[x3d-public] x3d-public Digest, Vol 138, Issue 19

Sat Sep 5 15:32:50 PDT 2020

Konstantin,

> https://doc.x3dom.org/tutorials/basics/hello/HelloX3DOM.html

This is an X3DOM page -- it does not belong to the Web3D Consortium. I 
had to go all of the way to the root path to find the copyright notice 
((C) by Fraunhofer-Gesellschaft). In the US the lack of any terms mean 
the most restrictive apply ("All rights reserved"), other locations may 
differ.

Fraunhofer specifies the usage rights on the page 
https://www.x3dom.org/legals/. You will need to contract Johannes Behr 
(link to email on page) to get an extension or clarification of usage.

Leonard Daly

> Hello.
> Thanks, Leonard.
> Here is the page, but  without bgimage.
>
>
> суббота, 5 сентября 2020 г. пользователь <x3d-public-request at web3d.org 
> <mailto:x3d-public-request at web3d.org>> написал:
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> >
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> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of x3d-public digest..."
> >
> >
> > Today's Topics:
> >
> >    1. question on page use (Konstantin Smirnov)
> >    2. Re: question on page use (Leonard Daly)
> >    3. Re: Specification editors mantis issues, PointProperties
> >       (Andreas Plesch)
> >    4. Re: question on page use (J. Scheurritch)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Sat, 5 Sep 2020 00:09:25 +0300
> > From: Konstantin Smirnov <konstantin.e.smirnov at gmail.com 
> <mailto:konstantin.e.smirnov at gmail.com>>
> > To: x3d-public at web3d.org <mailto:x3d-public at web3d.org>
> > Subject: [x3d-public] question on page use
> > Message-ID:
> >         
> <CAD1qDjQa9koc1oG+8gQ4wE4M96JpOXY-ioD=bLDicHkPWBLCnw at mail.gmail.com 
> <mailto:bLDicHkPWBLCnw at mail.gmail.com>>
> > Content-Type: text/plain; charset="utf-8"
> >
> > Hi.
> > Can I use screenshots of web 3d example page for my projects?
> > I mean my first x3dom page with three objects.
> >
> > Konstantin
> > -------------- next part --------------
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> >
> > ------------------------------
> >
> > Message: 2
> > Date: Fri, 4 Sep 2020 17:56:37 -0700
> > From: Leonard Daly <Leonard.Daly at realism.com 
> <mailto:Leonard.Daly at realism.com>>
> > To: x3d-public at web3d.org <mailto:x3d-public at web3d.org>
> > Subject: Re: [x3d-public] question on page use
> > Message-ID: <3064a13e-ec9c-749b-9acd-9fcd9d93705b at realism.com 
> <mailto:3064a13e-ec9c-749b-9acd-9fcd9d93705b at realism.com>>
> > Content-Type: text/plain; charset="utf-8"; Format="flowed"
> >
> > Hi Konstantin,
> >
> > Thank you for asking.
> >
> > Please see the copyright notice usually at the bottom of the page. If
> > the associated license is blank or states "All rights reserved", please
> > send a message using the contact form with the URLs of the pages in
> > question identifying the specific region of the page you wish to use.
> >
> > If the license allows reuse (e.g., Creative Commons, CC-BY, etc.), then
> > reuse is allowed when you follow the license. The reference is either
> > explicitly listed at the bottom of the page(s) in question, or if not
> > stated:
> >
> > (c) 2020, Web3D Consortium. Licensed as <whatever it was stated>. <URL
> > to page>
> >
> >
> > If the explanation above doesn't answer your question, please feel free
> > to reply here and include the URL of the page(s) in question.
> >
> > Leonard Daly
> > Webmaster, Web3D Consortium
> >
> >
> >
> >> Hi.
> >> Can I use screenshots of web 3d example page for my projects?
> >> I mean my first x3dom page with three objects.
> >>
> >> Konstantin
> >>
> >> _______________________________________________
> >> x3d-public mailing list
> >> x3d-public at web3d.org <mailto:x3d-public at web3d.org>
> >> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
> >
> >
> > --
> > *Leonard Daly*
> > 3D Systems & Cloud Consultant
> > LA ACM SIGGRAPH Past Chair
> > President, Daly Realism - /Creating the Future/
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> >
> > ------------------------------
> >
> > Message: 3
> > Date: Fri, 4 Sep 2020 21:16:07 -0400
> > From: Andreas Plesch <andreasplesch at gmail.com 
> <mailto:andreasplesch at gmail.com>>
> > To: X3D Graphics public mailing list <x3d-public at web3d.org 
> <mailto:x3d-public at web3d.org>>
> > Subject: Re: [x3d-public] Specification editors mantis issues,
> >         PointProperties
> > Message-ID:
> >         
> <CAKdk67uWaZSCb5NG0HFyn3EL9m6bBD_ZzEVX4GWr7OTDDSn00w at mail.gmail.com 
> <mailto:CAKdk67uWaZSCb5NG0HFyn3EL9m6bBD_ZzEVX4GWr7OTDDSn00w at mail.gmail.com>>
> > Content-Type: text/plain; charset="UTF-8"
> >
> > Working next on sprite texturing for PointProperties, I found it
