Hello Everyone, FreeType has recently added an 'SDF' driver which is capable of converting vector/bitmap fonts to signed distance field representation. Currently the driver uses 16 bit - 6.10 fixed point numbers to represent the final distance field data ( the maximum absolute distances in the output is limited to 2^5 i.e. 32 ). In my opinion ( and others too ), 8 bit output should be sufficient to represent distance field data ( something like 3.5 which maximum signed distance values of 4 ), so does it make sense to replace 16 bit with 8 bit output? What can be some other options?
If anyone has experience with SDF in a practical scenario, can you please give me your opinion regarding this and what you use in your application? You can also checkout this thread: https://lists.nongnu.org/archive/html/freetype-devel/2020-12/msg00041.html Thanks, Anuj
