updated docs on reflection mapping
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@ -1345,7 +1345,15 @@ To apply environment mapping efficiently in a 3D scene, traverse the scene graph
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</code></pre>
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</code></pre>
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<p>Most 3D viewers apply one and the same environment map for various models, however this logic
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<p>Most 3D viewers apply one and the same environment map for various models, however this logic
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allows a more natural & automatic strategy for reflection mapping.</p>
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allows a more natural & automatic strategy for reflection mapping:</p>
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<ol>
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<li>traverse the scene graph depth-first</li>
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<li>remember the most recent parentnode (P) with a texture material</li>
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<li>for every non-root node with a texture material
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3.1 clone that material (as materials might be shared across objects)
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3.2 set the environmentmap to the last known parent texture (P)</li>
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</ol>
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<h1 id="transclusion-broken-link-resolution">Transclusion (broken link) resolution</h1>
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<h1 id="transclusion-broken-link-resolution">Transclusion (broken link) resolution</h1>
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@ -859,7 +859,13 @@ To apply environment mapping efficiently in a 3D scene, traverse the scene graph
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```
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```
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Most 3D viewers apply one and the same environment map for various models, however this logic
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Most 3D viewers apply one and the same environment map for various models, however this logic
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allows a more natural & automatic strategy for reflection mapping.
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allows a more natural & automatic strategy for reflection mapping:
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1. traverse the scene graph depth-first
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2. remember the most recent parentnode (P) with a texture material
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3. for every non-root node with a texture material
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3.1 clone that material (as materials might be shared across objects)
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3.2 set the environmentmap to the last known parent texture (P)
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# Transclusion (broken link) resolution
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# Transclusion (broken link) resolution
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@ -3,7 +3,7 @@
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Jens & Leon Internet Engineering Task Force L.R. van Kammen
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Jens & Leon Internet Engineering Task Force L.R. van Kammen
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Internet-Draft 7 October 2024
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Internet-Draft 14 October 2024
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Intended status: Informational
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Intended status: Informational
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@ -53,7 +53,7 @@ Status of This Memo
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van Kammen Expires 10 April 2025 [Page 1]
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van Kammen Expires 17 April 2025 [Page 1]
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Internet-Draft XR Fragments October 2024
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Internet-Draft XR Fragments October 2024
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@ -63,7 +63,7 @@ Internet-Draft XR Fragments October 2024
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time. It is inappropriate to use Internet-Drafts as reference
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time. It is inappropriate to use Internet-Drafts as reference
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material or to cite them other than as "work in progress."
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material or to cite them other than as "work in progress."
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This Internet-Draft will expire on 10 April 2025.
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This Internet-Draft will expire on 17 April 2025.
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Copyright Notice
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Copyright Notice
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@ -109,7 +109,7 @@ Table of Contents
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van Kammen Expires 10 April 2025 [Page 2]
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van Kammen Expires 17 April 2025 [Page 2]
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Internet-Draft XR Fragments October 2024
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Internet-Draft XR Fragments October 2024
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@ -125,7 +125,7 @@ Internet-Draft XR Fragments October 2024
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23. Topic-based index-less Webrings . . . . . . . . . . . . . . . 32
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23. Topic-based index-less Webrings . . . . . . . . . . . . . . . 32
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24. URI Templates (RFC6570) . . . . . . . . . . . . . . . . . . . 33
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24. URI Templates (RFC6570) . . . . . . . . . . . . . . . . . . . 33
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25. Additional scene metadata . . . . . . . . . . . . . . . . . . 33
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25. Additional scene metadata . . . . . . . . . . . . . . . . . . 33
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26. Accessibility interface . . . . . . . . . . . . . . . . . . . 34
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26. Accessibility interface . . . . . . . . . . . . . . . . . . . 35
