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[TestUFO Aliasing Visibility] Anti-aliasing gamma correction

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[TestUFO Aliasing Visibility] Anti-aliasing gamma correction

Postby silikone » 21 Aug 2017, 04:02

One thing I have noticed is that a visual pattern emerges from the line when anti-aliased. I suspect that this is due to a lack of gamma correction. Having the option to toggle this would be useful.
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Re: [TestUFO Aliasing Visibility] Anti-aliasing gamma correc

Postby Chief Blur Buster » 22 Aug 2017, 15:55

Regarding http://www.testufo.com/aliasing-visibility in two forms:

Without antialiasing:


With antialiasing:


(The object of this test is to see how sharp ("retina") a display must be become so a human can't see pixel jaggies in this line -- this is even often still visible on a 40" 4K display from ten feet away; further away than many would expect)

A gamma adjustment for the greys used in the anti-aliasing is a great idea! Unfortunately, I am currently using the default antialiasing algorithm. So, I'll have to create my own custom line-drawing routine with a gamma-adjustable antialiasing for this test.

If there's a lot of demand for a gamma adjustment feature for this test, I'll make updates to this specific TestUFO test. In the meantime, one can use the display's gamma adjustment feature instead.

If anyone else needs a gamma adjustment feature added to this particular test, please let me know -- thanks!
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