[x3d-public] IFS example to fix.

Mon Jan 23 15:33:55 PST 2023

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
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://web3d.org/pipermail/x3d-public_web3d.org/attachments/20230123/e7481626/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.png
Type: image/png
Size: 47405 bytes
Desc: not available
URL: <http://web3d.org/pipermail/x3d-public_web3d.org/attachments/20230123/e7481626/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 429890 bytes
Desc: not available
URL: <http://web3d.org/pipermail/x3d-public_web3d.org/attachments/20230123/e7481626/attachment-0003.png>