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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l1 level1 lfo2'>Limited to [0,1]? I’ll check the docs.<o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Yes, that is the scale input. From the initial position, theDisplacer moves the specified vertex according to the 100 percent displacement set in the values.</p><p class=MsoNormal>Joe</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10</p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:yottzumm@gmail.com">John Carlson</a><br><b>Sent: </b>Sunday, June 7, 2020 1:14 PM<br><b>To: </b><a href="mailto:joedwil@earthlink.net">Joseph D Williams</a><br><b>Cc: </b><a href="mailto:x3d-public@web3d.org">X3D Graphics public mailing list</a><br><b>Subject: </b>Re: [x3d-public] Visualizing Math in X3D</p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Limited to [0,1]? I’ll check the docs.</p></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Sun, Jun 7, 2020 at 3:10 PM John Carlson <<a href="mailto:yottzumm@gmail.com">yottzumm@gmail.com</a>> wrote:</p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal>Not trying to change the number of points yet. Thanks for the info.</p></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Sun, Jun 7, 2020 at 7:56 AM Joseph D Williams <<a href="mailto:joedwil@earthlink.net" target="_blank">joedwil@earthlink.net</a>> wrote:</p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'>What people don’t understand is I’m moving every vertex in the mesh</li></ul><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hey John, vrml and x3d hid that one in the hanim Displacer node. </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>If you can’t do a morph you need with that, please tell. Just don’t try to change the number of points. </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Joe</p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>From: </b><a href="mailto:yottzumm@gmail.com" target="_blank">John Carlson</a><br><b>Sent: </b>Sunday, June 7, 2020 12:55 AM<br><b>To: </b><a href="mailto:x3d-public@web3d.org" target="_blank">X3D Graphics public mailing list</a><br><b>Subject: </b>[x3d-public] Visualizing Math in X3D</p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Don, I am just trying to make the standard better for visualizing mathematical stuff, I pretty much majored in mathematical visualization in college. There’s a lot of stuff in the standard for visualizing physics, both rigid body and particle systems. Instead of applying math to physics, I am trying to apply physics to math.</p></div></div></div></div><div><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I realize that visualizing math does not really have a vocal champion in the X3D community, perhaps Andy Yeh is still around.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I imagine because Mathematica made great strides in the math community.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Mathematica still requires a Pro edition running on the cloud to even attempt my surfaces. In X3D, they pop right up, even multiple “transparent” animated objects. Yay X3D!</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>PlayCanvas has a *very* slow start up compared to X3D.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I would like to continue using X3D over PlayCanvas and others. The key remains don’t use the network for mesh, positions, or normals, generate them on the web client. My knowledge of geometry shaders indicates I still need to compute a grid on a sphere, and the geometry shader can enhance that.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>That is why I am seeking to have the browser generate the mesh for at least one topology, let’s call it a sphere, but it’s the topology of the equation that matters. I can already position and compute normals of the surfaces. I could probably compute a mesh as sphere topology in an initialize method if that’s still allowed. I am not sure about X_ITE. I do not want to generate coordinates in X3D nodes. Shaders are fine for that. I am not sure I can confidently generate a mesh without defects.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Low bandwidth (think 4G LTE) is preferred.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>But you can see my Frustration compared to Mathematica users who just type in a small set of equations. Not my lucky day.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I do not want geometry or perfect math in X3D. I want a topological 0-hole enclosed surface, subdivided to adequate resolution.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I will look further into primitive quality.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I will see if my graphics card supports raytracing.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>John</p></div></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Sun, Jun 7, 2020 at 1:37 AM John Carlson <<a href="mailto:yottzumm@gmail.com" target="_blank">yottzumm@gmail.com</a>> wrote:</p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Here’s the best looking version of what I like to do:</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="https://playcanv.as/p/wQgQBgkE/" target="_blank">https://playcanv.as/p/wQgQBgkE/</a></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Ideally, I could send a math equation in MathML by putting MathML into the geometry node, and PBR or material like glass or diamond</p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Sun, Jun 7, 2020 at 1:22 AM John Carlson <<a href="mailto:yottzumm@gmail.com" target="_blank">yottzumm@gmail.com</a>> wrote:</p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Previous subject: morphing comparison in X3D and glTF:</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="http://web3d.org/pipermail/x3d-public_web3d.org/2017-December/008037.html" target="_blank">http://web3d.org/pipermail/x3d-public_web3d.org/2017-December/008037.html</a></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I would say morphing is doable in X3DOM, but perhaps not other browsers. The most conformant approach would probably be an IFS where the position and normal are computed in a shader and the mesh is computed in user code, or provided statically.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>My question becomes, Why can’t we provide at least provide for common topologies? 1 surface and 0 edges (sphere), 2 surface (cone), 3 surface (cylinder), 1 surface and one hole(torus), and consider a higher number of holes and surfaces. I think we have a isocahedron at least...but very slow to open.</p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>It seems like I should be using blender to create X3D.</p></div></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>John</p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Sun, Jun 7, 2020 at 12:33 AM John Carlson <<a href="mailto:yottzumm@gmail.com" target="_blank">yottzumm@gmail.com</a>> wrote:</p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>What people don’t understand is I’m moving every vertex in the mesh with respect to the mesh. Kind of like particle physics or morphing would be a better description. I have example videos.</p></div></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>John</p></div></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Sat, Jun 6, 2020 at 11:01 PM J. Scheurich <<a href="mailto:mufti11@web.de" target="_blank">mufti11@web.de</a>> wrote:</p></div></div></div></blockquote></div></div></blockquote></div></div></blockquote></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:19.2pt'><br>> 1. User provides a mesh. I have done this before. It is too slow for<br>> a 100x100 IFS (20000 polygons I think).<br>It depend on your graphics card and driver.<br>For the rasberry PI and some other systems i meshured the performace in<br>3000 Polygon-Steps<br>(1 NURBS-Object with uv/Tessellation 0)<br><br><a href="https://wdune.ourproject.org/docs/usage_docs/white_dune_rasberry_pi.odp" target="_blank">https://wdune.ourproject.org/docs/usage_docs/white_dune_rasberry_pi.odp</a><br><br>(in german but page 5 is a readable table).<br>A raspberry PI (shared Memory graphics card) can do 30000 polygons, a<br>Intel HD 3000 shared<br>memory graphics card (this is a common card on older "office"-laptops)<br>can do 33000 polygons.<br>There are very much faster graphic cards on "game laptops"....<br>The fastest graphics card on this list is a very slow (processor)<br>Mac-book....<br><br>The only systems that are not able to do 20000 polygons are a 8 year old<br>netbook and a<br>ARM chromebook without a 3D driver.<br><br>so long<br>MUFTI<br><br>_______________________________________________<br>x3d-public mailing list<br><a href="mailto:x3d-public@web3d.org" target="_blank">x3d-public@web3d.org</a><br><a href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org" target="_blank">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a></p></div></div></blockquote></div></div></blockquote></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:9.6pt'> </p><p class=MsoNormal><o:p> </o:p></p></div></body></html>