SDL/OpenGL Game Development Tutorials: Part 2 - Loading Textures

In this tutorial, I show you how to load images into SDL and convert them into textures for OpenGL for C++ in Code::Blocks.

[stormbot]

After 6 months of on and off searching for a way to get Allegro, SDL, or SFML for code::blocks to work, your videos have finally made it work.

[andreaseversberg]

two decades ago i played with opengl. this tutorial really helps me to get back to it.

[patrickscott]

Thank you so much man! I'm not new to programming, but I am new to graphics programming(GUI, OpenGL, etc.)  your tutorials really help.

[AndersonOliveira-ysqr]

Thanks for the tutorials, it will help me in the college.

[CyanAquaTheHedgehog]

SDL2 has stopped working? Any ideas. Photo height? bmp color space? 24bit? Idea?

[AfnanAbdul]

What is the reason it is only working with 128x128 images.
How can we load any size and any type images?

[NeilRoy]

Once you generate the texture with glTexImage2D() you can free the SDL surface as it is no longer needed (openGL copies the image to a texture format in video memory, the original image can be cleared after that). Otherwise the original image is sitting around wasting memory until the program exits.

Also, you're going to want to initialize your textures in a separate function, outside of the main loop.

[reijerboodt]

am i the only one that isn't able to find the image.bmp file on his website? If so, could someone provide me with a link? Thanks

[andreacappuccio]

Hi, and thanks for your shared knowledge.
I don't know why, but when I execute the .exe file generated after compilation, the window appears, and so does the square surface inside it, but instead of containing the ''image.bmp'' picture, it's plan white. Could it be some rendering issue?

[RubixiamGaming]

When i build and run this code, it is just a white screen and then crashes and says 'SDL2Game.exe has stopped working'
any help please guys? :/

[PhucTran-hxdk]

in linker settings you write -lmingw32 -lSDL2main -lSDL2 -lOpenGL32 -lglu32, don't you?

[DasCapschen]

lol, when I display the bitmap the background color of it is actually inverted...
So my image is blue bg with black text on it.
In the window it is orange bg with black text on it... WTF!?

[Termimaxor]

Because the SDL needs a console application to program with
the .exe from the release/debug build always closes right after I clicked it.
How can.I avoid that?(:

[anng]

'SDL2Game.exe has stopped working' how is this fixed? thanks

[kallebanan]

I may or may not sound like an dick now, but. Why can't you explain what all that code you pasted in the first episode? If I want to learn how to make a SDL program, I think it's PRETTY IMPORTANT to learn how to make a screen. I think I shuould learn all of that before I learn about loading images. Is there any reason why you didn't teach us that?