@Alberth 

“did you consider the impact of not disabling the mouse while debugging?”

Yes, this is what I am doing now to be able to debug, however in my windowed app this means I can not turn (e.g) left that much (when the mouse leaves the window), so this is not the best solution but this way I …

Two suggestions:

• The Wikipedia page on fisheye distortion lists several principled distortion types, actually adopted in real lenses, that have a realistic appearance and interesting properties. You'll need further sources for a good treatment of how they work.
• You could start from a reference pictur…

It should be precise enougth to detect what element is udner the mouse. How is your matrix constructed, is it a projection or orthogonal matrix?

If you initialized a projection matrix then you need to transform the coords of your 2D stuff into orthogonal window coords before you can use them. Then u…

The problem that occures here is that the event loop is flooded with OS specific events that tells the Window that it's position has changed. If you are on Windows for example you will always stay in the

while(true)
{
    if(PeekMessage)
    {
        TranslateMessage;
        DispatchMessage;
    }…