Blending Precomputed Global Illumination for Real-Time Rendering
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Solution Overview
Problem
Real-time digital animation in VR and AR is limited by performance constraints, which restrict the fidelity of immersive experiences due to computational trade-offs, forcing conventional approaches to use a small number of lights that can be computed at runtime, leading to creative compromises and less-than-satisfactory results.
Innovation Solution
The system precomputes global illumination information for multiple static lighting setups, allowing for blending between them in real-time without significant runtime performance costs, enabling dynamic and high-quality lighting by offline processing and blending of lightmap, light probe, and reflection probe data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional real-time rendering approaches are used with a small number of lights computed at runtime, then runtime performance is maintained, but lighting fidelity and quality are compromised
Solution Approach 1:
The system precomputes global illumination information for multiple static lighting setups during an offline phase, storing the results for later use. This preliminary computation allows high-quality lighting data to be prepared in advance, eliminating the need for complex real-time calculations while maintaining lighting fidelity during runtime rendering.
2Adaptability or versatility
If multiple static lighting setups are precomputed and blended in real-time, then lighting quality and creative control are improved, but computational complexity increases
Solution Approach 1:
Multiple static lighting setups are precomputed during an offline phase, with all global illumination information calculated in advance. This allows the runtime system to simply blend between precomputed solutions using weighted averages, reducing runtime computational complexity while maintaining high adaptability for lighting transitions and creative control.
Solution Approach 2:
The system introduces blended global illumination information as an intermediary between multiple static lighting setups and the final rendered scene. By computing weighted averages of precomputed lighting data from different setups, the system creates a smooth transition mechanism that simplifies the complexity of managing multiple lighting configurations.
3Adaptability or versatility
If precomputed global illumination information is blended between multiple static lighting setups, then creative control over lighting transitions is achieved, but memory requirements increase
Solution Approach 1:
Global illumination information for multiple static lighting setups is precomputed and stored in memory during an offline phase. This preliminary action allows the system to maintain creative control over lighting transitions by having all necessary lighting data readily available, while the actual blending operation requires minimal additional memory during runtime.
Data Source
AI summary
Systems, methods, and non-transitory computer-readable media can receive a first set of static lighting information associated with a first static lighting setup and a second set of static lighting information associated with a second static lighting setup. The first set of static lighting information and the second set of static lighting information are associated with a scene to be rendered. A first set of global illumination information is precomputed based on the first set of static lighting information. A second set of global illumination information is precomputed based on the second set of static lighting information. The first and second sets of global illumination information are blended to derive a blended set of global illumination information. The scene is rendered in a real-time application based on the blended set of global illumination information.