It seems that the definition of precision highp float / mediump on iOS has changed recently. The same behavior was not seen before on iPhone6S, iOS13. If I remember correctly. The Chapter of Random [image] The Book of Shaders Gentle step-by-step guide through the abstract and complex uni…

The way the precision qualifier is used in The book of Shaders can be confusing. The problem is that precision mediump float; still results in 32 bit floating point precision (highp) on almost all desktops. That makes it of course hard to test shader code with lower floating point precision. medium…

Precision highp float / mediump on iOS14,iPhone14

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hrtk February 25, 2021, 4:40pm 3

Thank you so much! Your explanation has cleared up the situation for me.

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Precision highp float / mediump on iOS14,iPhone14

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