[x3d-public] IFS example to fix.

Thu Jan 26 04:09:13 PST 2023

Thanks, I see the view3scene warning was indeed very misleading:

- It said "normal or texture coordinate" (which was supposed to be just an
example, incorrect in this case),
- It never said which list was really too short.

I improved it now, to say:

  X3D: Invalid number of items in an attribute array for shape
":HAnimSiteShape:IndexedFaceSet(DiamondIFS)": Invalid index: 2, but we have
2 items in RGB colors

Please give Jenkins a few hours and then download latest view3dcene
"snapshot" (4.3.0) version from https://castle-engine.io/view3dscene.php to
have the fix.

Regards,
Michalis

W dniu wt., 24.01.2023 o 00:34 John Carlson <yottzumm at gmail.com> napisał(a):

> Thanks for colorPerVertex=‘false’ info!  Perhaps more models need to be
> tested?  I probably copied this from elsewhere.
>
> On Mon, Jan 23, 2023 at 2:23 PM Brutzman, Donald (Don) (CIV) <
> brutzman at nps.edu> wrote:
>
>> Please note that IndexFaceSet colorPerVertex  field has default value
>> TRUE.
>>
>>
>>
>>    -
>>    https://www.web3d.org/x3d/tooltips/X3dTooltips.html#IndexedFaceSet.colorPerVertex
>>    -
>>    https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-DIS/Part01/components/geometry3D.html#IndexedFaceSet
>>
>>
>>
>> So the warning was misdirecting… but there is indeed a problem.  You have
>> six vertices but two colors, and so will need to set colorPerVertex
>> =’false’ to get what you intended (presumably a color on each polygonal
>> face).
>>
>>
>>
>> Scaling up by a hundred then reveals your mystery triangle.
>>
>>
>>
>>
>>
>> all the best, Don
>>
>> --
>>
>> Don Brutzman  Naval Postgraduate School, Code USW/Br
>> brutzman at nps.edu
>>
>> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA
>> +1.831.656.2149
>>
>> X3D graphics, virtual worlds, Navy robotics https://
>> faculty.nps.edu/brutzman
>>
>>
>>
>> *From:* Brutzman, Donald (Don) (CIV) <brutzman at nps.edu>
>> *Sent:* Monday, January 23, 2023 12:08 PM
>> *To:* John Carlson <yottzumm at gmail.com>
>> *Cc:* X3D Graphics public mailing list <x3d-public at web3d.org>; Michalis
>> Kamburelis <michalis.kambi at gmail.com>; Brutzman, Donald (Don) (CIV) <
>> brutzman at nps.edu>
>> *Subject:* RE: [x3d-public] IFS example to fix.
>>
>>
>>
>> When launched in view3dscene am getting the following errors
>> (copied/pasted)
>>
>>
>>
>> 2 warnings:
>>
>> X3D: Invalid number of items in a normal or texture coordinate array for
>> shape "HAnimSiteShape:IndexedFaceSet(DiamondIFS)": Invalid index: 2, but we
>> have 2 items
>>
>> X3D: Invalid number of items in a normal or texture coordinate array for
>> shape "HAnimSiteShape:IndexedFaceSet(DiamondIFS)": Invalid index: 2, but we
>> have 2 items
>>
>> Scene URL: "C:\Users\brutzman.IT160907-UWALPP\Desktop\IFS.x3d".
>>
>> Use "File->View Warnings" menu to view these warnings again.
>>
>>
>>
>> Of note is that there is no HAnimSite node, rather just Shape
>> DEF=’HAnimSiteShape’
>>
>>
>>
>> Likely cause: view3dscene is referring to a normal or texture coordinate
>> array, but there are none provided, which is legal.  Thus these warnings
>> seem to be “false positives” by view3dscene.  Suggest posting an issue
>> there with this test scene; I’ve copied Michalis.
>>
>>
>>
>> John: I used X3D-Edit to launch and render your model in multiple X3D
>> browsers, but nothing visible (scene looks like a 10mm cube from 10m
>> away).  To improve this test, you might add a viewpoint or scale up the
>> geometry  to make successful results obvious.
>>
>>    - <Transform scale='100 100 100'>
>>
>>
>>
>> Presumably you got a gazillion errors in the humanoid version because
>> there were a corresponding gazillion USE=’HAnimSiteShape’ nodes in the
>> original humanoid model.
>>
>>
>>
>> The actual X3D content you sent is
>>
>>
>>
>> <Shape DEF='HAnimSiteShape
>> <https://savage.nps.edu/X3dValidator/validate#HAnimSiteShape>'>
>>
>> <IndexedFaceSet DEF='DiamondIFS
