Networked Simulation Artifact Reduction via Delayed Processing Penalty
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Solution Overview
Problem
Networked simulations experience artifacts due to latency and application logic issues in both central authority and peer-to-peer architectures, leading to desynchronization and potential malicious behavior, particularly when retroactive processing of inputs is required, which can result in unfair advantages and increased computing resources usage.
Innovation Solution
Implementing a system that introduces a delayed processing penalty to ensure a minimum acceptable duration between input generation and authoritative simulation state update, using a central authority to manage simulation information and routing, and employing a reconciliation window to manage network latency, while terminating connections if network characteristics exceed certain thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If retroactive processing of inputs is implemented at the central authority, then user experience responsiveness is improved, but network artifacts and desynchronization occur due to latency
Solution Approach 1:
The patent segments the simulation processing into two independent parts: client-side prediction (for responsiveness) and server-side authoritative processing (for accuracy). Each client device independently predicts simulation outcomes based on client inputs, while the server processes inputs authoritatively. This segmentation allows both responsiveness and accuracy to coexist without interfering with each other, resolving the contradiction between user experience and synchronization reliability.
Solution Approach 2:
The patent introduces a reconciliation mechanism as an intermediary between client-side prediction and server-side processing. This intermediary compares predicted simulation states with actual server-generated states and resolves discrepancies. The reconciliation process acts as a mediator that harmonizes the conflicting requirements of immediate responsiveness (from client prediction) and accurate synchronization (from server processing), eliminating network artifacts while maintaining both performance benefits.
2Ease of operation
If client-side prediction is applied to improve responsiveness, then user experience is enhanced, but network artifacts arise from latency between client and server
Solution Approach 1:
The patent implements feedback through the reconciliation process, where the server sends correction information back to clients about discrepancies between predicted and actual simulation states. This feedback loop allows clients to adjust their rendered states to match the authoritative server state, eliminating visual artifacts while preserving the responsiveness benefits of client-side prediction. The feedback mechanism ensures that the harmful network artifacts are corrected without sacrificing the beneficial responsiveness.
3Measurement precision
If the central authority replicates simulation conditions for retroactive processing, then input processing accuracy is improved, but computing resources consumption increases
Solution Approach 1:
The patent applies partial action by processing only the necessary simulation state changes rather than replicating entire simulation conditions. Instead of re-executing the complete simulation from the beginning, the server processes only the incremental changes caused by client inputs since the last synchronization point. This partial processing approach maintains input processing accuracy while significantly reducing computing resource consumption compared to full replication.
4Manufacturing precision
If retroactive input processing is implemented, then simulation accuracy is improved, but unfair advantages may occur between users
Solution Approach 1:
The patent ensures equipotentiality by treating all users equally through the reconciliation process. The server processes inputs from all clients authoritatively and sends corrections to all clients simultaneously. This equal treatment prevents any single user from gaining unfair advantages through timing or processing speed differences. All users receive the same accurate simulation state updates at the same time, eliminating the potential for unfair advantages while maintaining simulation accuracy.
Data Source
AI summary
A system, method, and computer program product for reducing artifacts in networked simulations using reconciliation with a combined peer-to-peer and authoritative network architecture, comprising obtaining at least one input associated with an authoritative simulation state from a first client device of a plurality of client devices, the first client device executing a first simulation instance, associating a delayed processing penalty with the first client device, the delayed processing penalty providing a minimum acceptable duration that elapses between an initial instance associated with the at least one input by the first client device and a subsequent instance when generating the authoritative simulation state based on the at least one input of the first client device, routing simulation information to the plurality of client devices, the simulation information associated with the authoritative simulation state, and updating one or more simulation instances of the first client device with the simulation information.