SDL_HINT_RENDER_DIRECT3D11_DEBUG(3)

💖 SDL_HINT_RENDER_DIRECT3D11_DEBUG 💖

okay bestie, so this page is from the SDL3 function manual, section 3 — it's literally called SDL_HINT_RENDER_DIRECT3D11_DEBUG(3) and it's about one single hint. one. and it's a baddie. let's get into it ✨

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🌸 NAME 🌸

SDL_HINT_RENDER_DIRECT3D11_DEBUG — a variable that controls whether you turn on Direct3D 11+'s Debug Layer. that's the whole job. she does one thing and she eats. 💅

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🎀 SYNOPSIS 🎀

like every good SDL hint, she lives in the hints header:

#include <SDL3/SDL_hints.h>

#define SDL_HINT_RENDER_DIRECT3D11_DEBUG "SDL_RENDER_DIRECT3D11_DEBUG"

see that string? "SDL_RENDER_DIRECT3D11_DEBUG" — that's the actual name you pass around at runtime. the #define is just the cute lil nickname for it. don't mix them up, i'm begging 😭

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🦋 DESCRIPTION 🦋

first thing's first, and this is important so listen up: this variable does not have any effect on the Direct3D 9 based renderer. none. zero. she simply does not show up for D3D9. so if you're on the D3D9 renderer and wondering why nothing's happening… that's why, bestie. 🫶

now, the values. you can set the variable to these:

• "0" — Disable Debug Layer use. this is the default, so if you don't touch anything, this is what you get.
• "1" — Enable Debug Layer use. this is the "i want the debug layer, give me the debug layer" option. 🔥

and here's the timing tea, which is the part everyone forgets: this hint should be set before creating a renderer. before. not during, not after, not "oh i'll set it right after SDL_CreateRenderer i'm sure it's fine" — no. set it first. the hint has to be there before the renderer even exists. periodt. 👑

⚠️ warning bestie: set it before creating the renderer, or it's not gonna do what you want. the renderer reads this at creation time and that's it.

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🌈 AVAILABILITY 🌈

this hint has been available since SDL 3.2.0. so if you're on anything older than that, she hasn't debuted yet. sorry babe. 🧚

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and that's the whole page, no cap. go forth and debug your Direct3D 11+ layer responsibly. 💜

this was brought to you by Simple Directmedia Layer, version SDL 3.4.18 — mwah, stan SDL, bye bestie! 💖✨🎀🦋