Trying to add text has been kind of a pain.With shader debugging I always end up writing the dumbest tests to figure out what is happening. You can throw in a bunch of if statements and just see what's up.
I'm sure there's a better library or a better explanation, but the whole process has been stitching parts together.
This is how to create the font using sdl, this is how to turn it into a texture for opengl, this is how to display the texture.
So then when it doesn't work, it's like was it one of those 3 steps, or is there something wrong with my shaders?
I like graphics programming, but it doesn't give error codes the way "regular" programming does.
I'd still say it's easier than debugging grammars.
It's been kind of fun though. Learning more about debugging.
Do you have regular textures working yet?