Cross Shader Compilation for Graphics Pipeline Optimization
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Solution Overview
Problem
Current graphics processing technologies lack a generalized compilation method for multiple shaders, limiting flexibility and increasing operational expenses due to the inability to inline functions across different shader types at compile time.
Innovation Solution
A method and apparatus for compiling multiple shaders into computer-executable instructions using shader descriptors and call/return value instructions, allowing for seamless data communication and execution of shaders across different pipeline stages, enabling the combination of shaders of various types such as vertex, geometry, fetch, and compute shaders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate compilation of multiple shaders is used, then flexibility of shader programming is improved, but runtime overhead increases due to multiple operating stages
Solution Approach 1:
The patent merges multiple separately compiled shaders into a single combined shader program that executes in one operating stage. The system compiles multiple shaders (e.g., vertex shader, geometry shader, pixel shader) separately to maintain flexibility, then combines them into a unified execution unit that eliminates the need for multiple sequential operating stages, thereby reducing runtime overhead while preserving programming flexibility.
Solution Approach 2:
The patent performs preliminary combining of multiple shaders during the compilation phase rather than at runtime. By pre-combining the shaders into a single executable program before execution, the system prepares the merged shader in advance, eliminating the need for multiple operating stages during runtime and thus reducing time loss.
2Loss of time
If function inlining is used within a shader, then runtime overhead is reduced, but this technique only applies to shaders of the same type available at compile time, limiting flexibility
Solution Approach 1:
The patent creates a universal compilation framework that handles multiple shader types (vertex, geometry, pixel, compute shaders) through a single cross-shader compiler. This universal approach allows function inlining and optimization techniques to be applied across different shader types during compilation, eliminating the limitation of traditional same-type-only inlining while maintaining the flexibility of separate compilation for each shader type.
Solution Approach 2:
The patent introduces an intermediary cross-shader compiler that acts as a mediator between separately compiled shaders of different types. This intermediary compiler receives multiple shader types, performs function inlining and optimization across them during compilation, and generates a combined executable program, thereby enabling inlining benefits for cross-type shaders while preserving separate compilation flexibility.
3Reliability
If multiple operating stages are used in the graphics pipeline, then specific sequence of operations can be performed on the image, but operational expenses increase and overall benefit of compilation is minimized
Solution Approach 1:
The patent combines multiple operating stages into a single unified operating stage by merging multiple shaders into one combined executable program. The system maintains the specific sequence of operations (vertex processing, geometry processing, pixel processing) within the merged shader, ensuring reliability of the processing sequence while reducing operational expenses by eliminating redundant stage management overhead.
Data Source
AI summary
A method and apparatus provides for compiling a plurality of shaders, each shader having a plurality of computer-readable statements, into a plurality of computer-executable instructions. In one example, the method and apparatus, using a computing device, receives the plurality of shaders used in a process pipeline for performing at least one shading function, determines a shader type of each of the plurality of shaders based on the at least one shading function, and compiles the plurality of shaders by generating the computer-executable instructions using data including a shader descriptor for each of the plurality of shaders, resulting in the shading functions of the plurality of shaders combined together.