Vergence-accommodation conflict: Difference between revisions
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The problem is less severe in 3D TV/cinema, when it is properly taken into account during content creation and display. Part of the reason it's less severe, is that the 3D objects are not close to the viewer. | The problem is less severe in 3D TV/cinema, when it is properly taken into account during content creation and display. Part of the reason it's less severe, is that the 3D objects are not close to the viewer. | ||
The problem occurs because our eyes have | The problem occurs because our eyes have an [https://en.wikipedia.org/wiki/Accommodation_reflex accommodation-vergence reflex], which trains them to automatically adjust their optical focus (accommodation) based on the perceived distance to the objects (vergence) that they are looking at. This helps make focusing quick and accurate. | ||
When a virtual object appears to be mere inches in front of the user’s face, but the image of that object is, optically, several meters away (as it is in common HMD design), the user’s eyes may focus on the wrong distance, causing the virtual object to appear blurry. The same can happen when the virtual object is very far away, but the effect is less pronounced. | When a virtual object appears to be mere inches in front of the user’s face, but the image of that object is, optically, several meters away (as it is in common HMD design), the user’s eyes may focus on the wrong distance, causing the virtual object to appear blurry. The same can happen when the virtual object is very far away, but the effect is less pronounced. | ||