Hi, When a player goes behind something in my game, I still want them to be visible so when there is a collision I draw an outline of the player and mask it with a copy of the texture that is being touched.   This works great apart from the colours of the outline get blended with the colors of the mask texture. So when the mask is something dark the outline is almost invisible. Disabling the mask shows what a difference there is. Sure I could make a solid white texture for everyth