mosesofegypt/pbgl

Partial implementation of OpenGL 1.x for the Xbox using NXDK and PBKit

pbGL

pbGL is a partial implementation of OpenGL 1.x for the Xbox using NXDK and PBKit. It's partially based on xgu-gl by JayFoxRox.

Status

Currently a subset of GL1.1 with some extensions from later versions is implemented.

To see what exactly is or isn't implemented, look at the GL headers.

Extension list:

• GL_ARB_multitexture
• GL_ARB_texture_env_combine

Do note that NPOT textures are not supported and will probably explode.

Usage

Link your project to libpbgl.lib and add the include folder to your include directories. You should then be able to use pbGL like any other GL implementation/loader, barring initialization and buffer swapping. Do keep in mind that you still have to set the display resolution before calling pbgl_init().

// define this to get GL function prototypes 
// or use pbgl_get_proc_address() (not yet implemented)
#define GL_GLEXT_PROTOTYPES
#include <pbgl.h>
#include <GL/gl.h>
#include <GL/glext.h>
...
// argument indicates whether or not to init PBKit as well
pbgl_init(GL_TRUE);
// you're free to use GL functions after this
...
glClearColor(1.f, 0.f, 0.f, 1.f);
glClear(GL_COLOR_BUFFER_BIT);
// don't forget to swap buffers when you're done with the frame
pbgl_swap_buffers();
...
pbgl_shutdown(); // this will also shutdown PBKit

See the samples repository for more in-depth usage examples.

Credits

• NXDK authors and contributors for NXDK and the libraries included in it
• mborgerson for xsm64, which taught me a lot about PBKit
• dracc for XGU
• JayFoxRox for xgu-gl