Hi there,

Just trying to get my head around this,
The Houdini paint sop seems super easy to use for painting colours but I can't seem to get it to paint the alpha channel of vert colours…
I think part of the problem might be that I also don't know how to visualise the alpha in the viewport.

Could anyone point me i the right direction here?

Thanks
Pete

Alpha is just a float attribute called “Alpha” :wink:
You can either paint it directly by putting it in the color override, or use “Accumulate Alpha” to force your brushstrokes to use it ( e.g. when you want to paint on something that has Alpha = 0 )
Either way you should see the results in the viewport.

Hey blackpixel, hat works great!
The thing that caught me was that you needed to create the Alpha attribute first. But now that I know that it should be fine.

Thanks!