Illumination Simulation via Interpolation and Lookup Tables
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Solution Overview
Problem
Conventional illumination design systems require significant computing resources and time to simulate lighting patterns on target surfaces due to the need to trace a large number of sampling rays, making them inefficient and costly.
Innovation Solution
The method involves selecting a light source, determining a sampling angle and range, and using interpolation schemes to estimate the paths of sampling rays, allowing for the creation of accurate illumination patterns with a reduced number of rays, thereby reducing processing time without sacrificing quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional ray tracing techniques are used to simulate illumination patterns, then measurement precision is improved, but loss of time increases significantly
Solution Approach 1:
The patent creates a simplified copy of the illumination simulation process by pre-calculating and storing illumination patterns in a lookup table. Instead of tracing rays in real-time, the system copies pre-computed results from the lookup table based on light source parameters, achieving both speed and accuracy.
Solution Approach 2:
The patent performs preliminary calculations by pre-computing illumination patterns for various light source configurations and storing them in advance in a lookup table. This preliminary action eliminates the need for time-consuming real-time ray tracing during actual simulations.
2Measurement precision
If a large number of sampling rays are traced to achieve accurate illumination patterns, then measurement precision is improved, but productivity decreases
Solution Approach 1:
The patent copies pre-computed illumination data from a lookup table instead of performing full ray tracing. This copying approach maintains measurement precision by using accurate pre-calculated values while dramatically improving productivity by avoiding repeated computation.
Solution Approach 2:
The patent performs the computationally intensive ray tracing work in advance and stores results in a lookup table. This preliminary action enables fast retrieval during actual simulations, resolving the contradiction between precision and productivity.
3Measurement precision
If conventional illumination design systems are used, then measurement precision is improved, but use of energy increases due to significant computing resources required
Solution Approach 1:
The patent copies pre-computed illumination patterns from a lookup table rather than performing energy-intensive real-time ray tracing. This approach maintains measurement precision while significantly reducing computing resource consumption and energy use.
Solution Approach 2:
The patent performs energy-consuming calculations in advance when computing resources are available, storing results in a lookup table. During actual use, the system retrieves pre-computed data with minimal energy consumption, resolving the contradiction between precision and energy use.
Data Source
AI summary
Systems and methods for simulating illumination patterns on target surfaces in a space are disclosed. The system includes an input component and a simulation component. The input component receives a sampling angular range, a sampling polygon density, and a sampling polygon type. The simulation component traces sampling rays according to the sampling angular range and the sampling polygon density and type within a sampling range. The simulation component can further (1) generate an initial illumination pattern with a plurality of sampling polygon projections on the target surface; (2) assign the same value of an attribute in the sampling polygon projections defined by sampling rays through substantially the same route from the light source to the target surface; and (3) adjust the value of the attribute in the sampling polygon projection defined by sampling rays from different routes by interpolation.