Post

@icculus.icculus.org

Something I wanted in SDL3 for a long time just landed; you can make the SDL window just take up the whole browser window in Emscripten now. So instead of this: icculus.org/~icculus/ems... You can do this: icculus.org/~icculus/ems... Feels more friendly to browser games.

icculus.orgEmscripten-Generated Code

2/10/25, 5:04 pm3 reposts18 likes

Jameson Thatcher

@sireel.itch.io

2 Oct 2025

Is sdl3 support in emscripten new? When I was starting it with emscripten in may it didn't seem to be working Either way, so you have a link on how to set up the build?

Ryan C. Gordon

@icculus.icculus.org

2 Oct 2025

I don't know if it's built-in to Emscripten's ports yet (you probably can't do `-s USE_SDL=3`), but you can build SDL3 from source with Emscripten's compiler and CMake, and link against it. Or cheat, like I did with DirkSimple/SDL3 (Starting around the 1:18:00 point) youtu.be/V_MWXDr3Nu4?...

youtu.bePorting DirkSimple from SDL2 to SDL3YouTube video by Ryan C. Gordon (icculus)

Jameson Thatcher

@sireel.itch.io

2 Oct 2025

Thanks! I'm developing on windows which makes everything just a little harder and I tend to avoid cmake like the plague I can wait longer for the ports 😂 (excuse auto correct typos in the previous, my kingdom for an edit button etc)

Emscripten

@emscripten.org

3 Oct 2025

SDL3 should be working in Emscripten ports, including emcc -sUSE_SDL=3 Tested here: github.com/emscripten-c... Uses SDL 3.2.22 Let us know if something doesn't work!