There's a lot of GUI-ish things that still need to be done, like animations... but for now I think, with the exception of keyboard and mouse input, I'm almost done with GUI features.

For the text you can also use MOText manually I think, but there might be a little trick for drawing it if it's not in a scene (not sure).

All of the layout and logic is actually a collection of lua classes, there's very little actually implemented in C++ right now (the atlasing system and RendererDrawQuad is really all it is)

Over lunch, I reused the atlas system to do bitmap font rendering using the same setup. I should be able to do any dialogue box with 2 draw calls with no optimisations, if it ends up being slow (really shouldn't) then I could probably make it ~2 draw calls for the whole GUI.

Yes, I know that the top left image is 1px larger than the rest, I will sort that

No, it's actually rendering nothing at all now But I'm quite happy to say that it's probably some of the crazy things I'd tried to get the thing displaying properly before that I haven't un-done yet. I will fiddle more tonight

Thanks

you have to set the viewport and the matrix, like with openGL :

void set2dMode(unsigned int width, unsigned int height)
{
    MRenderingContext * render = MEngine::getInstance()->getRenderingContext();
    render->setViewport(0, 0, width, height);
    
    // set ortho projection
    render->setMatrixMode(M_MATRIX_PROJECTION);
    render->loadIdentity();
    
    render->setOrthoView(0.0f, (float)width, (float)height, 0.0f, 1.0f, -1.0f);
    
    render->setMatrixMode(M_MATRIX_MODELVIEW);
    render->loadIdentity();
}

(used in the post process example : http://www.maratis3d.com/code/post-process/MyGame.cpp)

Oh, and another thing is that for some reason the setup that I assumed would be right, gave {0,0} at the bottom left (huh?)

I did also have render->setViewport(0,0, w, h); in there to test, but it did nothing.
The vertices I'm trying to draw are two quads from {0,0} to {200,200} and {100,100} to {300,300}.

Any ideas?