Graphical Object Rendering with Mesoscale Structure Mapping
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Solution Overview
Problem
Current 2D and 3D printing technologies face challenges in accurately simulating and editing the surface appearance of materials, particularly reflective properties like shiny metallic surfaces, due to the complexity of controlling optical characteristics and the need for expertise in adjusting geometric and light scattering parameters.
Innovation Solution
A method and apparatus that utilize a mapping between mesoscale structure and light scattering parameters to maintain perceptual appearance characteristics, such as gloss and color, by adjusting parameters like reflectivity and roughness based on user input, allowing intuitive manipulation of surface appearance through a graphical user interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional CAD software tools are used to manually adjust geometric and light scattering parameters, then surface appearance can be controlled, but the process requires high-level expertise and experience, making it difficult for general users
Solution Approach 1:
The patent introduces an intermediary computational model that automatically translates between mesoscale geometric parameters and light scattering parameters. This intermediary layer eliminates the need for users to have expertise in either domain, as the system automatically performs the complex calculations and adjustments that would otherwise require specialized knowledge.
Solution Approach 2:
The system enables self-service by allowing users to directly modify mesoscale geometric parameters through an intuitive interface, with the light scattering parameters being automatically adjusted in response. This self-adjusting mechanism eliminates the need for users to manually control multiple independent parameters or understand complex optical theories.
2Adaptability or versatility
If multiple independent parameters (geometry and reflectance) are controlled separately, then comprehensive surface appearance control is achieved, but the number of parameters increases complexity and difficulty of manipulation
Solution Approach 1:
The patent merges the control of geometric parameters and light scattering parameters into a unified system. By establishing a direct mapping relationship between mesoscale geometry and optical properties, the system allows users to control surface appearance through a single set of intuitive geometric parameters, while the light scattering parameters are automatically derived and adjusted accordingly.
Solution Approach 2:
The system transforms the control approach by changing from directly manipulating multiple independent optical parameters to modifying mesoscale geometric parameters that automatically drive the optical properties. This parameter transformation reduces the effective number of user-controllable parameters while maintaining comprehensive appearance control capability.
3Manufacturing precision
If traditional rendering approaches are used without considering mesoscale structure, then rendering speed is maintained, but accuracy in simulating perceived surface appearance (especially gloss) is reduced
Solution Approach 1:
The patent applies preliminary action by pre-computing and storing the mapping relationships between mesoscale geometric parameters and light scattering parameters. This allows the rendering system to quickly retrieve and apply pre-calculated optical properties based on the mesoscale structure, avoiding the need for complex real-time calculations while maintaining high accuracy in perceived appearance simulation.
Data Source
AI summary
A method of rendering a graphical object comprises accessing a mapping relating a mesoscale structure and a light scattering parameter of a material to a perceptual appearance characteristic; determining a perceptual appearance characteristic of the graphical object, the graphical object reproduced on an interface to represent an object formed from the material, the perceptual appearance characteristic determined in accordance with the mapping using an initial mesoscale structure and a light scattering parameter of the material; receiving a signal indicating a modification in structure relating to the initial mesoscale structure; and determining, using the mapping, an adjustment of the light scattering parameter preserving the determined perceptual appearance characteristic, based on the modification of the initial mesoscale structure. The method further comprises adjusting the light scattering parameter of the material according to the adjustment; and rendering the graphical object using the modified mesoscale structure and the adjusted light scattering parameter.