gocon-2022-spring_sponsor-session.pdf

Transcript

1. ϝλόʔεΛࢧ͑Δٕज़
   
   
   ʙUGCʹᷓΕΔ3DۭؒͷϦΞϧλΠϜ௨৴Λࢧ͑ΔGoʙ
   Ϋϥελʔגࣜձࣾ thara
   2022-04-23 Go Conference 2022 Spring (Online)
   

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2. Cluster, Inc. All Rights Reserved.
   ࣗݾ঺հ
   2
   thara
   • Tomochika Hara (ݪ ஌Ѫ)
   
   
   • Ѫ஌ݝࡏॅϦϞʔτϫʔΧʔ
   
   
   • ૒ࢠͷ෕
   
   
   • झຯ
   
   
   • NESΤϛϡϨʔλ࣮૷
   @zetta1985
   

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3. Cluster, Inc. All Rights Reserved.
   ϝλόʔεϓϥοτϑΥʔϜ cluster ͱ͸
   3
   

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4. Cluster, Inc. All Rights Reserved.
   ϝλόʔεϓϥοτϑΥʔϜ cluster ͱ͸
   4
   

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5. Cluster, Inc. All Rights Reserved.
   ϝλόʔεϓϥοτϑΥʔϜ cluster ͱ͸
   5
   

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6. Cluster, Inc. All Rights Reserved.
   ࠓ೔࿩͢͜ͱ
   6
   • ϝλόʔεΛߏ੒͢Δཁૉٕज़
   
   
   • ϝλόʔεϓϥοτϑΥʔϜͷόοΫΤϯυͱGo
   
   
   • room serverͷมભͱ಺෦ΞʔΩςΫνϟ
   

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7. ϝλόʔεΛߏ੒͢Δཁૉٕज़
   

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8. Cluster, Inc. All Rights Reserved.
   ϝλόʔεΛߏ੒͢Δཁૉٕज़
   8
   3࣍ݩͷԾ૝ۭؒ
   UGC
   ΤίγεςϜ
   

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9. Cluster, Inc. All Rights Reserved.
   3࣍ݩͷԾ૝ۭؒ
   9
   • Unity3d
   
   
   • ϦΞϧλΠϜಉظ
   
   
   • Ξόλʔͷ࢟੎৘ใ
   
   
   • ϘΠενϟοτ
   
   
   • ϞϊͷҐஔɾ޲͖
   

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10. Cluster, Inc. All Rights Reserved.
    UGC ( = User Generated Contents)
    10
    • Ξόλʔ
    
    
    • ϫʔϧυ
    
    
    • Ϋϥϑτ
    

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11. Cluster, Inc. All Rights Reserved.
    ΤίγεςϜ
    11
    • ΞϓϦ಺௨՟
    
    
    • UGCͷചങ
    
    
    • Πϕϯτνέοτ
    
    
    • ΠϕϯτͰͷ౤͛મ
    

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12. ϝλόʔεϓϥοτϑΥʔϜͷόοΫΤϯυͱGo
    

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13. Cluster, Inc. All Rights Reserved.
    શମߏ੒
    13
    

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14. Cluster, Inc. All Rights Reserved.
    શମߏ੒
    14
    6($
    ΤίγεςϜ
    ࣍ݩͷԾ૝ۭؒ
    

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15. Cluster, Inc. All Rights Reserved.
    APIαʔόʔ
    15
    The Go gopher was designed by Renée French.
    • Ϣʔβʔೝূ
    
    
    • ϑϨϯυ
    
    
    • UGC؅ཧ
    
    
    • ೖࣨ؅ཧ
    
    
    • ܾࡁ
    

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16. Cluster, Inc. All Rights Reserved.
    UGCύΠϓϥΠϯ
    16
    The Go gopher was designed by Renée French.
    • VRM, glTF
    
    
    • reduction
    
    
    • native texture
    

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17. Cluster, Inc. All Rights Reserved.
    glTF
    17
    • JSONʹΑΔ3DϞσϧ΍γʔϯΛදݱ͢ΔσʔλϑΥʔϚοτ
    
    
    • ૬ޓӡ༻ɾ༰ྔɾϥϯλΠϜॲཧͷޮ཰Խ
    
    
    • ʮ3Dʹ͓͚ΔJPEGʯ
    IUUQTHJUIVCDPN,ISPOPT(SPVQHM5'CMPCNBJOTQFDJ
    fi
    DBUJPO
    fi
    HVSFTHM5'@3(#@+VOFTWH
    

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18. Cluster, Inc. All Rights Reserved.
    VRM
    18
    • ϓϥοτϑΥʔϜඇґଘͷ3DΞόλʔϑΝΠϧϑΥʔϚοτ
    
