you need to use the blend states: srcBlend and destBlend. for the second and following passes you need to set EnableAlphaBlend = 1; and BlendOp = 1;
check the dx sdk documentation for those src and destBlend states
www.earthcontrol.de quoted: We want to maintain a clean, decent, American family suited forum look... which means you may post zombies or chainsaw massacres, but no erotic.
