Version 1.12

• Added the possibility to specify asymmetrical distance range (-arange, -apxrange)
• Added the ability to export the shape into an SVG file (-exportsvg)
• Edge coloring no longer colors smooth contours white, which has been found suboptimal
• Fixed incorrect scaling of font glyph coordinates. To preserve backwards compatibility, the user has to enable the fix with an explicit additional argument:
  • -emnormalize in standalone, FONT_SCALING_EM_NORMALIZED in API for coordinates in ems
  • -noemnormalize in standalone, FONT_SCALING_NONE in API for raw integer coordinates
  • The default (backwards-compatible) behavior will change in a future version; a warning will be displayed if neither option is set
• Added two new developer-friendly export image formats: RGBA and FL32
• -size parameter renamed to -dimensions for clarity (old one will be kept for compatibility)
• generate*SDF functions now combine projection and range into a single argument (SDFTransformation)
• Conversion of floating point color values to 8-bit integers adjusted to match graphics hardware
• Improved edge deconvergence procedure and made sure that calling Shape::normalize a second time has no effect
• Fixed certain edge cases where Skia geometry preprocessing wouldn't make the geometry fully compliant
• The term "perpendicular distance" now used instead of "pseudo-distance" (PSDF instead of PseudoSDF in API)
• Fixed a bug in savePng where fclose could be called on null pointer
• Minor code improvements

Version 1.11

• Reworked SVG parser, which now supports multiple paths and other shapes - requires Skia
• Major performance improvements due to inlining certain low-level classes
• A limited version of the standalone executable can now be built without any dependencies
• Fixed listFontVariationAxes which previously reported incorrectly scaled values
• Fixed potential crash when generating SDF from an empty Shape
• Fixed a small bug in the error correction routine
• Errors now reported to stderr rather than stdout
• All command line arguments can now also be passed with two dashes instead of one
• Added -version argument to print the program's version
• Shape can now be loaded from a pointer to FreeType's FT_Outline
• Added hidden CMake options to selectively disable PNG, SVG, or variable font support
• Added CMake presets
• Other minor bug fixes

Version 1.10

• Switched to vcpkg as the primary dependency management system
• Switched to libpng as the primary PNG file encoder
• Parameters of variable fonts can be specified
• Fixed a bug that prevented glyph 0 to be specified in a glyphset

Version 1.9.2

• Improved detection of numerical errors in cubic equation solver
• Added -windingpreprocess option
• Fixed edge coloring not restored if lost during preprocessing

Version 1.9.1

• Fixed an edge case bug in the new MSDF error correction algorithm

Version 1.9

• Error correction of multi-channel distance fields has been completely reworked
• Added new edge coloring strategy that optimizes colors based on distances between edges
• Added some minor functions for the library API
• Minor code refactor and optimizations

Version 1.8

• Integrated the Skia library into the project, which is used to preprocess the shape geometry and eliminate any self-intersections and other irregularities previously unsupported by the software
  • The scanline pass and overlapping contour mode is made obsolete by this step and has been disabled by default. The preprocess step can be disabled by the new -nopreprocess switch and the former enabled by -scanline and -overlap respectively.
  • The project can be built without the Skia library, forgoing the geometry preprocessing feature. This is controlled by the macro definition MSDFGEN_USE_SKIA
• Significantly improved performance of the core algorithm by reusing results from previously computed pixels
• Introduced an additional error correction routine which eliminates MSDF artifacts by analytically predicting results of bilinear interpolation
• Added the possibility to load font glyphs by their index rather than a Unicode value (use the prefix g before the character code in -font argument)
• Added -distanceshift argument that can be used to adjust the center of the distance range in the output distance field
• Fixed several errors in the evaluation of curve distances
• Fixed an issue with paths containing convergent corners (those whose inner angle is zero)
• The algorithm for pseudo-distance computation slightly changed, fixing certain rare edge cases and improving consistency
• Added the ability to supply own FT_Face handle to the msdfgen library
• Minor refactor of the core algorithm

Version 1.7.1

• Fixed an edge case bug in scanline rasterization

Version 1.7

• Added mtsdf mode - a combination of msdf with sdf in the alpha channel
• Distance fields can now be stored as uncompressed TIFF image files with floating point precision
• Bitmap class refactor - template argument split into data type and number of channels, bitmap reference classes introduced
• Added a secondary "ink trap" edge coloring heuristic, can be selected using -coloringstrategy inktrap
• Added computation of estimated rendering error for a given SDF
• Added computation of bounding box that includes sharp mitered corners
• The API for bounds computation of the Shape class changed for clarity
• Fixed several edge case bugs

Version 1.6

• Core algorithm rewritten to split up advanced edge selection logic into modular template arguments.
• Pseudo-distance evaluation reworked to eliminate discontinuities at the midpoint between edges.
• MSDF error correction reworked to also fix distances away from edges and consider diagonal pairs. Code simplified.
• Added scanline rasterization support for Shape.
• Added a scanline pass in the standalone version, which corrects the signs in the distance field according to the selected fill rule (-fillrule). Can be disabled using -noscanline.
• Fixed autoframe scaling, which previously caused the output to have unnecessary empty border.
• -guessorder switch no longer enabled by default, as the functionality is now provided by the scanline pass.
• Updated FreeType and other libraries, changed to static linkage
• Added 64-bit and static library builds to the Visual Studio solution