Google has released a PC VR helmet free app called Welcome to Light Fields. Google said the app could serve as "a demonstration of emerging technologies that Google is using to drive next-generation VR content."
When it comes to capturing the real world of VR, 360 photos and videos can only come to an end, and there are some limitations that make them more immersive than real-time rendered computer-generated VR content - the ability that is actually missing Moved in the captured scene. Since 360 ​​photos and video content are limited to viewing from the camera's precise location, you will be effectively stuck in place unless you can rotate the head.
The purpose of volume capture technology is not only to capture a circular view, but to capture the entire scene (or at least a part of it) so that the viewer can move the head through 3D space during the capture process and view the scene from different angles. . Light field is a promising way to capture volume, providing a flexible, high-quality base format for capturing, generating and storing VR content.
In a light field like this, you can see how to properly move the reflections and illumination on the illuminating object while moving the head, rather than "copying" like the texture of the object, just like using some non-light field methods Volume capture is the same |
Initially, these scenes look similar to simple 360 ​​stereo photos, but when you move your head into space, magic happens - instead of effectively "locking the world on your head", you'll find it Move around you as you would expect if you really stand there, it's more immersive than static 360 capture.
Google’s custom light field camera takes about a minute to complete a full rotation to capture a light field scene
It looks amazing, but it is not without limits. In this case, a captured image is generated by a custom light field camera that rotates a series of GoPro cameras into a circle to capture a spherical area about two feet wide - you can view the scene from anywhere in the sphere, but If you stick your head outside, its world will become blank. This is because the camera is able to effectively capture all the light that intersects all spheres, and then the algorithm recreates the view from any point in the sphere to see your visual pleasure. A larger viewing area can be achieved with a larger camera.
The scene disappears when you move your head out of the shooting area |
Welcome to Light Fields, showing some very impressive light field images. At its best, you can see clear, immersive landscapes with lots of depth and reflection that will convincingly react when you move your head.
The interior of Discovery Space Shuttle looks like a light field | amazing
Some scenes are not as sharp as other scenes, and sometimes you can find artifacts, wrong depth information, reflections, and lighting at the edges of objects that don't look right. File size is still a huge challenge. Some of the static light field scenes of Welcome to Light Fields, totaling around 6GB - are always good for demo applications, but may be too large for mass adoption.
Still, Welcome to Light Fields is a powerful example of light field technology, and see why volume shooting may be the future of VR video .
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