sure this was one of the problems, but that’s not all, my screen is still blank =(
sv1.set( 0 , 0 , 0 ) ;
sv2.set( 1 , 0 , 0 ) ;
sv3.set( 0 , 1 , 0 ) ;
also i have proposal, people can complete documentation about this game engine, they could attach their source code in description, so after reading theory part you'll be able to see how to use it.
I didn’t understand how to use BLITing and google didn’t help me.