Layered Clothing Cage Fitting for Arbitrary 3D Avatars
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Solution Overview
Problem
Existing methods for customizing clothing on 3D avatars in electronic games require complex computations and close coordination between body and clothing creators due to pre-defined geometries, limiting customization capabilities.
Innovation Solution
An automated cage-to-cage fitting technique that allows any body geometry to be fitted with any clothing geometry, enabling layers of clothing to be fitted over underlying layers without requiring complex computations, by using inner and outer cages for body and clothing meshes and radial basis function interpolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If pre-defined shapes are used for body and clothing geometry matching, then the clothing fits the body geometry, but the capability to customize body shapes and clothing is limited
Solution Approach 1:
The patent transforms fixed pre-defined geometries into adjustable parameterized models. Body and clothing geometries are represented by cages with vertices that can be independently positioned and scaled, allowing continuous adjustment of shape parameters to achieve both precise fitting and extensive customization without being constrained by predetermined templates
Solution Approach 2:
The patent divides both body and clothing into cage structures composed of multiple vertices, edges, and faces. This segmentation allows independent manipulation of individual vertices to match geometries while maintaining overall shape integrity, enabling precise local adjustments for customization without affecting the entire model
2Adaptability or versatility
If complex computations are performed to generate custom clothing geometry matching arbitrary body shapes, then customization capability is improved, but the process complexity and coordination requirements increase
Solution Approach 1:
The patent implements self-adjusting cage structures where vertices automatically position themselves to match target geometries through constraint-based algorithms. The clothing cage and body cage independently adjust their vertex positions based on geometric constraints, eliminating the need for complex manual computations and coordination between creators
Solution Approach 2:
The patent introduces cage structures as intermediary representations between body geometry and clothing geometry. These cages serve as simplified mediators that capture essential geometric features without requiring direct complex computations between detailed body and clothing models, reducing computational complexity while maintaining customization capability
Data Source
AI summary
An automated cage-to-cage fitting technique is used to fit arbitrary three-dimensional (3D) geometry to arbitrary target 3D geometry for 3D avatars in a 3D environment, such as an online game. Each graphical representation of items of clothing is provided with an inner cage and with an outer cage. The inner cage of a clothing item (a current layer) is mapped to the outer cage of another clothing item (a previous/underlying layer) that has already been fitted on the 3D avatar. This mapping enables the current layer to conform to the shape of the previous layer. The technique allows any body geometry to be fitted with any clothing geometry, including enabling layers of clothing to be fitted over underlying layer(s) of clothing, thereby providing customization.