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26.1. Two-button navigation . . . . . . . . . . . . . . . . . 35
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26.1. Two-button navigation . . . . . . . . . . . . . . . . . 35
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26.2. Overlap with fileformat-specific extensions . . . . . . 36
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26.2. Overlap with fileformat-specific extensions . . . . . . 36
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26.3. Vendor Prefixes . . . . . . . . . . . . . . . . . . . . 36
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26.3. Vendor Prefixes . . . . . . . . . . . . . . . . . . . . 36
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@ -165,7 +165,7 @@ Internet-Draft XR Fragments October 2024
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van Kammen Expires 10 April 2025 [Page 3]
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van Kammen Expires 17 April 2025 [Page 3]
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Internet-Draft XR Fragments October 2024
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Internet-Draft XR Fragments October 2024
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@ -221,7 +221,7 @@ Internet-Draft XR Fragments October 2024
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van Kammen Expires 10 April 2025 [Page 4]
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van Kammen Expires 17 April 2025 [Page 4]
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Internet-Draft XR Fragments October 2024
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Internet-Draft XR Fragments October 2024
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van Kammen Expires 10 April 2025 [Page 5]
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van Kammen Expires 17 April 2025 [Page 5]
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Internet-Draft XR Fragments October 2024
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Internet-Draft XR Fragments October 2024
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@ -333,7 +333,7 @@ Internet-Draft XR Fragments October 2024
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van Kammen Expires 10 April 2025 [Page 6]
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van Kammen Expires 17 April 2025 [Page 6]
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Internet-Draft XR Fragments October 2024
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Internet-Draft XR Fragments October 2024
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@ -389,7 +389,7 @@ Internet-Draft XR Fragments October 2024
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van Kammen Expires 10 April 2025 [Page 7]
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van Kammen Expires 17 April 2025 [Page 7]
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Internet-Draft XR Fragments October 2024
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van Kammen Expires 10 April 2025 [Page 8]
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van Kammen Expires 17 April 2025 [Page 8]
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van Kammen Expires 10 April 2025 [Page 9]
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van Kammen Expires 10 April 2025 [Page 10]
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van Kammen Expires 17 April 2025 [Page 10]
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van Kammen Expires 10 April 2025 [Page 11]
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van Kammen Expires 10 April 2025 [Page 12]
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van Kammen Expires 10 April 2025 [Page 13]
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van Kammen Expires 10 April 2025 [Page 15]
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Most 3D viewers apply one and the same environment map for various
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Most 3D viewers apply one and the same environment map for various
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models, however this logic allows a more natural & automatic strategy
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models, however this logic allows a more natural & automatic strategy
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for reflection mapping.
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for reflection mapping:
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1. traverse the scene graph depth-first
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2. remember the most recent parentnode (P) with a texture material
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3. for every non-root node with a texture material 3.1 clone that
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material (as materials might be shared across objects) 3.2 set
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the environmentmap to the last known parent texture (P)
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22. Transclusion (broken link) resolution
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src or href values can make a difference
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2. mirroring files on another protocol using (HTTP) errorcode tags
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2. mirroring files on another protocol using (HTTP) errorcode tags
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3. in case of src: nesting a copy of the embedded object in the
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For example:
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+────────────────────────────────────────────────────────+
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+────────────────────────────────────────────────────────+
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* href: schoolB.edu/projects.gltf#math&-courses math
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* href: schoolB.edu/projects.gltf#math&-courses math
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||||||
* href: university.edu/projects.gltf#math&-theme math
|
* href: university.edu/projects.gltf#math&-theme math
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
van Kammen Expires 17 April 2025 [Page 32]
|
||||||
|
|
||||||
|
Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
| This would hide all object tagged with topic, courses or theme
|
| This would hide all object tagged with topic, courses or theme
|
||||||
| (including math) so that later only objects tagged with math will
|
| (including math) so that later only objects tagged with math will
|
||||||
| be visible
|
| be visible
|
||||||
|
|
@ -1786,14 +1802,6 @@ Internet-Draft XR Fragments October 2024
|
||||||
separate content into separate files, or show/hide things using a
|
separate content into separate files, or show/hide things using a
|
||||||
complex logiclayer like javascript.
