What is IBL lighting and where do you get it?
IBL ( Image Based Lighting) is using an image as a light source, instead of using the sun.
The exact terminology (IBL) is not used here, instead it's called: Enhance external brightness,
and can be selected as an option if you install ( or have installed) THIS plugin,
which also offers some other tools for enhancing the rendering process.
Settings:
The best way to use this for your project is to apply a totally white texture ( not colour!) to your sky and ground.
You could also experiment with panel lights to further enhance your renderings.
Cec