Thank you very much ! i will look in to those !
Last question, when i add some lights in my house, i encounter flickering on certain static objects like walls, floors and ladders and such and by flickering i mean it works fine but when i look at it from certain angles the light stops gicing light on that certain object and it goes dark . . while on some angles it's fine . . pretty wierd . . any idea what's that all about ?
There are a limited number of lights you should have that shines on things like walls etc.
For shadow casting lights keep it to 3 or less lights.
For regular lights you have to remember that they will cast their light *through* walls too...because they don't bounce off of walls.
Even for non-shadow casters try to keep the number of lights in any given area to a minimum.
If you must use a large number of lights within the light's radius there are tricks you can use some of the time.