Graphics Tile Mipmap Rendering with Z-Ordered Bitmap Feedback
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Solution Overview
Problem
Existing graphics processing methods, despite using techniques like mipmaps, remain computationally intensive, necessitating improved rendering methods to optimize resource usage.
Innovation Solution
An apparatus and method that utilize graphics data receiver, rendering, and render feedback circuitry to generate a z-ordered bitmap representation of used tile regions, eliminating unused bits and optimizing the representation of used tile regions in mipmaps for efficient rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional bitmap representation is used to track used tile regions in mipmaps, then all possible tile regions are represented, but unused bits increase storage requirements and computational load
Solution Approach 1:
The patent extracts and removes unused bits from the bitmap representation by applying z-ordering to only include valid combinations of mipmap levels and tile regions. This eliminates redundant data elements that do not correspond to actual used tile regions, directly reducing storage requirements while maintaining tracking accuracy.
Solution Approach 2:
The patent segments the bitmap representation by organizing bits according to z-ordering, which divides the space in a hierarchical manner. This segmentation allows only valid tile region combinations to be represented, separating useful information from unused data and enabling efficient storage and processing.
2Quantity of substance
If z-ordering is applied to bitmap representation, then unused bits are eliminated reducing storage, but additional processing steps are required
Solution Approach 1:
The patent applies z-ordering as a preliminary organization step that structures the bitmap data in advance. By pre-organizing bits according to valid mipmap level and tile region combinations, the system eliminates unused bits upfront, reducing storage requirements while making subsequent processing more efficient through the structured layout.
3Manufacturing precision
If all mipmap levels are processed with full resolution, then maximum rendering quality is achieved, but computational intensity increases significantly
Solution Approach 1:
The patent applies local quality by using different mipmap levels for different spatial regions. Through z-ordered bitmap tracking, the system identifies which tile regions at which mipmap levels are actually used, allowing high-resolution processing only where needed and lower-resolution processing in other areas, thus reducing overall computational intensity while maintaining rendering quality where it matters.
Data Source
AI summary
Aspects of the present disclosure relate to an apparatus comprising graphics data receiver circuitry, rendering circuitry and render feedback circuitry. Graphics data comprising tiles of texture mipmap data is received and rendered to produce a rendered output, based on a used set of tiles. An intermediate representation of the used set is generated in the form of a bitmap. Based on this, a z-ordering is applied to valid bits of bitmap elements to generate a final representation of the used set.