> > pretty straightforward to start to support textures of any kind since
> > the shader or shader generation needs to deal with those already. The
> > only difference to other geometry is to use gl_PointCoord as tex.
> > coord, rather than provided tex. coords. This is a simple
> > intensity-alpha 3x3 PixelTexture mixed with the Material color:
> >
> > 
> https://raw.githack.com/andreasplesch/x3dom/PointSetNormals/test/regression-suite/test/cases/points/pointset_archie_normal.html
> >
> > CSS or PBR textures with normal and other nice maps should also work,
> > for example.
> >
> > It looks like it is time to test a bit more and then merge with the
> > x3dom dev. branch.
> >
> > Here is another test with 1.5 million points, adopted from
> > http://metagrid2.sv.vt.edu/~yansh93/catawba_blinn.html
> >
> > 
> https://raw.githack.com/andreasplesch/x3dom/PointSetNormals/test/regression-suite/test/cases/points/catawba50.html
> >
> > Lidar surveys easily generate large point clouds like this. The
> > PointSet is actually much subsampled. I also discovered that the
> > original binary data has some interesting tail which may or may not be
> > junk from processing.
> >
> > It was difficult to generate and deal with a very large xml file, so I
> > had to put the data in separate files and load via js. The final scene
> > is still xml (actually DOM) in memory, generated with a few lines of
> > js DOM manipulation.
> >
> > x3dom has BufferGeometry for binary geometry data (used for glTF)
> > which becomes really necessary for these kind of datasets. As far as I
> > remember x3dv4 will not have an equivalent. Maybe I should check how
> > hard it would be to support PointProperties for BufferGeometry (which
> > can be points).
> >
> > The test shows that vertex colors also work with shading and
> > PointProperties, after mixing in a white diffuseColor. I think this is
> > as expected since vertex colors used to be emissive. Actually, I am
> > changing my mind. I think vertex colors should be treated as diffuse
> > color (or base color for PBR) if normals are present. Let's see how
> > this looks in the shader generation for x3dom.
> >
> > -Andreas
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Andreas
> >
> > On Thu, Sep 3, 2020 at 6:06 PM Andreas Plesch 
> <andreasplesch at gmail.com <mailto:andreasplesch at gmail.com>> wrote:
> >>
> >> Since both x_ite and
> >>
> >> http://metagrid2.sv.vt.edu/~yansh93/archimedes_pp_normal.html
> >>
> >> use circles for point rendering, this x3dom draft implementation now
> >> also uses circles:
> >>
> >> 
> https://raw.githack.com/andreasplesch/x3dom/PointSetNormals/test/regression-suite/test/cases/points/pointset_archie_normal.html
> >>
> >> Circles are only used for untextured points. For textured points, eg.
> >> sprites, the masking for circles will be omitted.
> >>
> >> Should the spec. require circles for untextured points ? They look
> >> better but perhaps such a requirement is too opinionated.
> >>
> >> -Andreas
> >>
> >> On Thu, Sep 3, 2020 at 4:33 PM Andreas Plesch 
> <andreasplesch at gmail.com <mailto:andreasplesch at gmail.com>> wrote:
> >> >
> >> > I updated the implementation and the scene to reflect the latest
> >> > changes in the spec. draft:
> >> >
> >> > 
> https://raw.githack.com/andreasplesch/x3dom/PointSetNormals/test/regression-suite/test/cases/points/pointset_archie_normal.html
> >> >
> >> > There are no visual differences.
> >> >
> >> > -Andreas
> >> >
> >> > On Thu, Sep 3, 2020 at 4:08 PM Andreas Plesch 
> <andreasplesch at gmail.com <mailto:andreasplesch at gmail.com>> wrote:
> >> > >
> >> > > I had some time to refocus on PointProperties and found this 
> note on
> >> > > spec. changes:
> >> > >
> >> > > > Date: Mon, 31 Aug 2020 10:33:40 -0700
> >> > > > From: Don Brutzman <brutzman at nps.edu <mailto:brutzman at nps.edu>>
> >> > > > To: Michalis Kamburelis <michalis.kambi at gmail.com 
> <mailto:michalis.kambi at gmail.com>>,
> >> > > >         "puk at igraphics.com <mailto:puk at igraphics.com>" 
> <puk at igraphics.com <mailto:puk at igraphics.com>>
> >> > > > Cc: X3D Graphics public mailing list <x3d-public at web3d.org 
> <mailto:x3d-public at web3d.org>>
> >> > > > Subject: Re: [x3d-public] Specification editors mantis 
> issues: PBR
> >> > > >         review
> >> > > > ..
> >> > > > On 8/24/2020 12:48 PM, Michalis Kamburelis wrote:
> >> > > > >
> >> > > > > [...]
> >> > > > > Answers are inline below.
> >> > > > >
> >> > > > > Don Brutzman <brutzman at nps.edu <mailto:brutzman at nps.edu> 
> <mailto:brutzman at nps.edu <mailto:brutzman at nps.edu>>> wrote:
> >> > > > >
> >> > > > >     ---
> >> > > > >     2. Spec questions.
> >> > > > >
