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Collaboration

Ce n'est pas necessairement au sens d'un jeu, c'est le fait d'etre a plusieurs dans un environnement virtuel.

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Pourquoi la collaboration ?

Nous sommes des animaux sociaux

Environnement virtuel collaboratif

"Les environnements virtuel collaboratifs (CVEs) sont des systemes distribues de realite virtuelle qui offrent des univers graphiques numeriques potentiellement infinis. Au sein de ces univers, les utilisateurs peuvent partager des informations"

Rappel: projection

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Il faut voir ces systemes comme un trompe-l'oeil

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Collaboration avec projection

Collaboration avec projection ?

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Du point de vue d'une personne:

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Du point de vue d'une seconde personne:

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On souhaite une projection pour chaque personne

Projection pour 6 personnes:

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Possible grace a un affichage 360 Hz

  • 60 Hz par personne

Pour notre bus, cela permettrait de ne pas le voir deformee

Pour une personne exterieur, ca donne ca:

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On voit 12 images differrents en meme temps

Problemes:

  • Collisions
  • Occultations

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Collaboration avec casques de RV

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Modes de collaboration

  • Collaboration co-localisee
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  • Collaboration distante
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Deux modes differentiables:

  • Mode "coherent"
    • Image Not Showing Possible Reasons
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    • Image Not Showing Possible Reasons
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    • Utilise quand on est sur place
  • Mode "individuel"
    • Image Not Showing Possible Reasons
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    • Image Not Showing Possible Reasons
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    • Chacun a son propre referentiel

Collaboration co-localisee "coherente"

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Exemple: Paint 3D

Besion d'un referentiel commun

  • Systeme de tracking
  • Detection de marqueur

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Collaboration en realite augmentee

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Soit on importe les personnes physiques dans le monde virtuel, soit on importe les elements virtuels dans le monde physique

Metaphores d'interaction

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Manipuler un objet a plusieurs ?

Si une personne manipule un objet, personne ne peut manipuler cet objet
Un objet est trop lourd, il faut qu'il soit deplacer par 2 personnes

Manipulation collaborative

  • Faire la moyenne

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  • Manipulation conjointe

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  • Separation des degres de liberte
    • Une personne manipule que la rotation
    • Une personne manipule que le deplacement

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  • Translation et rotation a partir de la translation de 2 utilisateurs

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En general, chacun se deplace separement

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  • Une personne dirige tout le groupe

Collaboration asymetrique

  • Asymmetry in scale
    • Image Not Showing Possible Reasons
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  • Asymmetry in visualisation
    • Image Not Showing Possible Reasons
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  • Asymmetry in interaction
    • Image Not Showing Possible Reasons
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Modele en 5 dimensions pour modeliser ces interactions:

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Exemples:

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Communication

Conscience des autres utilisateurs

  • Ou sont-ils ?
  • Qui sont-ils ?
  • Que font-ils ?
  • Que regardent-ils ?
  • Me regardent-ils ?
  • Peuvent-ils voir ce que je leur montre ?

Pointage

Annotations

Exemple

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Telepresence

Ce genre de problemes devient vite complique

Si une personne est face a nous, on veut qu'elle nous regarde et pas a cote

Capture de mouvement

  • Communication non verbale

RV sociale

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Image Not Showing Possible Reasons
  • The image file may be corrupted
  • The server hosting the image is unavailable
  • The image path is incorrect
  • The image format is not supported
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