[x3d-public] X3DOM vs X_ITE? Browser bake-off, round 1

[John Carlson]

Okay. I tried setting the magnfiicationFilter to FASTEST, then
NEAREST_PIXEL (for each .x3d file), and the latter had the best results,
but there's still some things to be desired.

Since <Environment> was not included in .json, iI switched to using .x3d.
X_ITE had no issues, but I'm guessing other validation tools will have
issues, I'm not sure.
'
These two still have significant differences between X3DOM and X_ITE.  I
haven't tested other browsers.


   - indexedfaceset_pixeltexture_plus.x3d
   - indexedfaceset_pixeltexture_whole.x3d


are you saying put a magnficationFIlter as FASTEST for one, and
NEAREST_PIXEL on the other to make them match?

Thanks,

John

On Thu, Aug 7, 2025 at 9:05 PM Andreas Plesch <andreasplesch at gmail.com>
wrote:

> Hi John,
>
> after some attempts, I could get the pixeltexture examples to load in both
> viewers.
>
> The difference is due to the 'DEFAULT' value of magnificationFilter in
> TextureProperties:
> https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/components/texturing.html#TextureProperties
>
> x3dom has the webgl default (I think 'FASTEST') and x_ite probably has
> "NEAREST_PIXEL" which was probably the traditional default.
>
> For a more specific prescription of desired rendering an author has to
> explicitly set magnificationFilter to a value other than 'DEFAULT'.
>
> Cheers, -Andreas
>
> PS: for better color correspondence, switch off gamma correction in x3dom
> with
>
> https://doc.x3dom.org/tutorials/lighting/gamma/index.html
>
> eg.,
>
>     <Environment id="gamma" gammaCorrectionDefault="none"></Environment>
>
> Cheers, -Andreas
>
> On Thu, Aug 7, 2025 at 9:16 PM John Carlson <yottzumm at gmail.com> wrote:
>
>> It occurred to me that you can pick up data files here:
>> https://coderextreme.net/X3DJSONLD/src/main/data/
>>
>> Mouse over a link to get the filename, I think.
>>
>> I know it’s clunky.
>>
>> Thanks,
>>
>> John
>>
>> On Thu, Aug 7, 2025 at 7:59 PM John Carlson <yottzumm at gmail.com> wrote:
>>
>>> Please look at these examples on
>>> https://coderextreme.net/X3DJSONLD/src/main/html/main_viewer.html under
>>> NavigationInfo type menu at right.  There’s a difference between X3DOM and
>>> X_ITE, but I don’t know which is correct yet.  If needed, I can track down
>>> the .x3d files.  They’re in this folder which is huge:
>>> https://github.com/coderextreme/X3DJSONLD/tree/master/src/main/data
>>>
>>>    -
>>>    - indexedfaceset_pixeltexture_entire.json
>>>    - indexedfaceset_pixeltexture_part.json
>>>    - indexedfaceset_pixeltexture_plus.json
>>>    - indexedfaceset_pixeltexture_whole.json
>>>
>>>
>>> Thanks,
>>>
>>> John
>>>
>>> P.S.: if all else fails, I will attach them.
>>>
>>
>
> --
> Andreas Plesch
> Waltham, MA 02453
>
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