Shader-Based Texture Sampler for Graphics Pipelines
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Solution Overview
Problem
Existing hardware devices do not fully support complex texture sampling operations efficiently, and there are applications that require texture sampling techniques without direct access to hardware devices.
Innovation Solution
Implementing texture samplers using a shader language, allowing for a many-to-many relationship between shaders and texture samplers, which are configured with sampler-states to perform sampling operations, and are compiled during shader creation or on demand, enabling efficient texture sampling in 3D graphics programmable pipelines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex texture sampling operations are implemented using existing hardware devices, then texture sampling functionality is provided, but the hardware complexity and cost increase significantly
Solution Approach 1:
The patent replaces complex hardware-based texture sampling operations with software-based shader programs. Instead of implementing dedicated hardware circuits for each texture sampling technique (anisotropic filtering, anti-aliasing, etc.), the system uses programmable shader code that can be executed on general-purpose GPUs or CPUs, thereby reducing hardware complexity while maintaining full texture sampling functionality.
Solution Approach 2:
The patent creates a universal texture sampling architecture where a single programmable shader core can perform multiple texture sampling operations. By using a many-to-many relationship between shaders and samplers, one shader core can handle various sampling techniques (point sampling, bi-linear filtering, tri-linear filtering, anisotropic filtering, anti-aliasing) through different shader programs, eliminating the need for dedicated hardware for each sampling method.
2Adaptability or versatility
If complex texture sampling operations are implemented using existing hardware devices, then texture sampling is supported, but performance and efficiency are insufficient
Solution Approach 1:
The patent implements dynamic texture sampling where the sampling method and parameters can be changed at runtime through shader program selection. Instead of fixed hardware configurations, the system dynamically compiles and executes appropriate shader code based on the required sampling operation, allowing optimal performance for different sampling techniques without hardware reconfiguration.
Solution Approach 2:
The patent changes the operational parameters of texture sampling by using configurable shader programs with adjustable parameters. The shader code can be compiled with different parameters to optimize for specific sampling techniques, and the same hardware can adapt to different sampling requirements by changing shader parameters rather than physical hardware configuration.
3Ease of operation
If applications require texture sampling without direct hardware access, then software-based solutions are needed, but performance is significantly slower
Solution Approach 1:
The patent introduces a shader language compiler and execution environment as an intermediary between software applications and the graphics processing unit. Applications can call texture sampling operations through standard graphics APIs without direct hardware access, and the compiler translates these calls into optimized shader code that executes efficiently on the GPU, bridging the gap between software accessibility and hardware performance.
Solution Approach 2:
The patent performs preliminary compilation of shader code before runtime execution. By pre-compiling shader programs into optimized machine code or intermediate representation, the system prepares efficient execution paths in advance, so that when applications need texture sampling operations, the pre-compiled code can execute at near-hardware speeds without the overhead of just-in-time compilation during runtime.
Data Source
AI summary
A texture sampler is implemented using a shader language. The shader compiler is used to compile the texture sampler to a target machine based on sampler state, sampler operation, and other static factors input values provided to the texture sampler. The shaders such as a vertex shader, geometry shader, pixel shader, hull shader, domain shader, and a compute shader may call one or more texture samplers while the shaders are invoked. The one or more texture samplers, which are a piece of software code may generate texture samples from the texture data and provide such texture samples to the shaders. The shaders generate shading effects on graphics elements using a texture samples. The graphics elements along with the shading effects are then rendered on a display device.