   Texture splatting Question: packed Alphamaps
  Hello there!one more thread for today! :PI am wanna use texture splatting for texturing the terrain on my 3dengine.If i want to have 4 alpha maps i must have 4 grayscale textures or pack the 4 alphamaps into one RGBA texture.Is there any way to access this 4 individual channels using OpenGL Fixed pipeline? or I should use a Pixel Shader to do that?thanks for your time :)   
  someone? :(   