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Re: "Add" generates a black border - 32-bit linear

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Walter Soyka
Re: "Add" generates a black border - 32-bit linear
on Jan 15, 2018 at 9:54:55 am

[Simon Ubsdell] "If you add a negative value to a positive value you will get a subtraction."

Indeed, this is one of the ways that 32bpc floating point works differently than 8bpc/16bpc.

The Levels effect has an option to clamp black and/or white. Add Levels, leave the "normal" Levels controls (the histogram, inputs, gamma and outputs) alone, and change "Clip to output black" from its default "Off for 32bpc color" to "On."

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
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