Avatar Head Orientation Control for VR Line of Sight
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Solution Overview
Problem
Existing three-dimensional output servers for head-mounted displays only move the entire avatar and fail to accurately determine the user's line of sight in virtual reality spaces, particularly when the user turns their head.
Innovation Solution
A server system that communicates with a head-mounted display to transmit and adjust screen data based on the yaw and pitch directions of the user's head, allowing for precise changes in the avatar's direction to align with the user's line of sight, including a screen data transmitting unit, direction data receiving unit, and avatar data changing unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only the entire avatar is moved based on head position, then the avatar follows the user's location, but the user's line of sight cannot be accurately determined
Solution Approach 1:
The avatar is segmented into multiple controllable parts: the body position and the head orientation are controlled independently. The body moves to the user's location while the head rotates separately to match the user's line of sight direction, allowing accurate gaze determination without increasing overall system complexity
Solution Approach 2:
The solution adds a rotational dimension to the avatar's head independent of the translational movement of the body. By introducing yaw and pitch rotation capabilities to the head, the system can determine line of sight in three-dimensional space while keeping the body position control simple
2Reliability
If the avatar's head direction is changed based on head mounted display turn data, then the user's line of sight is accurately reflected, but the system complexity increases
Solution Approach 1:
The system uses feedback from the head mounted display's direction data (yaw and pitch angles) to automatically adjust the avatar's head orientation. This closed-loop feedback mechanism ensures the avatar's gaze accurately reflects the user's actual line of sight while maintaining simple processing through direct angle mapping
Solution Approach 2:
The solution creates a simplified copy of the user's head orientation data to control the avatar's head. By directly copying the yaw and pitch angle information from the head mounted display to the avatar model, the system achieves accurate line of sight reflection without complex processing algorithms
Data Source
AI summary
The present invention is to provide a server and a method for three-dimensional output that easily determines the user's line of sight in a virtual reality space. The server for three-dimensional output being communicatively connected with a head mounted display outputting full dome three-dimensional space data as virtual or augmented reality corresponding to a user's line of sight sequentially transmits screen data to be output to and displayed on the head mounted display; receives data on the turn in the yaw direction and the pitch direction of the head mounted display from the head mounted display; changes the screen data based on the received turn in the yaw direction and the pitch direction of the head mounted display; and changes avatar data on the user of the head mounted display based on the received turn in the yaw direction and the pitch direction of the head mounted display.