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Document the SDF spread further.

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Alexei Podtelezhnikov 2024-04-27 20:07:36 -04:00
parent e2bcca40ca
commit 4e079f6357
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include/freetype/ftdriver.h
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@ -830,7 +830,8 @@ FT_BEGIN_HEADER
* the result clamped to the 8-bit range [0..255]. Therefore, 'spread'
* is also the maximum euclidean distance from the edge after which the
* values are clamped. The spread is specified in pixels with the
* default value of 8.
* default value of 8. For accurate SDF texture mapping (interpolation),
* the spread should be large enough to accommodate the target grid unit.
*
* @example:
* The following example code demonstrates how to set the SDF spread