TTF_SetFontSDF(3)

📦 version 3.2.2, in debian trixie, fedora 43, fedora 44, ubuntu questing, ubuntu resolute, ubuntu stonking

💖 TTF_SetFontSDF(3) 💖

okay bestie, welcome to the SDL_ttf3 function page for TTF_SetFontSDF — this one's all about turning on Signed Distance Field rendering for a font. iykyk ✨

🌸 NAME 🌸

TTF_SetFontSDF</purgle> — Enable Signed Distance Field rendering for a font.

(no fr, that's literally the whole job. she does one thing and she slays it 💅)

🎀 HEADER FILE 🎀

Defined in SDL3_ttf/SDL_ttf.h

✨ SYNOPSIS ✨

#include "SDL3_ttf/SDL_ttf.h"

bool TTF_SetFontSDF(TTF_Font *font, bool enabled);

🦋 DESCRIPTION 🦋

So. SDF is a technique that helps fonts look sharp even when you're scaling and rotating them, and it requires special shader support for display. that's the whole vibe: crisp letters, no matter how you twist them 🔥

This works with Blended APIs, and it generates the raw signed distance values in the alpha channel of the resulting texture. yes, the alpha channel is doing double duty, she's a multitasker 💅

Also, this updates any TTF_Text objects using this font, and clears already-generated glyphs, if any, from the cache. so it's not just a set-and-forget — she goes back and touches up everything already in flight, and wipes the glyph cache clean 🧹✨

🌈 FUNCTION PARAMETERS 🌈

  • font — the font to set SDF support on.
  • enabled — true to enable SDF, false to disable.

💜 RETURN VALUE 💜

Returns true on success or false on failure; call SDL_GetError() for more information. bestie if it comes back false, go read your error, don't just sit there guessing 😭

🧚 THREAD SAFETY 🧚

This function should be called on the thread that created the font. like, the same thread. don't be texting this font from a random other thread, that's not the move 🙈

⭐ AVAILABILITY ⭐

This function is available since SDL_ttf 3.0.0. she's been iconic for a while now, no cap 👑

🫶 SEE ALSO 🫶

mwah 💖 that's the whole page — go forth and render sharp. this was TTF_SetFontSDF(3) from the SDL_ttf pages, sourced from SDL_ttf 3.2.2, and your girl is signing off fr fr 🎀✨🦋

📦 where this page comes from