// This is C2E2f_passthru from "The Cg Tutorial" (Addison-Wesley, ISBN
// 0321194969) by Randima Fernando and Mark J. Kilgard.  See page 53.

struct C2E2f_Output {
  float4 color : COLOR;
};

C2E2f_Output C2E2f_passthru(float4 color : COLOR)
{
  C2E2f_Output OUT;
  OUT.color = color;
  return OUT;
}