17834907. METHOD AND APPARATUS FOR IMPROVING THE IMAGE QUALITY OF VARIABLE RATE SHADING USING GRADIENTS simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

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METHOD AND APPARATUS FOR IMPROVING THE IMAGE QUALITY OF VARIABLE RATE SHADING USING GRADIENTS

Organization Name

SAMSUNG ELECTRONICS CO., LTD.

Inventor(s)

Gabriel T. Dagani of Austin TX (US)

Raun Krisch of Dripping Springs TX (US)

METHOD AND APPARATUS FOR IMPROVING THE IMAGE QUALITY OF VARIABLE RATE SHADING USING GRADIENTS - A simplified explanation of the abstract

This abstract first appeared for US patent application 17834907 titled 'METHOD AND APPARATUS FOR IMPROVING THE IMAGE QUALITY OF VARIABLE RATE SHADING USING GRADIENTS

Simplified Explanation

The abstract describes a system and method for post-processing variable pixel rate shader output using gradients in a graphics processing unit. The system selects a block of pixels that corresponds to a predetermined kernel size for variable rate shading in a draw call of an application. A pixel shader run is then instantiated to generate pixel shading values for at least two pixels within the block. A gradient output is generated by interpolating the pixel shading values over the entire block of pixels.

  • The system selects a block of pixels for variable rate shading.
  • A pixel shader run generates pixel shading values for at least two pixels within the block.
  • A gradient output is generated by interpolating the pixel shading values over the entire block of pixels.
  • The predetermined kernel size can be various sizes, such as 4×2, 2×4, 4×4, 8×4, 4×8, or 8×8 blocks of pixels or larger.
  • The at least two pixels can be corner pixels of the block.

Potential applications of this technology:

  • Real-time computer graphics rendering
  • Video game development
  • Virtual reality and augmented reality applications
  • Computer-aided design and modeling
  • Image and video processing

Problems solved by this technology:

  • Variable rate shading allows for more efficient rendering by reducing the number of pixels that need to be processed.
  • The use of gradients helps to smooth out the shading transitions between pixels, resulting in improved visual quality.

Benefits of this technology:

  • Improved performance and efficiency in graphics processing
  • Enhanced visual quality in rendered images and videos
  • Greater flexibility in controlling the level of detail in different areas of an image or scene
  • Potential for more realistic and immersive virtual experiences


Original Abstract Submitted

A system and a method are disclosed for post-processing variable pixel rate shader output using gradients in a graphics processing unit. A block of pixels is selected that corresponds to a predetermined kernel size for variable rate shading in a draw call of an application. A pixel shader run is instantiated to generate pixel shading values for at least two pixels located within the block of pixels. A gradient output is generated based on an interpolation of the pixel shading values for the at least two pixels over the block of pixels. The predetermined kernel size may include at least one of a 4×2 block of pixels, a 2×4 block of pixels, a 4×4 block of pixels, an 8×4 block of pixels, a 4×8 block of pixels, and an 8×8 block of pixels or larger. The at least two pixels may be corner pixels of the block of pixels.

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