    
    • glTF-2.0Λϕʔεʹ͍ͯ͠Δ
    
    
    • ώϡʔϚϊΠυɾඪ४ͷإૢ࡞ɾҰਓশࢹ఺࠶ݱɾϥΠηϯε
    IUUQTWSNEFW
    

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19. Cluster, Inc. All Rights Reserved.
    VRMΛGoͰѻ͏
    19
    https://github.com/qmuntal/gltf ΛϕʔεʹVRMʹରԠ
    type VRMExtension struct{ ...
    }
    
    func init()
    {
    
    gltf.RegisterExtension("VRM", func(data []byte) (interface{}, error)
    {
    
    var vrm VRMExtensio
    n
    
    err := json.Unmarshal(data, vrm
    )
    
    return vrm, er
    r
    
    }
    )
    
    }
    
    func DecodeVRM(raw []byte) (*gltf.Document, *VRMExtension, error)
    {
    
    var doc gltf.Documen
    t
    
    if err := gltf.NewDecoder(bytes.NewReader(raw)).Decode(&doc); err != nil
    {
    
    // error handling
    }
    
    return &doc, doc.Extensions["VRM"].(*VRMExtension), nil
    }
    
    

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20. Cluster, Inc. All Rights Reserved.
    reduction/GPU native texture
    20
    func (c *converter) bufferViewImage
    (
    
    src *gltf.Document, index uint32, dst *gltf.Document) (uint32, string, error)
    {
    
    bv := src.BufferViews[index
    ]
    
    buf, err := modeler.ReadBufferView(src, bv
    )
    
    if err != nil
    {
    
    // error handling
    }
    
    // reduction & GPU native texture encoding
    converted, mimeType, err := converter.Convert(buf
    )
    
    if err != nil
    {
    
    // error handling
    }
    
    newIndex := modeler.WriteBufferView(dst, gltf.TargetNone, converted
    )
    
    return newIndex, mimeType, nil
    }
    

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21. Cluster, Inc. All Rights Reserved.
    room server
    21
    The Go gopher was designed by Renée French.
    

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22. room serverͷมભͱ಺෦ΞʔΩςΫνϟ
    

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23. Cluster, Inc. All Rights Reserved.
    pubsubͷΈ (room serverҎલ)
    23
    • ۭؒಉظͰ͋Ε͹͜ΕͰे෼
    
    
    • message΁ͷׯব͸Ͱ͖ͳ͍
    
    
    • = ࣮ݱͰ͖Δػೳʹ੍ݶ
    

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24. Cluster, Inc. All Rights Reserved.
    pubsubͷΈ (room server)
    24
    • ୯ʹMQTTΛ͠Ό΂Δ͚ͩͷ
    Go੡TCPαʔόʔ
    
    
    • hack͢ΔͨΊͷԼ஍
    

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25. Cluster, Inc. All Rights Reserved.
    Actor
    25
    • client͝ͱͷॲཧ͕Մೳʹ
    
    
    • messageͷfiltering
    
    
    • LOD
    
    
    • Ξόλʔ࢟੎৘ใ
    
    
    • ϘΠε
    

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26. Cluster, Inc. All Rights Reserved.
    Actor
    26
    

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27. Cluster, Inc. All Rights Reserved.
    Actor + global state
    27
    • globalͳঢ়ଶΛߋ৽Մೳʹ
    
    
    • ϫʔϧυΫϥϑτ
    
    
    • = ஔ͍ͨϞϊͷӬଓԽ
    

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28. Cluster, Inc. All Rights Reserved.
    Actor + global state
    28
    

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29. Cluster, Inc. All Rights Reserved.
    Next…?
    29
    • ͍ͩͿ໰୊΁ͷཧղ͕ਐΜͩ
    
    
    • ൚༻తͳ݁߹͔ΒɺΑΓҙຯ
    Λ࣋ͬͨߏ଄΁
    
    
    • ߋͳΔ௨৴ྔ࡟ݮ
    
    
    • UDPϕʔεͷಠࣗϓϩτίϧ
    

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30. ·ͱΊ
    

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31. Cluster, Inc. All Rights Reserved.
    ·ͱΊ
    31
    • ϝλόʔεΛߏ੒͢Δཁૉٕज़
    
    
    • 3࣍ݩͷԾ૝ۭؒ
    
    
    • UGC
    
    
    • ΤίγεςϜ
    
    
    • clusterͰ͸ͦͷόοΫΤϯυΛ Go Ͱ࣮ݱͯ͠·͢
    

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32. IUUQTSFDSVJUDMVTUFSNVFOHJOFFS
    

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33. Thanks for Listening
    

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