Combined Spatial Index for Ray Tracing Static and Dynamic Objects
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Solution Overview
Problem
Current ray tracing techniques require significant computational power and time, especially when rendering complex three-dimensional scenes, making it challenging to achieve fast and realistic rendering for applications like animation.
Innovation Solution
The creation of a combined spatial index that partitions a three-dimensional scene into static and dynamic object regions, allowing for efficient ray tracing by tracing rays through a single index that links static and dynamic object spatial indices, reducing the need for frequent index updates and improving processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If ray tracing is used to render three-dimensional scenes, then rendering realism is improved, but computational power requirements and processing time increase significantly
Solution Approach 1:
The patent divides the three-dimensional scene into multiple regions using spatial partitioning structures (such as octrees or kd-trees), creating a hierarchical organization where each node represents a specific spatial region. This segmentation allows the system to process different parts of the scene independently and efficiently, reducing the overall computational burden while maintaining rendering quality.
Solution Approach 2:
The patent pre-processes the three-dimensional scene by building spatial indexes and partitioning structures before actual rendering occurs. This preliminary organization of spatial data enables faster ray-tracing operations during rendering, as rays can be directed through pre-computed spatial hierarchies rather than processing all objects uniformly, thus reducing real-time computational requirements.
2Manufacturing precision
If ray tracing is used to render three-dimensional scenes, then rendering realism is improved, but rendering speed decreases
Solution Approach 1:
The patent segments the scene into spatial regions using tree structures (octrees, kd-trees) that divide 3D space hierarchically. This allows rays to be traced through only the relevant portions of the scene rather than all objects, significantly reducing the number of intersection tests and accelerating rendering while preserving realism.
Solution Approach 2:
The patent performs preliminary spatial partitioning and index building before rendering. By pre-organizing scene data into efficient spatial structures, the system enables fast ray-tracing during actual rendering operations, achieving both high realism and acceptable rendering speeds through this upfront computational investment.
3Productivity
If a spatial index is created to partition the three-dimensional scene, then ray tracing efficiency is improved, but index creation time and computational overhead increase
Solution Approach 1:
The patent creates spatial indexes and partitioning structures during a preliminary processing stage before rendering occurs. By building these efficient data structures upfront, the system enables fast ray-tracing operations during actual rendering, and the index creation time is amortized over multiple rendering frames, improving overall productivity.
Solution Approach 2:
The patent divides the scene into hierarchical spatial regions using tree structures that can be efficiently constructed from scene data. This segmentation strategy creates compact, easy-to-traverse indexes that accelerate ray tracing by reducing the search space, with the index construction overhead being justified by the significant performance gains during rendering.
Data Source
AI summary
Embodiments of the invention create links or branches from a static spatial index which partitions a three-dimensional scene based on the position of static objects to a dynamic object spatial index which partitions a three-dimensional scene based on the position of dynamic objects in a three-dimensional scene. By branching from the static spatial index to the dynamic object spatial index, the image processing system may create a single combined spatial index or a combined acceleration data structure. The combined spatial index may contain information which partitions the three-dimensional scene with respect to both static objects and dynamic objects within the three-dimensional scene. When performing ray tracing, the image processing system may only need to traverse rays issued into the three-dimensional scene through the combined spatial index to determine if the ray intersects either static objects or dynamic objects within the three-dimensional scene.