A virtual reality (VR) contents providing method performed by VR contents providing system having VR contents playing devices and sensors, comprising:
- providing a first user with a first VR content and a second user with a second VR content among the VR contents, each of the VR contents having at least one property information thereof;
- measuring first biometric information of the first user who experiences the first VR content currently playing through the first VR contents playing device, wherein the first biometric information includes first bio-reaction information that is obtained by measuring bio-reactions of the first user's body by a first sensor while the first user experiences the first VR content;
- measuring second biometric information of the second user who experiences the second VR content currently playing through the second VR contents playing device, wherein the second biometric information includes second bio-reaction information that is obtained by measuring bio-reactions of the second user's body by the second sensor while the second user experiences the second VR content;
- calculating first reaction value for the first user based on the first bio-reaction information of the first user who experiences the first VR content information every predetermined time interval;
- calculating second reaction value for the second user based on the second bio-reaction information of the second user who experiences the second VR content every predetermined time interval;
- determining first property information for the first VR content based on the first reaction value;
- and
- determining second property information for the second VR content based on the second reaction value;
- controlling the first VR contents playing device to play the first VR content having the first property information;
- controlling the second VR contents playing device to play the second VR content having the second property information;
- providing the first user and the second user with a motion generated by a motion simulator in which the first user and the second user are seated;
- calculating a motion value based on the first reaction value and the second reaction value;
- and
- controlling the motion simulator based on the motion value,
- wherein the calculating the motion value is further based on whether mean value of the first reaction value and the second reaction value is within a predetermined range, within which the first user and the second user feel comfort while sitting in the motion simulator, to provide the same motion to the first user and the second user.