Function and Use of Virtual Reality Physical Camera

The functions of VR physical camera are as follows:

Aperture coefficient

The aperture coefficient is inversely proportional to the aperture relative to the aperture. The smaller the coefficient, the larger the aperture, the greater the brightness of light, and the brighter and clearer the subject.

The aperture coefficient is proportional to the depth of field, and the greater the depth of field, the greater the depth of field.

Shutter speed

The actual speed is the reciprocal of the shutter speed, so the bigger the number, the faster.

The slower the shutter speed, the slower the actual speed, the more light passing through, and the brighter and clearer the subject is.

Shutter speed is inversely proportional to motion blur, and the smaller the value, the more blurred it is.

The higher the speed of ISO film, the brighter it is.

White balance White balance means that no matter how the ambient light affects white, this white is defined as white.

The zoom factor parameter determines the final image (near or far), but it is not necessary to enlarge or reduce the camera.

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The usage of VR entity camera is as follows:

Generally speaking, VR's physical camera is more flexible than ordinary cameras. For example, if the brightness is insufficient, you don't need to add multiple values. You can choose the shutter, aperture and ISO of a physical camera (the principle is the same as that of a real camera, and you can operate well with a basic knowledge of photography).

Generally, we adjust the aperture (mm) and focal length (mm) of the "F number" of the film door, just like ordinary cameras. The smaller the value, the brighter and darker it is, which is also related to the depth of field effect. The "white balance" shutter speed is usually combined with the aperture to complete the exposure. The smaller the value, the brighter it is, and the darker it is, the "film speed" is ISO.

Extended data

Different from the three-dimensional space realized by general 3D modeling, VR photography is a new technology to reproduce the real scene through on-site shooting, which is closer to the real environment of the scene and makes people feel immersive.

VR photography technology is to take a 360-degree field or real shot of the environment, scene or concrete still life, and then use the picture stitching software to stitch the pictures into a 360-degree panorama. Then the virtual roaming software is used to simulate the two-dimensional picture of the scene or object from all angles into a display space with certain interactive function and three-dimensional effect.

Due to the superiority and expansibility of its technology, some interactive multimedia can be added to increase the display effect of space, so that viewers can really get a powerful and shocking visual experience and be there.

Baidu encyclopedia: VR photography