[x3d-public] X3D meeting agenda 18 FEB 2022: SpotLight angles, Volume Rendering component
Brutzman, Donald (Don) (CIV)
brutzman at nps.edu
Thu Feb 17 03:17:42 PST 2022
Nicholas and Michalis, also need you to reconcile mismatched enumeration
naming within specification:
* Mantis 867: 41.4.1 BlendedVolumeStyle - Inconsistent enumerations,
ALPHA0 ALPHA1 or ALPHA1 ALPHA2
* https://www.web3d.org/member-only/mantis/view.php?id=867
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 https://
faculty.nps.edu/brutzman
From: Brutzman, Donald (Don) (CIV) <brutzman at nps.edu>
Sent: Tuesday, February 15, 2022 8:53 PM
To: Nicholas Polys <npolys at vt.edu>; Michalis Kamburelis
(michalis.kambi at gmail.com) <michalis.kambi at gmail.com>
Cc: X3D Public Mailing List (x3d-public at web3d.org) <x3d-public at web3d.org>;
Brutzman, Donald (Don) (CIV) <brutzman at nps.edu>
Subject: X3D meeting agenda 18 FEB 2022: SpotLight angles, Volume Rendering
component
0. Regular Friday meeting 08-0900 Friday, call information below.
Videoconference Connectivity:
*
https://us02web.zoom.us/j/81634670698?pwd=a1VPeU5tN01rc21Oa3hScUlHK0Rxdz09
* https://zoom.us/j/148206572 Password 483805
* https://www.web3d.org/member/teleconference-information
1. Spiraling questions about SpotLight field relationships and default
values, beamwidth and cutoffAngle
* X3D4 Architecture, Lighting component, clause 17.4.4 SpotLight
*
https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/
components/lighting.html#SpotLight
excerpted
SpotLight : X3DLightNode {
SFFloat [in,out] beamWidth π/4 (0,π/2]
SFFloat [in,out] cutOffAngle π/2 (0,π/2]
}
* X3D4 Architecture, Lighting component, Figure 17.1 - SpotLight node
*
https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/
components/lighting.html#f-SpotLightnode
* [x3d-public] Defaults of SpotLight.cutOffAngle, beamWidth changed
(maybe by mistake) in X3D 3.3
*
https://web3d.org/pipermail/x3d-public_web3d.org/2022-February/016744.html
* Mantis 441: 17.4.3 SpotLight -- Default Values (resolved 2009)
* https://www.web3d.org/member-only/mantis/view.php?id=441
Michalis has agreed to walk us through this. Goal outcomes for
confirmation:
a. is figure OK?
b. Is relationship correct, typically beamWidth <= cutoffAngle
c. Should we modify default values?
d. Should we improve prose for clarity?
= = =
2. Working on Mantis issues for Volume Rendering component
*
https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/
Architecture.html
* X3D4 Architecture, Volume rendering component
*
https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/
Architecture.html
Nicholas and Michalis: please comment on following issues:
* Mantis 917: Table 41.7 Volume rendering component support levels -
ShadedVolumeStyle shadows support unclear
* https://www.web3d.org/member-only/mantis/view.php?id=917
and
* Mantis 709: 41.4.4 ComposedVolumeStyle - Remove reference to ordered
field
* https://www.web3d.org/member-only/mantis/view.php?id=709
Can we remove 'ordered' field from table?
= = =
3. Other topics of group interest. are always welcome.
Membership has value! Please consider joining Web3D Consortium.
* https://www.web3D.org/join
Thanks for all preparations and inputs. Have fun with X3D! 8)
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 https://
faculty.nps.edu/brutzman
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