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<div class="moz-cite-prefix">This is possibly not a bug. The
behavior is specifically described in the X3D specification
(<a class="moz-txt-link-freetext" href="http://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/navigation.html#X3DViewpointNode">http://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/navigation.html#X3DViewpointNode</a>,
sections e&f).<br>
<br>
When changing viewpoints, the relative offset of position and
orientation is retained and applied to the new viewpoint (some of
the time). A lot appears to depend on how the new Viewpoint came
to be the active one.<br>
<br>
Reading through the specification, it does not seem to be
particularly clear; even though I participated in the discussion
that developed this language. I believe that this needs more
clearly written. I have submitted a comment against the
specification to improve this.<br>
<br>
<br>
Leonard Daly<br>
<br>
<br>
<br>
<br>
</div>
<blockquote
cite="mid:CAMMzzuqcaQG8j9vvru=HYbEa_JnODKr+nOEruE7rVRBh3761Vg@mail.gmail.com"
type="cite">
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<div>
<div>Hi,<br>
</div>
I can reproduce this with both examples with this
method:<br>
<br>
</div>
1. Rotate object<br>
</div>
2. Click as fast you can different viewpoints (continue some
time)<br>
<br>
</div>
Soon viewpoints are behaving badly (front is not front etc.).
<br>
<br>
</div>
<div>Regards,<br>
</div>
<div>Ari<br>
</div>
<div><br>
</div>
Chromium, Chrome, Fifefox (Linux)<br>
<div>
<div>
<div>
<div>
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<div>
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<div>
<div class="gmail_extra"><br clear="all">
<div>
<div class="gmail_signature">Sent from my
Debian.<br>
<a moz-do-not-send="true"
href="http://www.opendimension.org/"
target="_blank">http://www.opendimension.org/</a></div>
</div>
<br>
<div class="gmail_quote">2015-12-02 14:22
GMT+02:00 Chris Ratcliffe <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:chris@theguild.tv"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:chris@theguild.tv">chris@theguild.tv</a></a>></span>:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
<div dir="ltr">
<div>
<div>Annoyingly, it seems to be an
intermittent problem.<br>
</div>
I have tried in Chrome and Firefox and
often get this problem.<br>
</div>
This example from the X3dom blog seems
to be a good example of the "drift"<br>
<br>
<div>
<div>
<div>
<div><a moz-do-not-send="true"
href="http://konfigurator.3dbetrieb.de/?b=x3d"
target="_blank">http://konfigurator.3dbetrieb.de/?b=x3d</a><br>
<br>
</div>
<div>If that looks fine to you,
maybe It's some wierd local
thing for me..<br>
</div>
<div><br>
</div>
<div>(CONTROLS:
Perspektive=Perspective /
Vorne=Front / Seite=Side /
Oben-Top)<br>
</div>
</div>
</div>
</div>
</div>
<div class="gmail_extra"><br clear="all">
<div>
<div>
<div dir="ltr">
<p
style="font-family:Helvetica,Arial,sans-serif;font-size:10px"><a
moz-do-not-send="true"
href="http://www.theguild.tv"
target="_blank"><img
moz-do-not-send="true"
alt="theguild" border="0"></a></p>
<p
style="font-family:Helvetica,Arial,sans-serif;font-size:10px;line-height:11px;color:#999"><span
style="font-weight:bold">Chris
Ratcliffe</span>
<span>/</span> <span
style="color:#999">Animation /
Graphics / Creative Code</span><br>
<span style="color:#999">44 (0)
7973 299 138</span><span> /</span>
<a moz-do-not-send="true"
href="mailto:chris@theguild.tv"
style="color:#dda200"
target="_blank">chris@theguild.tv</a></p>
<p
style="font-family:Helvetica,Arial,sans-serif;font-size:10px;line-height:11px"><span
style="font-weight:bold;color:#999">THE GUILD TV LTD / </span><a
moz-do-not-send="true"
href="http://www.theguild.tv"
style="color:#dda200"
target="_blank"><a class="moz-txt-link-freetext" href="http://www.theguild.tv">http://www.theguild.tv</a></a></p>
</div>
</div>
</div>
<div>
<div class="h5">
<br>
<div class="gmail_quote">On 2
December 2015 at 11:48, Roy
Walmsley <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:roy.walmsley@ntlworld.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:roy.walmsley@ntlworld.com">roy.walmsley@ntlworld.com</a></a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div link="blue" vlink="purple"
lang="EN-GB">
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hi
Chris,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I
checked your
observations below,
using the WaterFox
browser on a 64-bit
Windows 10 system. I
used your link below to
open the page and then
chose the “Display
example HTML file” from
the bottom of the page.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I
tried looking at all
four views, selecting
each one and rotating
the reindeer with the
mouse, then going back
and reselecting and
moving with the mouse,
etc. Even after three
rounds of this I found
that the viewpoint
presets all still worked
fine.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">What
browser and system are
you using? Can you
define a sequence more
precisely that
illustrates the
anomalous behaviour?</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Regards,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Roy</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""
lang="EN-US">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""
lang="EN-US"> Chris
Ratcliffe [mailto:<a
moz-do-not-send="true"
href="mailto:chris@theguild.tv" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:chris@theguild.tv">chris@theguild.tv</a></a>] <br>
<b>Sent:</b> 02 December
2015 11:07<br>
<b>To:</b> <a
moz-do-not-send="true"
href="mailto:x3dom-users@lists.sourceforge.net" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:x3dom-users@lists.sourceforge.net">x3dom-users@lists.sourceforge.net</a></a><br>
<b>Subject:</b>
[x3dom-users] Setting
Viewpoints - camera
drifts off when moved
with mouse</span></p>
<p class="MsoNormal"> </p>
<div>
<div>
<div>
<div>
<div>
<p
class="MsoNormal"
style="margin-bottom:12.0pt">Hi, wondering if anyone has a way to get
this viewpoint
example to be
more usable:<br>
<br>
<a
moz-do-not-send="true"
href="http://doc.x3dom.org/tutorials/animationInteraction/viewpoint/index.html"
target="_blank"><a class="moz-txt-link-freetext" href="http://doc.x3dom.org/tutorials/animationInteraction/viewpoint/index.html">http://doc.x3dom.org/tutorials/animationInteraction/viewpoint/index.html</a></a></p>
</div>
<div>
<p
class="MsoNormal">The
problem with the
online example
is this:</p>
</div>
<div>
<p
class="MsoNormal"> </p>
</div>
<p class="MsoNormal">If
you rotate the
reindeer with the
mouse, the first
time everything is
OK,</p>
</div>
<p class="MsoNormal"
style="margin-bottom:12.0pt">and
you can use the
viewpoint presets to
pick the various
views.</p>
</div>
<p class="MsoNormal">Rotate
the reindeer with the
mouse again and all
the views are offset.</p>
</div>
<p class="MsoNormal">(top
view is no longer top
etc..)</p>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
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</blockquote>
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<pre wrap="">------------------------------------------------------------------------------
Go from Idea to Many App Stores Faster with Intel(R) XDK
Give your users amazing mobile app experiences with Intel(R) XDK.
Use one codebase in this all-in-one HTML5 development environment.
Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs.
<a class="moz-txt-link-freetext" href="http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140">http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140</a></pre>
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</blockquote>
<br>
<br>
<div class="moz-signature">-- <br>
<font class="tahoma,arial,helvetica san serif" color="#333366">
<font size="+1"><b>Leonard Daly</b></font><br>
X3D Co-Chair<br>
Cloud Consultant<br>
President, Daly Realism - <i>Creating the Future</i>
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