Here is an example that shows how antialiasing can be used to smooth the jagged appearance of rendered text. This is a screenshot from a 240x320 ILI9341 based TFT. Two lines of text antialiased, followed by 2 lines that are not, then the same using a second italic font:
I am thinking of adding the ability to use antialiased fonts to the TFT_eSPI library. Is there any interest from users for this?
The foray into anti-aliased fonts has become more interesting than anticipated. The font file creator built into Processing allows the inclusion of specific Unicode blocks in the generated vlw file, so I have extended the experimental sketch to handle all UTF-16 Unicodes, permitting any of the Unicode font characters contained in the vlw file to be rendered to the TFT screen.
As an example, here is a TFT screenshot (from ILI9341 240x320 pixel TFT) showing the antialiased Hiragana character Unicode block (0x3041 to 0x309F) in 24pt from the Microsoft Yahei font:
The sketch is still a work in progress but the plan is to build in a vlw font file handler into the TFT_eSPI library.
