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[Git][freetype/freetype][master] Document the SDF spread further.

From: Alexei Podtelezhnikov (@apodtele)
Subject: [Git][freetype/freetype][master] Document the SDF spread further.
Date: Sun, 28 Apr 2024 00:09:02 +0000

Alexei Podtelezhnikov pushed to branch master at FreeType / FreeType

Commits:

  • 4e079f63
    by Alexei Podtelezhnikov (Алексей Подтележников) at 2024-04-27T20:07:36-04:00 
    Document the SDF spread further.

1 changed file:

Changes:

  • include/freetype/ftdriver.h
    ... ... @@ -830,7 +830,8 @@ FT_BEGIN_HEADER
    830 830 
        *   the result clamped to the 8-bit range [0..255].  Therefore, 'spread'
    831 831 
        *   is also the maximum euclidean distance from the edge after which the
    832 832 
        *   values are clamped.  The spread is specified in pixels with the
    833 
    -   *   default value of 8.
    833 
    +   *   default value of 8.  For accurate SDF texture mapping (interpolation),
    834 
    +   *   the spread should be large enough to accommodate the target grid unit.
    834 835 
        *
    835 836 
        * @example:
    836 837 
        *   The following example code demonstrates how to set the SDF spread

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