Board Thread:Questions and Answers/@comment-18762052-20140115205003/@comment-14486980-20140116224336

As far as the double layer, just draw the screen twice with two different values of CAMZ. Just change it ±1. As far as loading textures from a GRP, put the textures into a GRP, then to load them, run a double FOR loop and GSPOIT them into your texture array. To use different block textures, increase the DIM on your texture array, put new textures into the extra space, and change the map data array.