Overlapping views to create GUI and world view.

[AntonBesp]

I want to make user be able to zoom in/out the world. Like in games such as Terraria where you need to press + to zoom in and - to zoom out. I know that this feature is implemented in one method of View class. But also I have GUI that mustn't be resized on zooming. Can I create two views(one for GUI, another for world) and overlap them to achieve it? Will GUI view be transparent in places where it is wanted to be transparent?

[G.]

Yes, definitely.

[Nexus]

Yes, this is absolutely no problem.
Transparency is achieved with the alpha channel -- it's not affected by the view, only the color of the underlying pixel in the window.

A render cycle would be quite simple:

clear();

setView(world);
draw(world);

setView(gui);
draw(gui);

display();