Shared 3D Perspective Rendering for Equal XR Asset Viewing
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Solution Overview
Problem
Existing VR and XR environments often limit collaborative work by providing discrete viewpoints to users, leading to unequal viewing positions and restricted interaction with shared assets, especially when users are spatially distant.
Innovation Solution
Implementing a shared perspective viewing mode in XR environments where assets and avatars are rendered from a unified viewpoint, adjusting the position and orientation of avatars to maintain a common perspective while allowing users to see each other spatially distant, using perspective transforms and avatar stacking techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If discrete viewpoints are provided to users in VR/XR environments, then each user has their own unique perspective, but collaborative interaction is limited and viewing positions become unequal
Solution Approach 1:
The patent merges multiple discrete user viewpoints into a single shared perspective view. The system combines the positions and orientations of multiple users to generate a unified viewpoint that represents all users collectively, allowing them to view assets from the same perspective while maintaining awareness of each other's presence through avatar rendering.
Solution Approach 2:
The system introduces an intermediary computational process that transforms individual user viewpoints into a shared perspective. This intermediary layer calculates the shared viewpoint by processing multiple user positions and orientations, then renders the asset and avatars from this common perspective, mediating between individual user inputs and the collective viewing experience.
2Reliability
If users are positioned spatially distant in XR environment, then each user has their own spatial location, but interaction with shared assets becomes restricted
Solution Approach 1:
The patent resolves the spatial distance issue by transitioning from a three-dimensional spatial arrangement to a two-dimensional projection plane. The shared perspective view projects all user avatars and the asset onto a common viewing plane, effectively adding a dimensional transformation that allows spatially distant users to interact as if co-located, while the system maintains records of their actual spatial positions for reliability.
3Ease of operation
If avatars are rendered from individual user positions, then spatial relationships are maintained, but all users cannot have equal view of shared content
Solution Approach 1:
The patent applies local quality by differentiating between how the asset is viewed versus how avatars are rendered. The asset itself is rendered from the shared perspective to ensure equal viewing for all users, while avatars are rendered with offsets that preserve spatial relationship information. This localized differentiation allows both goals to be achieved simultaneously in different parts of the rendering system.
Data Source
AI summary
Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures include: rendering, to a display device of a first user, a first user's view into an extended reality environment, the first user's view being generated using a first pose being tracked for the first user; identifying that a first avatar associated with the first user has entered a shared perspective mode with a second avatar associated with a second user of the XR environment, wherein the shared perspective mode has a single frame of reference in the XR environment that is shared by the first user and the second user; and performing, while in the shared perspective mode, the rendering to the display device of the first user.