Resolved Force alpha to be 1 or 0

Dipping my toe into editing some HLSL.

I am reading an alpha channel of an RT, and I am pretty sure my issue is that I need alpha to be less grey.
This is a look at the current alpha channel:

And I think to get a clean effect, I need it to be interpreted more like this:


I am currently doing a 1 - on the tex.a, which is working, but the grey stays greyish after the 1 - and the clip doesn't fully take effect. I must be learning, becuse I feel like I explained it well enough for someone to understand.

I was searching around and I see that there is a step method that seems to be in the direction of what I'm after, but I just can't get there.

 

could try step:
https://developer.download.nvidia.com/cg/step.html

 

That did it! The definition of step I had previously found was a half3, so I didn't think it was correct, but the page you linked showed that you could just do it on a float! Thank you! Getting there!