Our pack comes along a custom version of Dolphin (a Gamecube emulator). The original mask textures are not used or processed in any way. Our solution was to create a tool that analyzes the game data to regenerate completely new mask textures from the upscaled background textures. The RESHDP texture pack solves the seam issue that always comes up when any kind of filtering or upscaling is applied to the game's mask textures.
