progs/vp/add-param-imm.txt

   1 !!ARBvp1.0
   2 TEMP R0;
   3 PARAM Emission = state.material.emission;
   4 ADD R0, vertex.color, {-0.5}.x;
   5 ADD result.color, R0, Emission.w;
   6 MOV  result.position, vertex.position;
   7 END