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

[Andreas Plesch]

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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