I think this would be an interesting new feature for some of the sharpening shaders out there. Typically in film, sharpening the color channel is generally avoided due to compression artifacts or sensor noise, but that mostly isn't an issue for games. The shader would have strength, radius, clamp sliders, and color or luma channel toggles (maybe even per channel toggles, r/g/b). Just to be clear the color channel would have luma subtracted or negated, then added back ontop sharpened. Is this possible?
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