Hello everyone! I've got one question. Is there any sense to use pure directx 10 in some more complicated projects (more than what is in dx 10 samples)? So, if i like to make some project i should use some graphic engine, or i can use directx without worrying, that one day it will too many code, and that project will get to complicated? I think if should use dx, becouse i could not found any free graphic engine that would use directx 10. Thanks a lot for any help. PS. Sorry for my english.

There's nothing to stop you from writing your own DX10 wrapper or engine. For a large project you are going to want to deal with DX through a wrapper.