>> <https://savage.nps.edu/X3dValidator/validate#DiamondIFS>' creaseAngle='
>> 0.5' solid='false' coordIndex='0 1 2 -1 0 2 3 -1 0 3 4 -1 0 4 1 -1 5 2 1
>> -1 5 3 2 -1 5 4 3 -1 5 1 4 -1'>
>>
>> <ColorRGBA DEF='HAnimSiteColorRGBA
>> <https://savage.nps.edu/X3dValidator/validate#HAnimSiteColorRGBA>' color
>> ='1 1 0 1 1 1 0 0.1'/>
>> <Coordinate point='0 0.01 0 -0.01 0 0 0 0 0.01 0.01 0 0 0 0 -0.01 0
>> -0.01 0'/>
>>
>> </IndexedFaceSet>
>> <Appearance>
>>
>> <Material diffuseColor='1 1 0' transparency='0.3'/>
>>
>> </Appearance>
>>
>> </Shape>
>>
>>
>>
>> X3D Validator in X3D-Edit and online gets same result, no surprises found:
>>
>>
>>
>> --------- X3D Validator checks commenced for IFS.x3d ---------
>>
>>
>>
>> Performing well-formed XML check...
>>
>> Checking file:/C:/Users/brutzman.IT160907-UWALPP/Desktop/IFS.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:/C:/Users/brutzman.IT160907-UWALPP/Desktop/IFS.x3d...
>>
>> XML DTD validation: pass
>>
>>
>>
>> Performing X3D schema validation...
>>
>> Checking file:/C:/Users/brutzman.IT160907-UWALPP/Desktop/IFS.x3d...
>>
>> XML schema validation: pass
>>
>>
>>
>> Performing X3D regular expression (regex) values check...
>>
>> X3D regex check: complete
>>
>>
>>
>> Performing X3dToX3dvClassicVrmlEncoding.xslt conversion check...
>>
>> [info] <X3D profile='Immersive'> differs from profile='Interchange'
>> computed for this model
>>
>> [warning] File name doesn't match for <meta name='identifier' content='
>> http://www.web3d.org/x3d/content/examples/HumanoidAnimation/IFS.x3d'/>
>> and <meta name='title' content='JohnIFS.x3d'/>
>>
>>
>>
>> Performing X3D Schematron check...
>>
>> X3D version 4.0 is approved by Web3D Consortium and focused on
>> interoperability with HTML, glTF Physically Based Rendering (PBR) and Web
>> Audio API, undergoing dinal review by ISO national bodies in 2022. [/X3D,
>> diagnostic]
>>
>> X3D/head/meta title (i.e. filename 'JohnIFS.x3d') is expected at end of
>> identifier (url) value [/X3D/head, warning]
>>
>>
>>
>> --------- X3D Validator checks complete for IFS.x3d ---------
>>
>> --------- X3D Validator online at https://savage.nps.edu/X3dValidator
>> ---------
>>
>>
>>
>> all the best, Don
>>
>> --
>>
>> Don Brutzman  Naval Postgraduate School, Code USW/Br
>> brutzman at nps.edu
>>
>> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA
>> +1.831.656.2149
>>
>> X3D graphics, virtual worlds, Navy robotics https://
>> faculty.nps.edu/brutzman
>>
>>
>>
>> *From:* x3d-public <x3d-public-bounces at web3d.org> *On Behalf Of *John
>> Carlson
>> *Sent:* Wednesday, January 18, 2023 3:54 AM
>> *To:* X3D Graphics public mailing list <x3d-public at web3d.org>
>> *Subject:* Re: [x3d-public] IFS example to fix.
>>
>>
>>
>> Here is a small example that shows the potential issue, attached.
>>
>>
>>
>> view3dscene reports errors, Schematron does not.  I will attempt JSON
>> next.
>>
>>
>>
>> John
>>
>>
>>
>> On Wed, Jan 18, 2023 at 5:41 AM John Carlson <yottzumm at gmail.com> wrote:
>>
>> This may interest people working with IFS in *some* HAnim examples,
>> particularly mine!
>>
>>
>>
>> JOhn
>>
>> ---------- Forwarded message ---------
>> From: *John Carlson* <yottzumm at gmail.com>
>> Date: Wed, Jan 18, 2023 at 5:22 AM
>> Subject: IFS example to fix.
>> To: Joe D Williams <joedwil at earthlink.net>
>>
>>
>>
>>     <IndexedFaceSet DEF='DiamondIFS' creaseAngle='0.5' solid='false'
>> coordIndex='0 1 2 -1 0 2 3 -1 0 3 4 -1 0 4 1 -1 5 2 1 -1 5 3 2 -1 5 4 3 -1
>> 5 1 4 -1'>
>>
>>      <ColorRGBA DEF='HAnimSiteColorRGBA' color='1 1 0 1 1 1 0 0.1'/>
>>
>>      <Coordinate point='0 0.01 0 -0.01 0 0 0 0 0.01 0.01 0 0 0 0 -0.01 0
>> -0.01 0'/>
>>
>>     </IndexedFaceSet>
>>
>>
>>
>> The way I'm reading above, the IFS has 6 coordinates and 2 colors.  There
>> should be more colors, correct?  view3dscene detected this.  I'll look up
>> the IFS spec.
>>
>>
>>
>> Thanks!
>>
>>
>>
>> John
>>
>>
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