Deferred Primitive Batch Binning for Graphics Rendering
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Solution Overview
Problem
Conventional graphics processing systems face inefficiencies in rendering complex 3D images due to repeated color and depth value reads and writes from memory, leading to suboptimal system performance and unnecessary processing overhead in immediate mode rendering systems.
Innovation Solution
The implementation of a deferred primitive batch binning mechanism, where primitives are grouped into batches and processed in bins within the graphics pipeline, allowing for delayed shading and reduced memory bandwidth usage by identifying initial and next bin intercepts for each primitive and only shading contributing pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If immediate shading of rasterized pixels is performed for each primitive individually, then pixel color values can be determined quickly, but processing overhead increases and memory bandwidth is wasted
Solution Approach 1:
The patent merges multiple primitives into batches and processes them together through shared rasterization and shading operations. Multiple primitives are grouped into batches, with each batch processed by identifying contributing pixels once and then applying shading to all primitives in the batch simultaneously, reducing redundant operations and memory accesses.
Solution Approach 2:
The patent performs preliminary identification of contributing pixels before shading operations. By determining which pixels are actually contributed by each primitive in advance, the system avoids unnecessary shading operations on non-contributing pixels, reducing processing overhead and memory bandwidth usage.
2Manufacturing precision
If complete rasterization of each primitive is performed individually, then all pixels are processed, but system performance decreases due to repeated memory reads and writes
Solution Approach 1:
The patent extracts and processes only the contributing pixels from each primitive batch. By identifying and separating the pixels that actually need to be shaded from those that don't, the system eliminates redundant processing steps and memory operations, improving overall rendering performance while maintaining completeness.
Solution Approach 2:
The patent combines multiple primitives into batches and processes their contributing pixels together in a single shading operation. This merging approach allows the system to determine pixel contributions for multiple primitives simultaneously and apply shading once for all contributing pixels, reducing repeated memory reads and writes.
3Manufacturing precision
If all pixels of each primitive are shaded, then complete coverage is achieved, but unnecessary shading operations increase power consumption
Solution Approach 1:
The patent applies partial action by shading only the contributing pixels of each primitive rather than all pixels. By identifying and processing only those pixels that actually receive light or color information from the primitive, the system avoids unnecessary shading operations and reduces power consumption while maintaining complete and accurate pixel coverage.
Data Source
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AI summary
A system, method and a computer program product are provided for hybrid rendering with deferred primitive batch binning. A primitive batch is generated from a sequence of primitives. Initial bin intercepts are identified for primitives in the primitive batch. A bin for processing is identified. The bin corresponds to a region of a screen space. Pixels of the primitives intercepting the identified bin are processed. Next bin intercepts are identified while the primitives intercepting the identified bin are processed.