OpenGL: Easiest way to make shadow and light Volumes? -

I want to ask what is the easiest way to create shadows and light volumes? How can I bring more realism to the scene? Do you know any good moves? I have heard that I have to use stencil buffer to create shadows, but I do not know how: / I can not find any simple simple examples to make it.

There is no simple easy way to do shadows, sorry to disappoint you, but computer Graphics have complex problems of shadow, especially if they have to look good.

P> NVIDIA SDK 9 () is a simple example of shadow mapping that is adopted. There are also a section on the shadows in all versions of GPU Gemstone and there is a good overview in the book (without code).