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Simple DirectMedia Layer (SDL) is a cross-platform multimedia library designed to provide low level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL, and 2D video framebuffer.

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I have looked up ways to calculate DeltaTime in the past, but the 'solutions' seem to have my program be slightly jittery or not move things correctly. As far as I know, you would calculate it by ...
Moss's user avatar
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My game loop looks roughly like this: ...
pan's user avatar
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When drawing transparent PNG data on to the renderer, pixel data of any previous drawing (layer beneath) is replaced with the renderer's drawing color (green). I have tried setting blend mode in the ...
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I am trying SDL2 Gamedev for the first time so I don't know the best practices yet. Now, I have a code structure which looks something like this: main.cpp ui button.cpp and button.hpp objects.cpp ...
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My voxel renderer app fails to create a framebuffer object only during launch / initial window resize event. It is an ERROR: GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT ...
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I'm using SDL to write a program that plays arcade game-style music (i.e. chip tune music generated by an emulator core) and I have a timing loop in my code that restricts the application to 30fps. ...
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As the title is saying I'm trying to make a simple skybox to learn how it works. Using, of course OpenGL and SDL. I have tried read some sites, here are them: link 1 link 2 link 3. None of them were ...
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I am trying to write a 3d Renderer in C using SDL and cgml but my shading seems to be not working correctly. When rendering the teapot I get seams and when I want to render a cube I get a bright white ...
Finn's user avatar
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I saw Lazy Foo using OpenGL & GLSL in SDL, but I want to use DirectX 11 & HLSL in SDL. Is there a way to do this, and how?
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I'm making a SDL and C++ game engine and I don't know where I'm failing. Here iss my code: Game.cpp ...
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I have worked on creating a gameloop and so far all of the code was inside a main.cpp file and I want to separate it into different files. Which caused several problems: My code is separated into 3 ...
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I am building a pong game in SDL2 as my first assignment for my game development class. I've encountered an error involving SDL_Rect that I can't figure out. I am ...
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Recently, I have been working on a small "pet-project" of mine in C using the SDL library. I have noticed that without my render-calls, my project takes up 2% of the CPU and with the render-...
Renadil's user avatar
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I've been working on a game using Bullet Physics for C++ as well as SDL for the windowing (with OpenGL) I've recently threaded the game, so that a separate while loop runs the Physics Simulation, ...
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I am working on a 2D isometric perspective game using SDL2 and I would like to implement the ability to pan the map when the right mouse button is held down. I was wondering what is best way to set ...
lancen's user avatar
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I've decided to take on a challenge of making 16 c++ games based on this challenge from FamTrinli, I'm using SDL + OpenGL. I've created a simple 2D game in the past, but I didn't like the code ...
koogel's user avatar
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I'm new to C++ and SDL2 and for the past few days I've been trying to figure out what to do with/how to handle assets for my game. I'm using an asset pack that includes 4 characters and each character ...
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I making a simple game following JoeyDeVrieses guide on OpenGL, I followed the guide and created an input system, which handles the keyboard inputs and quitting the application, the issue is I cannot ...
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I'm trying to program a simple space shooter and my goal right now is that when the player presses down and holds a key, the ship accelerates to a max velocity. I have that somewhat; the problem is ...
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I am new to SDL but have used C++ a fair bit over the years. I'm struggling with displaying sprites with a scale. EG. Here I am trying to draw a grid of squares (ie. Tetris) but the source BMP is ...
I_Keep_Trying's user avatar
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I've been creating a 2D game in sdl2 in C and within my main game loop, I have found a section of code that causes a massive memory leak in my program, roughly leaking 100MB of memory per second. The ...
Bilal Ahmed's user avatar
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I know the renderer frees memory allocated for its textures when destroyed but is this the case with SDL_DestroyWindow() as well?
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I have only Microsoft build tools and Visual Studio Code installed (not Visual Studio). The CSharpBeginner example from the Stride Game Studio seems to generate, build and run fine using the Game ...
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I tried to move to MinGW to compile my program, since I am trying to use a more recent OpenMP version than the 2.0 one used in Visual Studio. I was planning on using ...
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I'm in the process of learning SDL. On their webpage, they tout that commercial games (like Valve's Humble Bundle) use the SDL libraries. However, it seems like most of these games have more advanced ...