|
complex logiclayer like javascript.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 32]
|
|
||||||
|
|
||||||
Internet-Draft XR Fragments October 2024
|
|
||||||
|
|
||||||
|
|
||||||
24. URI Templates (RFC6570)
|
24. URI Templates (RFC6570)
|
||||||
|
|
||||||
XR Fragments adopts Level1 URI *Fragment* expansion to provide safe
|
XR Fragments adopts Level1 URI *Fragment* expansion to provide safe
|
||||||
|
|
@ -1834,22 +1842,18 @@ Internet-Draft XR Fragments October 2024
|
||||||
* BibTex (https://bibtex.eu/fields) when known bibtex-keys exist
|
* BibTex (https://bibtex.eu/fields) when known bibtex-keys exist
|
||||||
with values enclosed in { and },
|
with values enclosed in { and },
|
||||||
|
|
||||||
*ARIA* (aria-description) is the most important to support, as it
|
|
||||||
promotes accessibility and allows scene transcripts. Please start
|
|
||||||
aria-description with a verb to aid transcripts.
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
van Kammen Expires 17 April 2025 [Page 33]
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 33]
|
|
||||||
|
|
||||||
Internet-Draft XR Fragments October 2024
|
Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
|
*ARIA* (aria-description) is the most important to support, as it
|
||||||
|
promotes accessibility and allows scene transcripts. Please start
|
||||||
|
aria-description with a verb to aid transcripts.
|
||||||
|
|
||||||
| Example: object 'tryceratops' with aria-description: is a huge
|
| Example: object 'tryceratops' with aria-description: is a huge
|
||||||
| dinosaurus standing on a #mountain generates transcript
|
| dinosaurus standing on a #mountain generates transcript
|
||||||
| #tryceratops is a huge dinosaurus standing on a #mountain, where
|
| #tryceratops is a huge dinosaurus standing on a #mountain, where
|
||||||
|
|
@ -1892,6 +1896,16 @@ Internet-Draft XR Fragments October 2024
|
||||||
| These attributes can be scanned and presented during an href or
|
| These attributes can be scanned and presented during an href or
|
||||||
| src eye/mouse-over.
|
| src eye/mouse-over.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
van Kammen Expires 17 April 2025 [Page 34]
|
||||||
|
|
||||||
|
Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
26. Accessibility interface
|
26. Accessibility interface
|
||||||
|
|
||||||
The addressibility of XR Fragments allows for unique 3D-to-text
|
The addressibility of XR Fragments allows for unique 3D-to-text
|
||||||
|
|
@ -1899,13 +1913,6 @@ Internet-Draft XR Fragments October 2024
|
||||||
Spec:
|
Spec:
|
||||||
<Br>
|
<Br>
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 34]
|
|
||||||
|
|
||||||
Internet-Draft XR Fragments October 2024
|
|
||||||
|
|
||||||
|
|
||||||
1. The enduser must be able to enable an accessibility-mode (which
|
1. The enduser must be able to enable an accessibility-mode (which
|
||||||
persists across application/webpage restarts)
|
persists across application/webpage restarts)
|
||||||
2. Accessibility-mode must contain a text-input for the user to
|
2. Accessibility-mode must contain a text-input for the user to
|
||||||
|
|
@ -1948,6 +1955,13 @@ Internet-Draft XR Fragments October 2024
|
||||||
Therefore a 2-button navigation-interface is the bare minimum
|
Therefore a 2-button navigation-interface is the bare minimum
|
||||||
interface:
|
interface:
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
van Kammen Expires 17 April 2025 [Page 35]
|
||||||
|
|
||||||
|
Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
1. objects with href metadata can be cycled via a key (tab on a
|
1. objects with href metadata can be cycled via a key (tab on a
|
||||||
keyboard)
|
keyboard)
|
||||||
2. objects with href metadata can be activated via a key (enter on a
|
2. objects with href metadata can be activated via a key (enter on a
|
||||||
|
|
@ -1955,13 +1969,6 @@ Internet-Draft XR Fragments October 2024
|
||||||
3. the TTS reads the href-value (and/or aria-description if
|
3. the TTS reads the href-value (and/or aria-description if
|
||||||
available)
|
available)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 35]
|
|
||||||
|
|
||||||
Internet-Draft XR Fragments October 2024
|
|
||||||
|
|
||||||
|
|
||||||
26.2. Overlap with fileformat-specific extensions
|
26.2. Overlap with fileformat-specific extensions
|
||||||
|
|
||||||
Some 3D scene-fileformats have support for extensions. What if the
|
Some 3D scene-fileformats have support for extensions. What if the
|
||||||
|
|
@ -2004,20 +2011,16 @@ Internet-Draft XR Fragments October 2024
|
||||||
3D engines/frameworks, to initialize specific features when loading a
|
3D engines/frameworks, to initialize specific features when loading a
|
||||||
scene/object, in a progressive enhanced way.
