void render_fb_bind_texture( framebuffer *fb, int attachment, int slot );
void render_fb_inverse_ratio( framebuffer *fb, v2f inverse );
void render_fb_get_current_res( struct framebuffer *fb, int *x, int *y );
void render_fb_bind_texture( framebuffer *fb, int attachment, int slot );
void render_fb_inverse_ratio( framebuffer *fb, v2f inverse );
void render_fb_get_current_res( struct framebuffer *fb, int *x, int *y );