Enriched Light Sources Using Surface-Centric Representations
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Solution Overview
Problem
Existing systems for designing lighting in digital three-dimensional environments are inefficient and require significant manual adjustments when transitioning between different light sources, as they rely on distinct parameter sets for each type, leading to loss of previously tuned settings and increased complexity in rendering pipelines.
Innovation Solution
The introduction of enriched light sources that unify lighting models through surface-centric representations, allowing for a continuous light source space exploration with a small set of intuitive parameters, and interactive controls for modifying light sources within three-dimensional environments, enabling seamless transitions and efficient rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If different lighting sources use distinct parameter sets, then each light source type can be precisely controlled, but parameter tuning work is lost when switching between light sources and the process becomes inefficient
Solution Approach 1:
The patent implements a unified lighting model where a single parameter set controls multiple light source types (point lights, area lights, directional lights). The light source representation uses universal parameters including position, orientation, emission intensity, and spatial extent that can represent any light type, eliminating the need to re-tune parameters when switching between light sources.
Solution Approach 2:
The system transforms the traditional approach of using different parameter sets for different light types into a single parameter space where light source type is determined by parameter values rather than separate configurations. By changing parameters continuously, the system can transition between different light source types while maintaining all previously tuned settings.
2Reliability
If multiple specialized lighting models are used for different light sources, then each model can be optimized for its specific type, but the system complexity increases and parameter management becomes difficult
Solution Approach 1:
The patent merges multiple specialized lighting models into a single unified lighting representation. Instead of maintaining separate models for point lights, area lights, and directional lights, the system uses one comprehensive model that encompasses all light types through a unified parameter space, reducing system complexity while maintaining control precision.
Solution Approach 2:
The unified lighting model serves multiple functions simultaneously, representing different light source types with a single parameter set. This universal approach eliminates the need for multiple specialized models while maintaining the ability to precisely control various lighting effects through parameter adjustment.
3Adaptability or versatility
If traditional lighting models are used, then implementation is straightforward with conventional parameters, but flexibility in exploring continuous light source space is limited
Solution Approach 1:
The system transforms the discrete, type-specific parameter approaches into a continuous parameter space where light source type is not fixed but can be continuously explored. By using parameters that define position, orientation, emission characteristics, and spatial extent in a unified manner, the system enables flexible exploration of light source configurations without increasing the number of parameters.
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.