   blending two textures with the alpha value of the vertices
  Hi!I''m trying to do something like that: I have a terrain-grid, with  a dword-colorvalue for each vertex (including an alpha-transparency). The whole grid is covered with textures on two layers (ie grass(stage0) and rocks(stage1)). Now I want to blend the rock texture onto the grass, dependent of the vertex''s alpha-value. Now my first question, is it possible as I described it? (Finally, I want to get something like that: http://www.delphi3d.net/articles/printarticle.php?article=terraintex.htm)Does anybody have an advice for me? I''m very confused with all the SetTextureStageStates..Thanks a lot!misto 