[x3d-public] Spec problem with 3D texture axes: wrong-handed coordinate system
Brutzman, Donald (Don) (CIV)
brutzman at nps.edu
Sun Aug 29 21:50:26 PDT 2021
Looks outstanding to me, we will review. Thanks Vince.
p.s. if you created an X3D model to produce this, am happy to check it into version control We have a section in the X3D archives for specification figures.
all the best, Don
--
Don Brutzman Naval Postgraduate School, Code USW/Br brutzman at nps.edu
Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman
From: vmarchetti at kshell.com<mailto:vmarchetti at kshell.com>
Sent: Saturday, August 28, 2021 8:04 AM
To: X3D-Public<mailto:x3d-public at web3d.org>
Subject: Re: [x3d-public] Spec problem with 3D texture axes: wrong-handed coordinate system
Attached is a revised Figure 33.1 for the X3D V4 specification under review.
This version of the figure was corrected to accurately match the description of the R S T coordinate axes as described in Sections 33.2.2 and 33.2.3 of https://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/texture3D.html<https://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/texture3D.html#f-3DTexture>
Vince Marchetti
[cid:C7A5C751-3499-4599-8796-42078B88503E at attlocal.net]
On Aug 27, 2021, at 9:58 PM, vmarchetti at kshell.com<mailto:vmarchetti at kshell.com> wrote:
Upon evaluation, this figure attached to the Aug 27 email is inconsistent with the specification text Section 33.2.3
A corrected figure is forthcoming.
Vince Marchetti
On Aug 27, 2021, at 3:54 PM, vmarchetti at kshell.com<mailto:vmarchetti at kshell.com> wrote:
Please evaluate whether attached figure meets needs of X3DV4 specification document
SVG (via Inkscape) format available upon request
Vince Marchetti
<x3dV4_Fig33_1.png>
On Aug 27, 2021, at 1:47 PM, Brutzman, Donald (Don) (CIV) <brutzman at nps.edu<mailto:brutzman at nps.edu>> wrote:
As noted in Mantis 978, https://www.web3d.org/member-only/mantis/view.php?id=978
The following figure shows a left-handed coordinate system.
https://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/texture3D.html#f-3DTexture
<54CB4E59BAA24518B7648236A2468E3C.png>
Wondering how to fix – swap 2 axes can work. Perhaps there is a commonly used diagram in OpenGL (or elsewhere) we might adopt and adapt?
Any volunteers to do this (pretty please) to improve X3D4 specification?
all the best, Don
--
Don Brutzman Naval Postgraduate School, Code USW/Br brutzman at nps.edu<mailto:brutzman at nps.edu>
Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman
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