> >> > > > >     a. see new inquiries today regarding PointProperties 
> from Andreas and Holger.? Let's continue/contribute on that thread please.
> >> > > > >
> >> > > > > I do not see input from Holger in the PointProperties 
> thread. If there's some communication off-list, maybe because someone 
> forgot to use "Reply All", please resend it to the mailing list :)
> >> > > >
> >> > > > Separate thread found at
> >> > > >
> >> > > > [1] [x3d-public] PointProperties revisited
> >> > > > 
> https://web3d.org/pipermail/x3d-public_web3d.org/2020-August/013447.html
> >> > > >
> >> > > > We agreed to remove 'colorMode' and updated both spec & 
> Mantis 1252.
> >> > > >
> >> > > > We replaced final 2 paragraphs in 11.4.11 PointSet with
> >> > > >
> >> > > > "If the normal field of the PointSet node contains normal 
> vectors, then points are rendered using the same lighting equations as 
> the other geometry and can be lit. If the normal vectors are not 
> provided, the points are rendered following the "unlit" lighting 
> equations. If the PointSet is used with the Material node, and the 
> normal vectors of points are not provided, the points shall be 
> rendered as unlit, using the emissiveColor field of the Material node. 
> In both cases, the points look can be customized using textures, 
> Color, ColorRGBA, and UnlitMaterial nodes."
> >> > >
> >> > > That sounds great, and should cover all situations.
> >> > >
> >> > > I developed a first implementation of PointProperties with normals,
> >> > > ignoring textures for now:
> >> > >
> >> > > 
> https://raw.githack.com/andreasplesch/x3dom/PointSetNormals/test/regression-suite/test/cases/points/pointset_archie_normal.html
> >> > >
> >> > > This is the archie example modified to use a diffuseColor 
> material for
> >> > > shading with normals, and a non-default attenuation factor of 
> "1 1 0",
> >> > > eg. with a linear distance dependence.
> >> > >
> >> > > The point size attenuation looks similar to how x_ite is scaling
> >> > > (x_ite ignores the normals currently), so that is good sign. 
> Here is
> >> > > the x3d xml version:
> >> > >
> >> > > 
> https://raw.githubusercontent.com/andreasplesch/x3dom/PointSetNormals/test/regression-suite/test/cases/points/pointset_archie_normal.x3d
> >> > >
> >> > > freeWrl 4.7 does not seem to do the size attenuation with distance,
> >> > > not sure if it is not implemented or another interpretation.
> >> > >
> >> > > Oh, I see that this draft
> >> > >
> >> > > 
> https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD2/Part01/components/shape.html#PointProperties
> >> > >
> >> > > changed the attenuation field from MFFloat to SFVec3f, and the name
> >> > > from pointSizeAttenuation to just attenuation. Should be a 
> quick fix.
> >> > >
> >> > > In the same spirit, I would also suggest renaming 
> "pointSizeMinValue"
> >> > > to "pointSizeMin" or just "sizeMin" (we are in _Point_Properties,
> >> > > after all), and "pointSizeMaxValue" accordingly.
> >> > >
> >> > > -Andreas
> >> > >
> >> > > --
> >> > > Andreas Plesch
> >> > > Waltham, MA 02453
> >> >
> >> >
> >> >
> >> > --
> >> > Andreas Plesch
> >> > Waltham, MA 02453
> >>
> >>
> >>
> >> --
> >> Andreas Plesch
> >> Waltham, MA 02453
> >
> >
> >
> > --
> > Andreas Plesch
> > Waltham, MA 02453
> >
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Sat, 5 Sep 2020 03:30:14 +0200
> > From: "J. Scheurritch" <mufti11 at web.de <mailto:mufti11 at web.de>>
> > To: x3d-public at web3d.org <mailto:x3d-public at web3d.org>
> > Subject: Re: [x3d-public] question on page use
> > Message-ID: <b1670278-d4ff-60be-eb73-fece8ed27551 at web.de 
> <mailto:b1670278-d4ff-60be-eb73-fece8ed27551 at web.de>>
> > Content-Type: text/plain; charset=utf-8
> >
> >
> >> Please see the copyright notice usually at the bottom of the page.
> >
> > Often, the coyight information is in the WorldINFO node, like here
> >
> > 
> https://www.web3d.org/x3d/content/examples/Basic/HumanoidAnimation/NancyPrototypesIndex.html
> >
> > so long
> > MUFTI
> >
> >
> >
> >
> > ------------------------------
> >
> > Subject: Digest Footer
> >
> > _______________________________________________
> > x3d-public mailing list
> > x3d-public at web3d.org <mailto:x3d-public at web3d.org>
> > http://web3d.org/mailman/listinfo/x3d-public_web3d.org
> >
> >
> > ------------------------------
> >
> > End of x3d-public Digest, Vol 138, Issue 19
> > *******************************************
> >
>
> _______________________________________________
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-- 
*Leonard Daly*
3D Systems & Cloud Consultant
LA ACM SIGGRAPH Past Chair
President, Daly Realism - /Creating the Future/
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