   Implementing Projective texture
  Hi, i want to implement Projective Texture, i know the theory but i dont know how to use it, what is the best method: HLSL ou pure C++? And how to work with this?   
  I would think it would be much easier using shaders than pure code. I think there were several samples for this in some of the ShaderX books. Also, that book (can't remember the name) by Wolfgang Engel has a projective texture example that you might use.   