Prioritized Virtual World Asset Replication for Latency Reduction
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Solution Overview
Problem
Existing virtual world technologies face limitations in immersiveness and responsiveness due to asset preloading latencies, which hinder seamless transitions between virtual environments, particularly in applications requiring rapid movement and interaction, such as virtual office spaces.
Innovation Solution
Implementing prioritized replication methods that serialize and transmit virtual world assets in a prioritized manner, focusing on high-priority assets first, allowing users to enter and interact with virtual worlds quickly without preloading entire asset datasets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If asset preloading is performed before entering virtual worlds, then asset availability is improved, but entry latency increases
Solution Approach 1:
The system performs preliminary actions by identifying and prioritizing critical assets before user entry, then preloading only those high-priority assets in advance. This selective preliminary action reduces the scope of preloading from all assets to only essential ones, thereby maintaining asset availability for critical functions while reducing overall entry latency.
Solution Approach 2:
The asset loading process is segmented into priority levels (critical, important, optional). Critical assets are loaded immediately and fully, important assets are loaded with partial detail or placeholders, and optional assets are deferred. This segmentation allows the system to guarantee availability of essential assets while avoiding the latency penalty of loading non-essential assets beforehand.
2Reliability
If all virtual world assets are replicated to client devices, then asset accessibility is improved, but network bandwidth consumption increases
Solution Approach 1:
Different levels of asset replication are applied to different client devices based on their specific needs, device capabilities, and usage patterns. Critical assets are replicated to all devices, while optional or device-specific assets are replicated only to devices that require them. This local quality approach ensures asset accessibility for essential functions while optimizing network bandwidth by avoiding unnecessary replication of non-essential assets.
Solution Approach 2:
Instead of fully replicating all assets to all devices, the system applies partial replication by sending only essential asset data initially, with the understanding that additional assets can be downloaded on-demand or streamed as needed. This partial action maintains basic asset accessibility while dramatically reducing initial network bandwidth consumption.
3Manufacturing precision
If high-resolution assets are loaded immediately, then visual quality is improved, but memory usage increases
Solution Approach 1:
Asset resolution is made dynamic rather than static. Critical assets are loaded at high resolution immediately to ensure visual quality for essential elements. Non-critical or distant assets are loaded at lower resolutions initially, with the capability to dynamically upgrade resolution as users approach or interact with those assets. This dynamic approach maintains visual quality for important elements while managing memory usage through progressive loading.
Solution Approach 2:
Assets are loaded in nested layers of detail, similar to the nested doll concept. A base-level low-resolution version of an asset is loaded first into memory, providing immediate but simplified visual representation. Higher-resolution versions are then nested within or alongside the base version, loaded progressively as needed. This nesting strategy ensures visual quality when needed while minimizing baseline memory usage.
Data Source
AI summary
An illustrative server system receives a request from a client device to join a virtual world managed by the server system. In response to receiving the request, the server system identifies an avatar location for an avatar that is to represent a user of the client device within the virtual world when the client device joins the virtual world. Based on the avatar location, the server system determines a first priority value for a first asset of the virtual world and a second priority value for a second asset of the virtual world. Based on the first and second priority values, the server system provides to the client device a prioritized replication of the virtual world in which the first asset is replicated in a prioritized manner that allows the user to experience the first asset before the second asset is replicated. Corresponding methods and systems are also disclosed.