related with the datasheet or it perhaps for each actor
>>> and I can circumvent the limit adding several actors to the scene. If not,
>>> is this size limit to be increased in the next version?
>>>
>>>
>>>
>>> Regards,
>>>
>>>  Carlos
>>>
>>> _______________________________________________
>>> Ves mailing list
>>> Ves at public.kitware.com
>>> http://public.kitware.com/cgi-bin/mailman/listinfo/ves
>>>
>>>
>>
>>
>>
>>
>> _______________________________________________
>> Ves mailing list
>> Ves at public.kitware.com
>> http://public.kitware.com/cgi-bin/mailman/listinfo/ves
>>
>>
>
>
> --
> | Aashish Chaudhary
> | R&D Engineer
> | Kitware Inc.
> | www.kitware.com
>



-- 
| Aashish Chaudhary
| R&D Engineer
| Kitware Inc.
| www.kitware.com
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