I have a question about the strategy to place the islands within an UV map like "Tetris" to use as much of the space as possible: I realized that when you use a texture, like for example a wood texture which has a direction of lines, and project it onto the object this way to place the islands on the uv will mess up the texture directions on the object. The lines of the woods will be projected onto the object in the way the islands of the object parts are placed on the uv what will lead to strange directions / angles of the wood lines onto the object. This happens when the placement of the UV island does not respect the direction/placement on the object. It also happened to some clothing I have made: adding the fabric texture leads to a wild mixture of directions / angles of the woven fabric.
So I wonder when this is actually a good idea? It seems to me not to be a good idea when you want to use an image texture on an object for the above reason - or maybe I did something else wrong?!