|
scene/object, in a progressive enhanced way.
|
||||||
|
|
||||||
Vendor Prefixes allows embedding 3D engines/framework-specific
|
|
||||||
features a 3D file via metadata:
|
|
||||||
|
|
||||||
|
|
||||||
|
van Kammen Expires 17 April 2025 [Page 36]
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 36]
|
|
||||||
|
|
||||||
Internet-Draft XR Fragments October 2024
|
Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
|
Vendor Prefixes allows embedding 3D engines/framework-specific
|
||||||
|
features a 3D file via metadata:
|
||||||
|
|
||||||
+===========+===================+==============================+
|
+===========+===================+==============================+
|
||||||
| what | XR metadata | Lowest common denominator |
|
| what | XR metadata | Lowest common denominator |
|
||||||
+===========+===================+==============================+
|
+===========+===================+==============================+
|
||||||
|
|
@ -2066,10 +2069,7 @@ Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
van Kammen Expires 17 April 2025 [Page 37]
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 37]
|
|
||||||
|
|
||||||
Internet-Draft XR Fragments October 2024
|
Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
@ -2125,7 +2125,7 @@ Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 38]
|
van Kammen Expires 17 April 2025 [Page 38]
|
||||||
|
|
||||||
Internet-Draft XR Fragments October 2024
|
Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
@ -2181,7 +2181,7 @@ Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 39]
|
van Kammen Expires 17 April 2025 [Page 39]
|
||||||
|
|
||||||
Internet-Draft XR Fragments October 2024
|
Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
@ -2237,7 +2237,7 @@ Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 40]
|
van Kammen Expires 17 April 2025 [Page 40]
|
||||||
|
|
||||||
Internet-Draft XR Fragments October 2024
|
Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
@ -2293,7 +2293,7 @@ Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 41]
|
van Kammen Expires 17 April 2025 [Page 41]
|
||||||
|
|
||||||
Internet-Draft XR Fragments October 2024
|
Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
@ -2349,4 +2349,4 @@ Internet-Draft XR Fragments October 2024
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
van Kammen Expires 10 April 2025 [Page 42]
|
van Kammen Expires 17 April 2025 [Page 42]
|
||||||
|
|
|
||||||
|
|
@ -1191,7 +1191,15 @@ To apply environment mapping efficiently in a 3D scene, traverse the scene graph
|
||||||
]]>
|
]]>
|
||||||
</artwork>
|
</artwork>
|
||||||
<t>Most 3D viewers apply one and the same environment map for various models, however this logic
|
<t>Most 3D viewers apply one and the same environment map for various models, however this logic
|
||||||
allows a more natural & automatic strategy for reflection mapping.</t>
|
allows a more natural & automatic strategy for reflection mapping:</t>
|
||||||
|
|
||||||
|
<ol spacing="compact">
|
||||||
|
<li>traverse the scene graph depth-first</li>
|
||||||
|
<li>remember the most recent parentnode (P) with a texture material</li>
|
||||||
|
<li>for every non-root node with a texture material
|
||||||
|
3.1 clone that material (as materials might be shared across objects)
|
||||||
|
3.2 set the environmentmap to the last known parent texture (P)</li>
|
||||||
|
</ol>
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
<section anchor="transclusion-broken-link-resolution"><name>Transclusion (broken link) resolution</name>
|
<section anchor="transclusion-broken-link-resolution"><name>Transclusion (broken link) resolution</name>
|
||||||
|
|
|
||||||
15
index.html
15
index.html
File diff suppressed because one or more lines are too long
Loading…
Reference in New Issue