Unified 3D Light Source Model for Seamless Parameter Transfer
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Solution Overview
Problem
Designing lighting for digital three-dimensional environments is a complex and iterative process, as different lighting sources require unique parameter sets, leading to loss of tuning when switching between light sources, and existing systems struggle with integrating complex lighting conditions and modifying light sources with emittance maps.
Innovation Solution
The enriched light source system unifies lighting models using surface-centric representations of three-dimensional shapes, allowing for a continuous light source space with a small set of intuitive parameters, and provides interactive controls for modifying light sources within three-dimensional environments, enabling seamless transitions between light types and efficient rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If different light source types are used with their unique parameter sets, then lighting accuracy and realism are improved, but parameter transferability and design efficiency deteriorate
Solution Approach 1:
The patent creates a unified light source model that can represent multiple light source types (point lights, spotlights, area lights) through a single set of parameters. The enriched light source uses a unified parameter space including position, emission direction, emission spread, and intensity, which can be applied across different light types without requiring separate parameter sets for each type.
Solution Approach 2:
The patent transforms the traditional approach of using different parameter sets for different light types into a single parameter space where light source characteristics are controlled by adjusting specific parameters within that unified space. By modifying parameters like emission spread and intensity distribution, the same enriched light source can produce different lighting effects previously requiring different light types.
2Illumination intensity
If traditional iterative trial-and-error methods are used for lighting design, then lighting quality can be improved, but design time and complexity increase
Solution Approach 1:
The patent establishes a unified light source model and parameter space in advance, creating a standardized framework that eliminates the need for repeated parameter adjustments when switching between light types. This preliminary unification allows designers to work efficiently from the start without encountering the iterative re-tuning problems that plague traditional workflows.
3Illumination intensity
If complex lighting conditions with multiple light sources are integrated, then lighting realism is improved, but system complexity and computational load increase
Solution Approach 1:
The patent merges multiple light source types into a single enriched light source model. By combining the characteristics of point lights, spotlights, and area lights into one unified representation, the system reduces complexity while maintaining the ability to simulate complex lighting conditions through parameter adjustment rather than through system architecture complexity.
Data Source
AI summary
Methods, systems, and non-transitory computer readable storage media are disclosed for generating enriched light sources by utilizing surface-centric representations of three-dimensional surfaces. Specifically, the disclosed system utilizes a surface-centric re-parameterization that combines geometric and algebraic components of a sphere to model different light source types in a continuous range of lighting configurations. The disclosed systems utilize a set of intuitive parameters to determine a shape and emission parameters for generating an enriched light source. Additionally, the disclosed system provides a set of interactive light source controls to modify a position, orientation, shape, emittance, and lighting attenuation over distance of a light source within a three-dimensional environment. The disclosed system determines the light source controls based on sets of three-dimensional interaction primitives to control one or more parameters of the light source. The disclosed system provides the light source controls for consistently modifying various light source types within the three-dimensional environment.