Izzo's user avatar
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I'd like to directly modify pixels in my window in SDL 2. I expect this code to display an entirely red window, but instead I'm getting an all black window. I'm able to get it working if I directly ...
Jack M's user avatar
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I'm trying to convert my emulator to SDL2 (from SDL 1.2). As I'm drawing pixel per pixel, I follow "If your game just wants to get fully rendered frames to the screen" in the migration guide:...
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I want to create a state machine for menu in my SDL game. So this is my code without the SDL I just want to ask if this is a good way to create it. here is a code: ...
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When I wrote my first application in SDL, it looked like this: while (!quit) { SDL_PollEvent(&event); switch (event) { // ... } } But ...
Jack M's user avatar
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I have drawn all of the images of my sprite in paint. Is there a way to remove all white pixels? ...
Duncan Blais's user avatar
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I am trying to make a platform game in C++ and SDL2. I tried to add a jump in the update() function of the main code below , but it does not work as expected, as you can see in the video: Note: I did ...
The Thinker's user avatar
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I'm writing an SDL2 program, in which I create a SDL_CreateWindow and get its SDL_GetWindowSurface, then I prepare some pixel ...
Kagaratsch's user avatar
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I am attempting to make a 3d game using SDL2 just to learn and have a bit of fun. I was wondering if there is any way to get SDL2 do calculations on GPU. I have read that SDL2 Textures uses GPU for ...
Apple_Banana's user avatar
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I'm new to SDL programming and I'm not quite sure I got how it handles events. Given an instance like this defined in "game.c": ...
Gian's user avatar
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I've been watching Javidx9's 3D engine series and I decided to start making it with SDL because it was something I had heard of and seemed simple enough. I'm not going to implement too complex ...
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TL, DR: Will I be able to get a single .exe file which will work smooth in a PC which does not have SDL or so installed ever. If not, how close will be the closest ...
muyustan's user avatar
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I am new to SDL and I've been following some tutorials; in one tutorial he used Surfaces (a window surface and image surface) and a BlitSurface function to draw images without using any renderer (used ...
alexmoran's user avatar
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2 answers
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I have trouble to make my sprite(Arrow) to point at the position of my mouse cursor but i don't get the Right results. I've tried this: ...
PhilCo's user avatar
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4 votes
1 answer
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First time in game dev, so go easy on me. I understand it's senseless to copy textures, but I'm trying to see this from a copy/move perspective since there is a lot of that going on in my code and in ...
monolith937's user avatar
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I am using the A * algorithm for my game, it is a kind of Isometric map with lots of tiles. If all the game objects are trees, rocks, houses and only one game object is a moving hero, the A * ...
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I am making a strategy game like Age of Empires. It's a pretty big project and I need a clear game structure. I have defined a Game_Object class with variables ...
Traistorm's user avatar
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I am making a 2D isometric game that uses the mouse. When I left click on an object, this object should be selected, but how do I determine what object that's currently selected and show a halo around ...
Traistorm's user avatar
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2 votes
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So let me just get this right out of the way, I'm using SDL1.2 (Lispbuilder-sdl specifically, as I'm using Common Lisp), so on to the problem. I'm trying to make a scrollbar that can scroll text in an ...
Lalzy's user avatar
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I'm trying to scale my window, for example from 440*420 to 320*240. How can I easily do this?
Aresiel's user avatar
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I'm trying to create a single SDL_Surface that has multiple lines of texts stacked on top of each other using SDL2. When I create a single ...
seamaster's user avatar
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I'm currently doing simple 3D drawing in OpenGL but I have hit a roadblock I just can't seem to get around. The problem is happening with trying to load .obj files. I've written my own .obj reader. I ...
RayShawnOfNapalm's user avatar
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In my game, there are many units and for each units there's an information widget attached next to them. I use SDL as the game rendering engine. I currently want to display their ID for debugging ...
truvaking's user avatar
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I am trying to make a 3D game with C++, SDL, and OpenGL. My program roughly looks like this: control function has only CPU operations. draw function has CPU and OpenGL functions operations. I just ...
Emre Kaya's user avatar
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This question is probably well documented but I can't find any resources. Basically I'm not sure how to structure rendering with SDL in my code. I made a render class which calls the api and the ...
dukevin's user avatar
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I wrote a simple app that generates a window, a raster, and redraws the raster once every 16ms. Right now the calculations are empty, it just draws a solid color. I don't know how, but I have created ...
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