Sub-Pixel Coverage Mapping for Low-Latency Custom Product Rendering
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Solution Overview
Problem
Existing systems struggle to provide high-quality rendering of custom products with low latency, as they often require long rendering times to meet artistic requirements, which hinders user interaction and product visualization.
Innovation Solution
A hybrid approach using a capture buffer and coverage mapping to quickly determine sub-pixel coverage and shading contributions, employing scalar instructions and look-up tables to optimize rendering processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional rendering algorithms are used to meet high quality and artistic requirements, then rendering quality is improved, but rendering time increases significantly
Solution Approach 1:
The patent segments the rendering process into distinct phases: a slow, high-quality rendering phase that computes accurate sub-pixel coverage and shading contributions, and a fast rendering phase that uses pre-computed coverage data to quickly generate final images. This segmentation allows the system to achieve both high rendering quality and reduced rendering time by performing complex calculations only when necessary and using cached results for rapid reproduction.
Solution Approach 2:
The patent applies preliminary action by pre-computing sub-pixel coverage maps and shading contributions during an initial rendering pass. These pre-computed results are stored and reused during subsequent rendering operations, eliminating the need to perform complex sub-pixel calculations for every frame. This preliminary computation significantly reduces the rendering time required for interactive updates while maintaining high image quality.
2Manufacturing precision
If rendering is performed at film production quality standards, then image quality is improved, but latency increases making real-time interaction difficult
Solution Approach 1:
The patent implements dynamics by adjusting rendering quality based on the specific requirements of each rendering operation. The system dynamically switches between high-quality pre-computed rendering for initial setup and fast rendering using cached coverage data for interactive updates. This dynamic adaptation allows the system to maintain film production quality when needed while achieving low latency for real-time user interactions.
Solution Approach 2:
The patent uses copying by creating a cached copy of sub-pixel coverage data and shading information from the initial high-quality rendering. These copied results are then reused for subsequent rendering operations, eliminating the need to重新compute complex sub-pixel interactions. This copying approach maintains image quality consistent with film production standards while dramatically reducing the time required for each rendering operation.
3Manufacturing precision
If sub-pixel rendering is implemented to handle complex geometries and transparencies, then rendering quality is improved, but computational complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-computing sub-pixel coverage maps that detail which sub-pixels are covered by each polygon. These coverage maps are calculated once during an initial rendering pass and stored for reuse. During subsequent rendering operations, the system simply retrieves the pre-computed coverage data instead of performing complex sub-pixel geometric calculations, significantly reducing computational complexity while maintaining high rendering quality for complex geometries and transparencies.
Solution Approach 2:
The patent uses copying by creating and storing copies of sub-pixel coverage information from the initial rendering. These copied coverage data structures are then reused for all subsequent rendering operations, eliminating the need to重新calculate complex sub-pixel intersections. This copying strategy reduces computational complexity from O(n) per frame to O(1) lookup operations, while preserving the ability to render complex geometries and transparent overlays with high accuracy.
Data Source
AI summary
In some embodiments, a data processing method for generating a synthetic view rendering of a custom product, the method comprises: initializing, for a digital asset, a coverage mapping array; wherein each member of the coverage mapping array represents a possible coverage of sub-pixel regions of a pixel, and can be held in a scalar instruction register of a computer microprocessor; calculating a distance of each edge of the triangle from a center of a sub-pixel using a single scalar set instruction, operating on a pair of two scalar instruction set registers; using the distance and an angle of the edge to select a member of the array; combining pairs of found members of the coverage mapping array using the single scalar set instruction, operating on the pair, to assemble a sub-pixel coverage map array; rendering the pixel using the sub-pixel coverage mapping array and the sub-pixel regions of the pixel.