What's the difference between a standard camera of 3dmax and a vr camera? How to use a vr camera?

The texture is different. VR is more real. The principle of approaching SLR camera.

You can render effects like depth of field.

Ordinary cameras don't have any attributes, such as white balance and exposure value. VR cameras have these functions. Simply put, if you find that the light is not bright enough, you can directly improve the picture by changing some parameters of the VR camera without modifying the brightness of the light again.