HLSL pixel shader: possible to not set output color?

Hm, does something like texkill exist in HLSL? Otherwise it is not that useful to me. Also at a first glance on the texkill dx documentation it seems to only kill the pixel if its tex coords are less than zero. But I like to use an arbitrary if statement to mask the pixel.

Thanks for your suggestion. Maybe I will try that some time. At the moment I just render one object, so I simply set the output color to the background color.