[x3d-public] How is a shader chosen in X_ITE? Looks like it works (at least at first, and then disappears?)

[John Carlson]

Handy shortcut for X3DJSONLD devs (install x3dvalidate first): 
X3DJSONLD/src/main/schema$ node ~/x3dvalidate/x3dvalidate.js 
../data/bubbles.json

Loading schema
Parsing schema
Adding schema
Schema 4.0 added
Schema 4.0 compiled
Success reading ../data/bubbles.json

Starting X3D-Edit 4.0...

Opening bubbles.x3d...

Clicking the checkbox...

Fixed one error...

Clicking the checkbox again...

--------- X3D Validator checks commenced for bubbles.x3d ---------

Performing well-formed XML check...
Checking file:/home/coderextreme/X3DJSONLD/src/main/data/bubbles.x3d...
Well-formed XML check: pass

Performing DOCTYPE check...
[X3dDoctypeChecker] success: valid XML declaration 
found.[X3dDoctypeChecker] success: final X3D 4.0 DOCTYPE found.

Performing DTD validation...
Checking file:/home/coderextreme/X3DJSONLD/src/main/data/bubbles.x3d...
XML DTD validation: pass

Performing X3D schema validation...
Checking file:/home/coderextreme/X3DJSONLD/src/main/data/bubbles.x3d...
XML schema validation: pass

Performing X3D regular expression (regex) values check...

Performing X3dToClassicVrml.xslt conversion check...

Performing X3D Schematron check...
X3D version 4.0 is approved by Web3D Consortium and focused on 
interoperabiliity with HTML, glTF Physically Based Rendering (PBR) and 
Web Audio API, undergoing review by ISO national bodies in 2021. [/X3D, 
diagnostic]

--------- X3D Validator checks complete for bubbles.x3d ---------
--------- X3D Validator online at https://savage.nps.edu/X3dValidator 
--------- *(Definitely *offline* here!  Thanks to the team that put 
X3D-Edit together, we have a backup!)
*

*
*

Removed "Texture" from containerFields. New file attached.  No 
difference seen yet.  Sometimes the scene pops up then disappears, and 
sometimes it doesn't.

Looking at logs may tell the story. I haven't looked recently.

Note: x3dom shaders have been commented out locally, but file may still 
be cached.

*Note:  X3D JSON validator is up and running for X3DV4! * 
https://coderextreme.net/X3DJSONLD/src/main/html/validator.html

Looks like savage.nps.edu website is down?

John

*
*

On 7/3/21 10:49 PM, John Carlson wrote:
> X_ITE has disappearing problems with
>
> https://coderextreme.net/X3DJSONLD/src/main/html/bubbles.html
>
> The included ../data/bubbles.x3d should be cross-platform--potentially 
> any X3D browser, but only X3DOM and X_ITE are supported.  Please try 
> yours and contribute fixes!
>
> Problems: scene and geometry show up initially, then disappear, or 
> don't appear at all. I will try removing X3DOM shaders to see what 
> happens.
>
> There's a small "flower" in the middle of the bubble in Chromium on 
> Linux, which seems to indicated that a fragment shader got invoked 
> which is returns white frag_color. If associated vertex shader doesn't 
> load, I don't think the fragment shader shouldn't, IMO, but others can 
> weigh in.  Others can report seeing this?
>
> I will try to go over the shaders with a fine-tooth comb tomorrow.
>
> I'll also run the XML file through validators!
>
> John
>
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