Scene File Format with Constant and Varying Sections
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Solution Overview
Problem
Current computer graphics file formats are inefficient in loading and manipulating complex scenes, leading to high computational costs and decreased performance due to the need to load all data into memory, especially for intricate scenes.
Innovation Solution
A file format with a constant section for referencing scene components and a varying section for modifying attributes, allowing for cached animated geometry access and sparse override semantics, enabling efficient rendering and manipulation throughout the rendering pipeline.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If all scene data (geometry, lighting, articulation, shading) is loaded into memory for manipulation, then complete scene manipulation capability is achieved, but computational cost increases and performance decreases
Solution Approach 1:
The scene data is segmented into two parts: a constant section (stored on disk) and a varying section (loaded into memory). Only the varying section containing data specific to the current frame or animation state is loaded into memory, while the constant geometry and other invariant data remain on disk. This segmentation allows complete scene manipulation capability while reducing memory footprint and improving rendering performance.
2Loss of information
If all scene data is loaded into memory, then data access completeness is improved, but memory usage and computational cost increase
Solution Approach 1:
The constant section of the scene data (geometry, invariant attributes) is extracted from memory and stored on disk. Only the varying section (frame-specific data, animation states) remains in memory. This extraction maintains data access completeness for all scene elements while significantly reducing memory footprint.
3Productivity
If a file format with constant and varying sections is used, then data access efficiency is improved, but file format complexity increases
Solution Approach 1:
The file format uses local quality by differentiating between constant and varying sections with different access patterns. The constant section is optimized for disk storage with compact representation, while the varying section is optimized for memory access. This local optimization improves overall data access efficiency despite the increased file format structure complexity.
Data Source
AI summary
A file format that includes a constant section and a varying section. The constant section provides a referencing scheme that references the various components that comprise the scene, as well as a listing of attributes of the scene that are modifiable. Within the same file format, the varying section provides an overriding mechanism to modify the attributes that are available to be modified. Accordingly, the disclosed file format can access cached animated geometry directly and/or aggregate other files via the aforementioned referencing and sparse override semantics. This allows the same set of inspection, manipulation, and rendering tools to be used throughout the rendering pipeline, from asset creation to final rendering.