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<div class="moz-cite-prefix">On 9/3/2016 10:30 AM, doug sanden
wrote:<br>
</div>
<blockquote
cite="mid:BN6PR14MB1778EB4F17CAA0439D7226CEB6E40@BN6PR14MB1778.namprd14.prod.outlook.com"
type="cite">
<pre wrap=""><a class="moz-txt-link-freetext" href="http://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/texture3D.html#Texturecoordinates">http://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/texture3D.html#Texturecoordinates</a>
"right-handed coordinate system"
should read
"left-handed coordinate system"
?</pre>
</blockquote>
<br>
Doug, this is a good catch.<br>
<br>
The text specifies right-handed coordinate system; however, the
references for the coordinate system in Figure 33.1 and text in
33.2.3 that it is left-handed. A RHS would be (r,s,t), but the text
indicates that the coordinate system is (s,t,r). It appears that the
image plane coordinates are (s,t) and R is the plane layer. The
diagram appears to be logically correct implying a LHS, but that is
not consistent with the general use of RHS throughout X3D.<br>
<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>
3D Systems & Cloud Consultant<br>
X3D Co-Chair on Sabbatical<br>
LA ACM SIGGRAPH Chair<br>
President, Daly Realism - <i>Creating the Future</i>
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