October 2024
Intermediate
240 pages
6h 57m
Japanese
Content preview from 図解まるわかり VR・AR・MRのしくみ
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54
ルームスケール移 動 、トンネリング、テレポーテーション
3-3
VR酔いを防ぐ表現
現実空間と仮想空間で動きがリンクするルームスケール移動
VR体験では、デバイスを通して伝わる視覚や聴覚の情報と実際の身体
が感じる触覚にズレが生じることで、脳が混乱して自律神経の乱れを起こ
し、VR酔いが発症してしまいます。
そこで、VR酔いを防ぐための技術が主に 3 つあります（図 3-5）。
1 つ目はルームスケール移動です。ユーザーが実際に歩いて移動するこ
とで仮想空間でも同じように動くことができる技術です（図 3-6）。例え
ば、現実空間で一歩動くと、仮想空間でも同じようにアバターが一歩動く
イメージです。この技術により、仮想空間のアバターの動きと自分の身体
の動きが一致するため、VR酔い防止につながります。
視野角を制限して抑制するトンネリング
2つ目はトンネリングです。VRヘッドセットのディスプレイに映し出さ
れる映像の視野角を狭めることでVR酔いを抑える方法です。例えば、車
で移動しているとき、外の景色を眺めていて気持ち悪さを感じたことがあ
るかもしれません。これは、目に映る情報（視覚）と身体が実際に感じる
情報（内耳による平衡感覚）が一致しないことが原因で起きる症状です。
トンネリングでは、視界に入る情報量を意図的に少なくすることで、こ
うした脳の不一致を防止してVR 酔いを抑えています。
瞬時に移動して負担を軽減するテレポーテーション
3 つ目はテレポーテーションです。ユーザーが直接歩くことなく仮想空
間内を瞬時に移動する方法です ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.