Shader for reducing myopiagenic effect of graphics rendered for electronic display

A system, comprising:

• a graphics processing unit (GPU) and a memory storing instructions that when executed cause the GPU to:
• receive, by a fragment shader executed on the GPU, rasterized data of a fragment of an image frame;
• determine, by the fragment shader executed on the GPU, an initial color for each pixel of the fragment, the initial color comprising a value, ri, for a first sub-pixel color, a value, gi, for a second sub-pixel color, and a value, bi, for a third sub-pixel color;
• compute, by the fragment shader executed on the GPU, a relative level of stimulation of cones in a viewer's eye for each pixel of the fragment based, at least, on the value, ri, for the first sub-pixel color and the value, gi, for the second sub-pixel color;
• compute, by the fragment shader executed on the GPU, a myopia-corrected color for each pixel of the fragment having a relative level of stimulation exceeding a threshold level, the myopia-corrected color for each pixel comprising a value, rm, for the first sub-pixel color and a value, gm, for the second sub-pixel color for the pixel, wherein rm≠ri and/or gm≠gi;
• and
• output, from the fragment shader executed on the GPU, the myopia-corrected pixel data for the fragment, the myopia-corrected pixel data comprising the myopia-corrected color for each pixel of the fragment having a relative level of stimulation exceeding the threshold level.

A non-transitory computer readable medium storing a program causing a graphics processing unit (GPU) to execute a process comprising:

• receiving, by a fragment shader executed on the GPU, rasterized data of a fragment of an image frame;
• determining, by the fragment shader executed on the GPU, an initial color for each pixel of the fragment, the initial color comprising a value, ri for a first sub-pixel color, a value, gi, for a second sub-pixel color, and a value, bi, for a third sub-pixel color;
• computing, by the fragment shader executed on the GPU, a relative level of stimulation of cones in a viewer's eye for each pixel of the fragment based, at least, on the value, ri, for the first sub-pixel color and the value, gi, for the second sub-pixel color;
• computing, by the fragment shader executed on the GPU, a myopia-corrected color for each pixel of the fragment having a relative level of stimulation exceeding a threshold level, the myopia-corrected color for each pixel comprising a value, rm, for the first sub-pixel color and a value, gm, for the second sub-pixel color for the pixel, wherein rm≠ri and/or gm≠gi;
• and
• outputting, from the fragment shader executed on the GPU, the myopia-corrected pixel data for the fragment, the myopia-corrected pixel data comprising the myopia-corrected color for each pixel of the fragment having a relative level of stimulation exceeding the threshold level.