FRAG
PROPERTY FS_COLOR0_WRITES_ALL_CBUFS 1
DCL IN[0], GENERIC[0], PERSPECTIVE
DCL OUT[0], COLOR
DCL SAMP[0]
DCL CONST[1..4]
DCL TEMP[0], LOCAL
  0: MOV TEMP[0].xy, IN[0].xyyy
  1: MOV TEMP[0].w, IN[0].wwww
  2: TXP TEMP[0], TEMP[0], SAMP[0], 2D
  3: MUL TEMP[0].xyz, TEMP[0], CONST[4]
  4: MOV TEMP[0].xyz, TEMP[0].xyzx
  5: MOV TEMP[0].w, CONST[4].wwww
  6: MOV OUT[0], TEMP[0]
  7: END