Garment Simulation Time Reduction via Mesh Caching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cloth simulation methods are computationally expensive and fail to provide high visual quality and accurate garment fitting simulations, especially when simulating interactive virtual garment fittings, leading to untenable time requirements, particularly in scenarios involving multiple garment fittings.
Innovation Solution
The method involves generating and caching source body meshes with geometric differences within a predefined threshold to the destination body mesh, selecting those that match the wearable measurement range of the garment, and generating deformable object meshes based on these cached source body meshes, thereby reducing the number of time intervals needed for simulation by interpolating between source and destination body meshes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physics based simulation is used to model complex cloth dynamics and motion, then realistic and natural simulation results are achieved, but computational cost becomes excessively high
Solution Approach 1:
The patent pre-computes and stores collision matrices for all pairs of garment vertices and body mesh vertices before the actual simulation runs. This preliminary action allows the simulation to use pre-prepared collision data during execution, avoiding the need to compute complex collision responses in real-time, thus reducing computational cost while maintaining simulation accuracy
Solution Approach 2:
The patent segments the collision handling into discrete vertex-pair interactions, creating a collision matrix that records collision states for each garment vertex against each body mesh vertex. This segmentation allows the system to efficiently query and update collision states during simulation without re-computing all collision relationships, reducing computational overhead
2Measurement precision
If simulation of garment motion over multiple time intervals is performed, then accurate garment fitting indication is achieved, but time cost becomes untenable
Solution Approach 1:
The patent pre-computes collision matrices and stores them for rapid access during simulation. This preliminary preparation eliminates the need to recalculate collision relationships at each time interval, significantly reducing the time required for multi-interval simulations while preserving fitting accuracy
Solution Approach 2:
The patent creates and stores copy of collision matrix data that can be reused across multiple time intervals. Instead of重新computing collision states, the system uses pre-stored collision information, reducing simulation time while maintaining measurement precision for garment fitting assessment
Data Source
AI summary
Systems and methods are provided for enabling the reduction of the time required to simulate a garment fitting onto a destination body shape with high visual quality, while also offering high performance and accuracy. The embodiments described herein include, for example, caching of source body meshes having a geometric difference with a destination body mesh that is within a predefined threshold. At least one of the cached source body meshes is selected, based, at least in part, on a wearable measurement range of the garment. For each of the selected cached source body meshes, a deformable object mesh representing the garment is generated, wherein the generating is based, at least in part, on the selected cached source body mesh. A source body mesh having body measurements that most closely match the body measurements of the destination body mesh is identified from among the selected cached source body meshes.