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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US'>Doug and Leonard,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US'>Yes. I agree. I have now submitted a specification comment and created a Mantis issue (number 978) for this.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US'>Great catch, Doug. Thank you.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US'>Roy<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext'> x3d-public [mailto:x3d-public-bounces@web3d.org] <b>On Behalf Of </b>Leonard Daly<br><b>Sent:</b> 04 September 2016 01:38<br><b>To:</b> x3d-public@web3d.org<br><b>Subject:</b> Re: [x3d-public] Texturing3D > RST > handedness > left<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On 9/3/2016 10:30 AM, doug sanden wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><pre><a 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><o:p></o:p></pre><pre>"right-handed coordinate system"<o:p></o:p></pre><pre>should read<o:p></o:p></pre><pre>"left-handed coordinate system"<o:p></o:p></pre><pre>?<o:p></o:p></pre></blockquote><p class=MsoNormal style='margin-bottom:12.0pt'><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><o:p></o:p></p><div><p class=MsoNormal>-- <br><b><span style='font-size:13.5pt;color:#333366'>Leonard Daly</span></b><span style='color:#333366'><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> </span><o:p></o:p></p></div></div></body></html>