On 2017-05-23 22:13, Ryan Joseph wrote:
I’ve wasted so much time on this I just need to stop and ask for help
already. Over the last few years I’ve been picking away at OpenGL and
only ever got the legacy 2.x API to work which has been fine for
making 2D games but I wanted to at least learn the modern API and
shaders.
Not sure what ZenGL uses for opengl version but why do you struggle to
use opengl directly instead of using a wrapper like zengl that has
already made the functions available for you...
The only problem with using a wrapper like zengl or andorra is that of
course it could go stale and not be updated, I'm not even sure if it
uses 2.x, I have forgotten.
[...]
if SDL_Init(SDL_INIT_VIDEO) < 0 then
Fatal('SDL could not initialize! '+SDL_GetError);
// load function pointers
if Load_GL_VERSION_3_3 = false then
Fatal('OpenGL is not loaded');
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
SDL_GL_CONTEXT_PROFILE_CORE);
// NOTE: 4.0 doesn't work, GL_VERSION return null
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
All these calls look kind of tedious, instead of using a wrapper. But
maybe you want to learn opengl at its heart and not use a wrapper.. and
learn all the fine details the hard way (full respect for that).
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